Approved Vendor Lock Washers

APPROVED VENDOR -

Plain Grade 410 Stainless Steel Internal Tooth Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Thickness Tolerance	Class	Hardness	Price (inc. VAT)	Pkg. Qty.
A	U53462.008.0001	#2	0.089"	0.172"	0.01"	-	Not Applicable	Rockwell C40	£12.50	50
B	U53462.009.0001	#3	0.102"	0.215"	0.01"	-	Not Applicable	Rockwell C40	£2.88	50
C	U53462.011.0001	#4	0.115"	0.245"	0.012"	0.012" to 0.018"	Not Applicable	Rockwell C40	£2.41	50
D	U53462.013.0001	#6	0.141"	0.275"	0.016"	0.016" to 0.022"	Not Applicable	Rockwell C40	£4.83	50
E	U53462.016.0001	#8	0.168"	0.325"	0.018"	0.018" to 0.023"	Not Applicable	Rockwell C40	£7.37	50
F	U53462.019.0001	#10	0.195"	0.365"	0.018"	0.018" to 0.024"	Not Applicable	Rockwell C40	£3.08	50
G	U53462.021.0001	#12	0.221"	0.394"	0.02"	0.02" to 0.027"	Not Applicable	Rockwell C40	£3.60	50
H	U53462.050.0001	1/2"	0.512"	0.867"	0.037"	-0.004" to +0.004"	Not Applicable	Rockwell C40	£2.89	10
I	U53462.025.0001	1/4"	0.256"	0.46"	0.023"	-	Not Applicable	Rockwell C40	£4.22	50
J	U53462.075.0001	3/4"	0.769"	1.22"	0.047"	-0.004" to +0.004"	Not Applicable	Rockwell C40	£3.88	5
K	U53462.037.0001	3/8"	0.384"	0.67"	0.032"	-	Not Applicable	Rockwell C40	£10.91	50
L	U53462.062.0001	5/8"	16/25"	1.045"	0.042"	-0.004" to +0.004"	Not Applicable	Rockwell C40	£5.86	10
M	U53462.031.0001	5/16"	8/25"	0.594"	0.028"	-	Not Applicable	Rockwell C40	£8.01	50
N	U53462.043.0001	7/16"	0.448"	0.74"	0.032"	-	Not Applicable	Rockwell C40	£11.38	25

APPROVED VENDOR -

Zinc Plated Grade 2 Steel Internal Tooth Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Thickness Tolerance	Class	Price (inc. VAT)	Pkg. Qty.
A	U37480.100.0001	1"	1.019"	1.59"	Rockwell C38-C46	0.059"	0.059" to 0.067"	Not Applicable	£6.79	5
B	U37480.025.0001	1/4"	0.267"	0.478"	Rockwell C40-C50	0.028"	0.023" to 0.028"	Not Applicable	£5.77	100
C	U37480.087.0001	7/8"	0.894"	1.364"	Rockwell C38-C46	0.052"	0.052" to 0.06"	Not Applicable	£5.96	5
D	U37480.043.0001	7/16"	0.448"	0.74"	Rockwell C40-C50	0.032"	0.032" to 0.04"	Not Applicable	£5.28	25
E	U37480.056.0001	9/16"	0.576"	0.957"	Rockwell C38-C46	0.037"	0.037" to 0.045"	Not Applicable	£10.14	25

APPROVED VENDOR -

Furnace Black Steel Internal Tooth Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Class	Hardness	Type	Material	Price (inc. VAT)	Pkg. Qty.
A	M37320.030.0001	M3	3.2 mm	6 mm	0.4 mm to 0.8 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Steel	£4.62	100
A	M37320.040.0001	M4	4.3 mm	8 mm	0.5 mm to 1 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Steel	£4.05	100
A	M37320.050.0001	M5	5.3 mm	10 mm	0.6 mm to 1.2 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Steel	£5.50	100
A	M37320.060.0001	M6	6.4 mm	11 mm	0.7 mm to 1.4 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Steel	£5.18	100
A	M37320.080.0001	M8	8.4 mm	15 mm	0.8 mm to 1.6 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Steel	£10.02	100
A	M37320.100.0001	M10	10.5 mm	18 mm	0.9 mm to 1.8 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Steel	£14.57	100

APPROVED VENDOR -

Furnace Black Spring Steel Internal Tooth Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Class	Hardness	Type	Material	Price (inc. VAT)	Pkg. Qty.
A	SIW7S0200-100P1	M2	2.2 mm	4.5 mm	0.3 mm to 0.6 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Spring Steel	£6.77	100
A	SIW7S0250-100P1	M2.5	2.7 mm	5.5 mm	0.4 mm to 0.8 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Spring Steel	£7.14	100
A	SIW7S0260-100P1	M2.6	2.8 mm	5.5 mm	0.4 mm to 0.8 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Spring Steel	£6.01	100
A	SIW7S0350-100P1	M3.5	3.7 mm	7 mm	0.5 mm to 1 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Spring Steel	£4.69	100
A	SIW7S1400-100P2	M14	15 mm	24 mm	1 mm to 2 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Spring Steel	£42.19	100
A	SIW7S1600-100P2	M16	17 mm	26 mm	1.2 mm to 2.4 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Spring Steel	£46.75	100
A	SIW7S1800-050P2	M18	19 mm	30 mm	1.4 mm to 2.8 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Spring Steel	£36.99	50
A	SIW7S2000-050P2	M20	21 mm	33 mm	1.4 mm to 2.8 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Spring Steel	£46.02	50

APPROVED VENDOR -

Furnace Black Steel Split Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Thickness Tolerance	Class	Hardness	Price (inc. VAT)	Pkg. Qty.
A	M37000.030.0001	M3	3.1 mm	6.2 mm	0.8 mm	-0.1 mm to +0.1 mm	Not Applicable	Rockwell C44-C51	£3.21	100
A	M37200.030.0001	M3	3.1 mm	5.6 mm	1 mm	-	Not Applicable	Rockwell C44-C51	£5.15	100
A	M37000.035.0001	M3.5	3.6 mm	6.7 mm	0.8 mm	-0.1 mm to +0.1 mm	Not Applicable	Rockwell C44-C51	£3.28	100
A	M37200.040.0001	M4	4.1 mm	7 mm	1.2 mm	-	Not Applicable	Rockwell C44-C51	£3.45	100
A	M37000.040.0001	M4	4.1 mm	7.6 mm	0.9 mm	-0.1 mm to +0.1 mm	Not Applicable	Rockwell C44-C51	£1.98	100
A	M37200.050.0001	M5	5.1 mm	8.8 mm	1.6 mm	-	Not Applicable	Rockwell C44-C51	£6.22	100
A	M37000.050.0001	M5	5.1 mm	9.2 mm	1.2 mm	-0.1 mm to +0.1 mm	Not Applicable	Rockwell C44-C51	£1.30	100
A	M37200.060.0001	M6	6.1 mm	9.9 mm	1.6 mm	-	Not Applicable	Rockwell C44-C51	£2.33	100
A	M37000.060.0001	M6	6.1 mm	11.8 mm	1.6 mm	-0.1 mm to +0.1 mm	Not Applicable	Rockwell C44-C51	£2.32	100
A	M37000.080.0001	M8	8.1 mm	14.8 mm	2 mm	-0.1 mm to +0.1 mm	Not Applicable	Rockwell C44-C51	£3.40	100
A	M37200.080.0001	M8	8.1 mm	12.7 mm	2 mm	-	Not Applicable	Rockwell C44-C51	£4.06	100
A	M37200.100.0001	M10	10.2 mm	16 mm	2.5 mm	-0.127 mm to +0.127 mm	Not Applicable	Rockwell C44-C51	£3.54	100
A	M37000.100.0001	M10	10.2 mm	18.1 mm	2.2 mm	-0.15 mm to +0.15 mm	Not Applicable	Rockwell C44-C51	£3.90	100

APPROVED VENDOR -

Furnace Black Spring Steel Split Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Class	Hardness	Thickness Tolerance	Price (inc. VAT)	Pkg. Qty.
A	LW7S00200-100P1	M2	2.1 mm	4.4 mm	0.5 mm	Not Applicable	Rockwell C44-C51	-0.1 mm to +0.1 mm	£3.50	100
A	LW7S00250-100P1	M2.5	2.6 mm	5.1 mm	0.6 mm	Not Applicable	Rockwell C44-C51	-0.1 mm to +0.1 mm	£3.52	100
A	LW7S00260-100P1	M2.6	2.7 mm	5.2 mm	0.6 mm	Not Applicable	Rockwell C44-C51	-0.1 mm to +0.1 mm	£3.51	100

APPROVED VENDOR -

Hot Dipped Galvanized Steel Split Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Class	Hardness	Type	Material	Price (inc. VAT)	Pkg. Qty.
A	U37025.150.0001	1 1/2"	1.504"	2.419"	3/8"	Not Applicable	-	Split Lock	Steel	£17.24	5
B	U37025.175.0001	1 3/4"	1.758"	2.679"	0.389"	Not Applicable	-	Split Lock	Steel	£24.37	5
C	U37025.137.0001	1 3/8"	1.379"	2.219"	0.344"	Not Applicable	-	Split Lock	Steel	£17.75	5
D	U37025.250.0001	2 1/2"	2.512"	3.471"	11/25"	Not Applicable	-	Split Lock	Steel	£45.04	5
E	U37025.200.0001	2"	2.008"	2.936"	0.422"	Not Applicable	-	Split Lock	Steel	£35.38	5

APPROVED VENDOR -

Plain Steel Split Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Thickness Tolerance	Class	Color	Price (inc. VAT)	Pkg. Qty.
A	U37000.008.0001	#2	0.088"	0.172"	Rockwell C40-C50	0.02"	-	Not Applicable	-	£2.81	100
B	U37000.009.0001	#3	0.101"	0.195"	Rockwell C40-C50	0.025"	-	Not Applicable	-	£3.00	100
C	U37000.011.0001	#4	0.114"	0.209"	Rockwell C40-C50	0.025"	-	Not Applicable	-	£1.10	100
D	U37170.011.0001	#4	0.114"	0.253"	Rockwell C40-C50	0.034"	-	Not Applicable	-	£6.37	100
E	U37200.011.0001	#4	0.114"	0.173"	Rockwell C40-C50	0.022"	-	Not Applicable	-	£2.62	100
F	U37180.011.0001	#4	0.114"	0.223"	-	0.031"	-	Not Applicable	-	£3.49	100
G	U37180.012.0001	#5	0.127"	0.252"	Rockwell C40-C50	1/25"	-	Not Applicable	-	£4.65	100
H	U37200.012.0001	#5	0.127"	0.202"	Rockwell C40-C50	0.031"	-	Not Applicable	-	£2.39	100
I	U37000.012.0001	#5	0.127"	0.236"	Rockwell C40-C50	0.031"	-	Not Applicable	-	£2.26	100
J	U37200.013.0001	#6	0.141"	0.216"	Rockwell C40-C50	0.031"	-	Not Applicable	-	£4.57	100
K	U37000.013.0001	#6	0.141"	1/4"	Rockwell C40-C50	0.031"	-	Not Applicable	-	£1.18	100
L	U37180.013.0001	#6	0.141"	0.266"	-	1/25"	-	Not Applicable	-	£4.83	100
M	U37170.013.0001	#6	0.141"	0.314"	Rockwell C38-C46	0.045"	+0.006"	Not Applicable	Black	£6.00	100
N	U37180.016.0001	#8	0.167"	0.307"	Rockwell C40-C50	0.047"	-	Not Applicable	-	£5.43	100
O	U37170.016.0001	#8	0.167"	3/8"	Rockwell C40-C50	0.057"	-	Not Applicable	-	£12.55	100
P	U37000.016.0001	#8	0.167"	0.293"	Rockwell C40-C50	1/25"	-	Not Applicable	-	£1.41	100
Q	U37200.016.0001	#8	0.167"	0.267"	Rockwell C40-C50	0.047"	-	Not Applicable	-	£3.16	100
R	U37200.019.0001	#10	0.193"	0.294"	Rockwell C40-C50	0.047"	-	Not Applicable	-	£2.37	100
S	U37000.019.0001	#10	0.193"	0.334"	Rockwell C40-C50	0.047"	-	Not Applicable	-	£1.79	100
T	U37170.019.0001	#10	0.193"	0.434"	Rockwell C40-C50	0.068"	-	Not Applicable	-	£12.33	100
U	U37180.021.0001	#12	0.22"	0.391"	Rockwell C40-C50	0.063"	-	Not Applicable	-	£9.25	100
V	U37000.021.0001	#12	0.22"	0.377"	Rockwell C40-C50	0.056"	-	Not Applicable	-	£3.52	100
W	U37170.150.0001	1 1/2"	1.504"	2.627"	Rockwell C38-C46	0.496"	-	Not Applicable	-	£82.33	5
X	LWHIS150USA-010BX	1 1/2"	1.504"	2.491"	Rockwell C38-C46	0.458"	+0.02"	Not Applicable	Black	£112.08	10
Y	U37180.150.0001	1 1/2"	1.504"	2.491"	Rockwell C38-C46	0.458"	-	Not Applicable	-	£67.32	5

APPROVED VENDOR -

Plain Grade A4 Stainless Steel Split Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Thickness Tolerance	Class	Hardness	Color	Price (inc. VAT)	Pkg. Qty.
A	M55450.020.0001	M2	2.1 mm	4.4 mm	0.5 mm	-	Not Applicable	-	-	£2.40	50
B	M55450.025.0001	M2.5	2.6 mm	5.1 mm	0.6 mm	-	Not Applicable	-	-	£2.27	50
C	M55450.030.0001	M3	3.1 mm	6.2 mm	0.8 mm	-	Not Applicable	-	-	£4.68	50
D	LW7XX00350-100P1	M3.5	3.6 mm	6.7 mm	0.8 mm	-0.1 mm to +0.1 mm	Not Applicable	-	-	£7.25	100
E	M55450.040.0001	M4	4.1 mm	7.6 mm	0.9 mm	-	Not Applicable	-	-	£3.20	50
F	M55390.050.0001	M5	5.1 mm	8.8 mm	1.6 mm	-	Not Applicable	Rockwell C38-C46	-	£4.23	50
G	M55450.050.0001	M5	5.1 mm	9.2 mm	1.2 mm	-	Not Applicable	-	-	£5.84	50
H	M55390.060.0001	M6	6.1 mm	9.9 mm	1.6 mm	-	Not Applicable	Rockwell C38-C46	-	£4.37	50
I	M55450.060.0001	M6	6.1 mm	11.8 mm	1.6 mm	-	Not Applicable	-	-	£4.32	50
J	M55390.080.0001	M8	8.1 mm	12.7 mm	2 mm	-	Not Applicable	Rockwell C38-C46	-	£3.76	50
K	M55450.080.0001	M8	8.1 mm	14.8 mm	2 mm	-0.1 mm to +0.1 mm	Not Applicable	-	-	£4.14	50
L	M55450.100.0001	M10	10.2 mm	18.1 mm	2.2 mm	-	Not Applicable	-	-	£7.23	50
F	M55390.100.0001	M10	10.2 mm	16 mm	2.5 mm	-	Not Applicable	Rockwell C38-C46	-	£9.01	50
M	M55450.120.0001	M12	12.2 mm	21.1 mm	2.5 mm	-	Not Applicable	-	-	£4.95	25
N	M55450.140.0001	M14	14.2 mm	24.1 mm	3 mm	-0.15 mm to +0.15 mm	Not Applicable	-	-	£10.34	25
O	M55450.160.0001	M16	16.2 mm	27.4 mm	3.5 mm	-	Not Applicable	-	-	£4.99	10
P	M55450.180.0001	M18	18.2 mm	29.4 mm	3.5 mm	-	Not Applicable	-	-	£6.30	10
Q	M55450.200.0001	M20	20.2 mm	33.6 mm	4 mm	-	Not Applicable	-	-	£4.65	5
R	M55450.220.0001	M22	22.5 mm	35.9 mm	4 mm	-	Not Applicable	Rockwell C38-C46	-	£8.90	5
N	M55450.240.0001	M24	24.5 mm	40 mm	5 mm	-0.2 mm to +0.2 mm	Not Applicable	-	-	£10.00	5

APPROVED VENDOR -

Zinc Plated Steel Internal and External Tooth Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Class	Hardness	Type	Material	Price (inc. VAT)	Pkg. Qty.
A	U37590.050.0001	1/2"	0.512"	1.38"	0.052"	Not Applicable	Rockwell C40-C50	Internal And External Tooth Lock	Steel	£11.87	25
B	U37590.037.0001	3/8"	0.384"	1 1/8"	0.042"	Not Applicable	Rockwell C40-C50	Internal And External Tooth Lock	Steel	£10.94	50

APPROVED VENDOR -

Plain Grade A2 Stainless Steel Split Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Thickness Tolerance	Class	Color	Price (inc. VAT)	Pkg. Qty.
A	M51450.020.0001	M2	2.1 mm	4.4 mm	Rockwell C38-C46	0.5 mm	-	Not Applicable	-	£2.50	50
B	M51450.025.0001	M2.5	2.6 mm	5.1 mm	Rockwell C38-C46	0.6 mm	-	Not Applicable	-	£2.50	50
C	M51450.026.0001	M2.6	2.7 mm	5.2 mm	Rockwell C46	0.6 mm	-	Not Applicable	-	£2.35	50
D	M51450.030.0001	M3	3.1 mm	6.2 mm	Rockwell C46	0.8 mm	-	Not Applicable	-	£3.54	50
E	M51390.030.0001	M3	3.1 mm	5.6 mm	Rockwell C40-C50	1 mm	-	Not Applicable	-	£2.71	50
F	M51450.035.0001	M3.5	3.6 mm	6.7 mm	Rockwell C46	0.8 mm	-	Not Applicable	-	£1.10	50
G	M51390.040.0001	M4	4.1 mm	7 mm	Rockwell C40-C50	1.2 mm	-	Not Applicable	-	£2.44	50
H	M51450.040.0001	M4	4.1 mm	7.6 mm	Rockwell C35	0.9 mm	-	Not Applicable	-	£4.01	50
I	M51450.050.0001	M5	5.1 mm	9.2 mm	Rockwell C38-C46	1.2 mm	-	Not Applicable	-	£3.64	50
J	M51390.050.0001	M5	5.1 mm	8.8 mm	Rockwell C40-C50	1.6 mm	-	Not Applicable	-	£3.32	50
K	M51390.060.0001	M6	6.1 mm	9.9 mm	Rockwell C40-C50	1.6 mm	-	Not Applicable	-	£3.09	50
L	M51450.060.0001	M6	6.1 mm	11.8 mm	Rockwell C35	1.6 mm	-0.1 mm to +0.1 mm	Not Applicable	-	£5.11	50
M	M51450.080.0001	M8	8.1 mm	14.8 mm	Rockwell C35	2 mm	-0.1 mm to +0.1 mm	Not Applicable	-	£4.52	50
N	M51390.080.0001	M8	8.1 mm	12.7 mm	Rockwell C40-C50	2 mm	-	Not Applicable	-	£3.89	50
O	M51390.100.0001	M10	10.2 mm	16 mm	Rockwell C40-C50	2.5 mm	-	Not Applicable	-	£5.44	50
P	M51450.100.0001	M10	10.2 mm	18.1 mm	Rockwell C35	2.2 mm	-0.15 mm to +0.15 mm	Not Applicable	-	£6.41	50
Q	M51450.120.0001	M12	12.2 mm	21.1 mm	-	2.5 mm	-0.15 mm to +0.15 mm	Not Applicable	-	£5.50	25
R	M51390.120.0001	M12	12.2 mm	18 mm	-	2.5 mm	-	Not Applicable	-	£4.14	25
S	M51450.140.0001	M14	14.2 mm	24.1 mm	Rockwell C35	3 mm	-0.15 mm to +0.15 mm	Not Applicable	-	£7.08	25
T	M51450.160.0001	M16	16.2 mm	27.4 mm	-	3.5 mm	-0.2 mm to +0.2 mm	Not Applicable	-	£4.15	10
U	M51450.180.0001	M18	18.2 mm	29.4 mm	Rockwell C35	3.5 mm	-	Not Applicable	-	£4.30	10
V	M51450.200.0001	M20	20.2 mm	33.6 mm	-	4 mm	-	Not Applicable	-	£3.55	5
W	M51450.220.0001	M22	22.5 mm	35.9 mm	Rockwell C38-C46	4 mm	-	Not Applicable	-	£4.28	5
X	M51450.240.0001	M24	24.5 mm	40 mm	Rockwell C35	5 mm	-	Not Applicable	-	£6.07	5

APPROVED VENDOR -

Zinc Plated Steel External Tooth Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Thickness Tolerance	Class	Color	Price (inc. VAT)	Pkg. Qty.
A	U37420.011.0001	#4	0.123"	0.26"	Rockwell C40-C50	0.018"	-	Not Applicable	-	£1.00	100
B	6DZC4	#6	0.15"	8/25"	Rockwell C40-C50	0.022"	-0.006"	Not Applicable	-	£6.57	100
C	U37420.013.0001	#6	0.15"	8/25"	Rockwell C40-C50	0.022"	-	Not Applicable	-	£0.91	100
D	U37420.016.0001	#8	0.176"	0.381"	Rockwell C40-C50	0.023"	-	Not Applicable	-	£1.56	100
B	6DZC5	#8	0.176"	0.381"	Rockwell C40-C50	0.023"	-0.005"	Not Applicable	-	£4.02	100
E	U37420.019.0001	#10	0.204"	0.41"	Rockwell C40-C50	0.024"	-	Not Applicable	-	£1.52	100
F	U37420.050.0001	1/2"	0.513"	22/25"	Rockwell C40-C50	0.037"	-	Not Applicable	-	£2.27	25
G	U37420.075.0001	3/4"	0.768"	1.22"	Rockwell C40-C50	0.047"	-	Not Applicable	-	£4.14	10
H	U37420.037.0001	3/8"	0.384"	0.67"	Rockwell C40-C50	0.032"	-	Not Applicable	-	£2.78	50
I	U37420.062.0001	5/8"	0.641"	1.045"	Rockwell C40-C50	0.042"	-	Not Applicable	-	£2.80	10
J	U37420.031.0001	5/16"	0.332"	0.61"	Rockwell C40-C50	0.034"	-	Not Applicable	-	£2.65	100
K	U37420.043.0001	7/16"	0.448"	0.74"	Rockwell C40-C50	0.032"	-	Not Applicable	-	£2.24	25
L	U37420.056.0001	9/16"	0.576"	24/25"	Rockwell C40-C50	0.037"	-	Not Applicable	-	£4.26	25
M	M37420.030.0001	M3	3.2 mm	6 mm	Rockwell C38-C46	0.4 mm	-	Not Applicable	-	£5.55	100
N	M37480.030.0001	M3	3.2 mm	6 mm	-	0.4 mm	-	Not Applicable	Gray	£2.83	100
O	M37420.040.0001	M4	4.3 mm	8 mm	Rockwell C38-C46	0.5 mm	-	Not Applicable	-	£5.85	100
N	M37480.040.0001	M4	4.3 mm	8 mm	-	0.5 mm	-	Not Applicable	-	£4.61	100
P	M37480.050.0001	M5	5.3 mm	10 mm	-	0.6 mm	-	Not Applicable	-	£7.16	100
Q	M37420.050.0001	M5	5.3 mm	10 mm	-	0.6 mm	-	Not Applicable	Gray	£5.85	100
R	M37420.051.0001	M5	5.1 mm	9 mm	Rockwell C38-C46	0.5 mm	-	Not Applicable	-	£5.85	100
S	M37480.060.0001	M6	6.4 mm	11 mm	-	0.7 mm	-	Not Applicable	-	£3.80	100
T	M37420.060.0001	M6	6.4 mm	11 mm	Rockwell C38-C46	0.7 mm	-	Not Applicable	-	£5.69	100
U	M37420.080.0001	M8	8.4 mm	15 mm	-	0.8 mm	-	Not Applicable	Gray	£9.67	100
V	M37420.082.0001	M8	8.2 mm	14 mm	Rockwell C38-C46	0.8 mm	-	Not Applicable	-	£11.97	100
W	M37480.080.0001	M8	8.4 mm	15 mm	-	0.8 mm	-	Not Applicable	Gray	£10.28	100

APPROVED VENDOR -

Plain Grade 410 Stainless Steel External Tooth Lock Washers

A

B

C

D

E

F

G

H

I

J

K

L

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Thickness Tolerance	Class	Color	Price (inc. VAT)	Pkg. Qty.
A	U53460.011.0001	#4	0.115"	0.245"	Rockwell C40-C50	0.012"	0.012" to 0.018"	Not Applicable	-	£1.92	50
B	1NY46	#4	0.123"	0.26"	Rockwell C40	0.018"	0.012" to 0.018"	Not Applicable	Silver	£4.85	100
C	U53460.013.0001	#6	0.141"	0.305"	Rockwell C40	0.016"	0.016" to 0.022"	Not Applicable	-	£1.61	50
D	U53460.016.0001	#8	0.168"	0.365"	Rockwell C40	0.018"	-	Not Applicable	-	£2.54	50
E	U53460.019.0001	#10	0.195"	0.395"	Rockwell C40	0.018 ft.	-	Not Applicable	-	£3.65	50
F	U53460.050.0001	1/2"	0.513"	22/25"	Rockwell C40	0.037"	-	Not Applicable	-	£2.92	10
G	U53460.025.0001	1/4"	0.256"	0.494"	Rockwell C40	0.023"	0.023" to 0.028"	Not Applicable	-	£8.19	50
H	U53460.075.0001	3/4"	0.768"	1.22"	Rockwell C40	0.047"	-	Not Applicable	-	£4.87	5
I	U53460.037.0001	3/8"	0.398"	0.694"	Rockwell C40	1/25"	0.032" to 0.04"	Not Applicable	Silver	£12.32	50
J	U53460.062.0001	5/8"	0.641"	1.045"	Rockwell C40	0.042"	-	Not Applicable	-	£12.41	10
K	U53460.031.0001	5/16"	8/25"	0.588"	Rockwell C40	0.028"	-	Not Applicable	-	£7.03	50
L	U53460.043.0001	7/16"	0.448"	0.74"	Rockwell C40	0.032"	0.032" to 0.04"	Not Applicable	-	£9.02	25

APPROVED VENDOR -

Plain Phosphor Bronze External Tooth Lock Washers

A

B

C

D

E

F

G

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Thickness Tolerance	Class	Price (inc. VAT)	Pkg. Qty.
A	U50450.011.0001	#4	0.123"	0.26"	Rockwell B90	0.018"	0.012" to 0.018"	Not Applicable	£6.96	100
B	U50450.013.0001	#6	0.15"	8/25"	Rockwell B90	0.022"	0.016" to 0.022"	Not Applicable	£5.10	100
C	U50450.016.0001	#8	0.176"	0.381"	Rockwell B90	0.023"	0.018" to 0.023"	Not Applicable	£13.18	100
D	U50450.019.0001	#10	0.204"	0.41"	Rockwell B90	0.024"	0.018" to 0.024"	Not Applicable	£19.48	100
E	U50450.050.0001	1/2"	0.53"	0.9"	Rockwell B90	0.045"	0.037" to 0.045"	Not Applicable	£28.72	25
F	U50450.025.0001	1/4"	0.267"	0.51"	Rockwell B90	0.028"	0.023" to 0.028"	Not Applicable	£16.75	100
G	U50450.037.0001	3/8"	0.384"	0.67"	Rockwell C50	0.032"	-	Not Applicable	£23.41	50
G	U50450.031.0001	5/16"	8/25"	0.588"	Rockwell C50	0.028"	-	Not Applicable	£24.45	100

APPROVED VENDOR -

Plain Silicon Bronze Split Lock Washers

A

B

C

D

E

F

G

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Thickness Tolerance	Class	Hardness	Price (inc. VAT)	Pkg. Qty.
A	1NU87	#4	3/25"	0.209"	0.025"	+0.025"	Not Applicable	Rockwell B90	£4.53	100
B	1NU88	#6	0.148"	1/4"	0.031"	+0.031"	Not Applicable	Rockwell B90	£7.34	100
C	U43150.019.0001	#10	0.193"	0.334"	0.047"	-	Not Applicable	Rockwell B90	£45.48	100
D	U43150.021.0001	#12	0.22"	0.377"	0.056"	-	Not Applicable	Rockwell B90	£41.49	100
E	1NU95	1/2"	0.641"	1.073"	1/8"	+0.156"	Not Applicable	Rockwell B90	£53.26	25
D	U43150.050.0001	1/2"	0.502"	0.869"	1/8"	-	Not Applicable	Rockwell B90	£40.46	25
D	U43150.025.0001	1/4"	0.252"	0.487"	1/16"	-	Not Applicable	Rockwell B90	£64.49	100
F	U43150.037.0001	3/8"	0.377"	17/25"	3/32"	-	Not Applicable	Rockwell B90	£66.76	50
D	U43150.062.0001	5/8"	0.628"	1.073"	0.156"	-	Not Applicable	Rockwell B90	£46.82	10
G	U43150.075.0001	5/8"	0.766"	1.265"	0.156"	+0.188"	Not Applicable	Rockwell B90	£35.81	10

APPROVED VENDOR -

Plain Phosphor Bronze Internal Tooth Lock Washers

A

B

C

D

E

F

G

H

I

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Thickness Tolerance	Class	Price (inc. VAT)	Pkg. Qty.
A	U50462.008.0001	#2	0.095"	1/5"	Rockwell B90	0.015"	0.01" to 0.016"	Not Applicable	£3.67	100
B	U50462.011.0001	#4	0.123"	0.27"	Rockwell B90	0.018"	0.012" to 0.018"	Not Applicable	£6.00	100
C	U50462.013.0001	#6	0.15"	0.295"	Rockwell B90	0.02"	0.016" to 0.022"	Not Applicable	£6.92	100
D	U50462.016.0001	#8	0.176"	0.34"	Rockwell B90	0.023"	0.018" to 0.023"	Not Applicable	£7.69	100
E	U50462.019.0001	#10	0.204"	0.381"	Rockwell B90	0.024"	0.018" to 0.024"	Not Applicable	£25.87	100
F	U50462.050.0001	1/2"	0.53"	0.9"	Rockwell B90	0.045"	0.037" to 0.045"	Not Applicable	£16.97	25
G	U50462.025.0001	1/4"	0.256"	0.46"	Rockwell B90	0.023"	0.023" to 0.028"	Not Applicable	£19.12	100
H	U50462.037.0001	3/8"	0.398"	0.692"	Rockwell B90	1/25"	0.032" to 0.04"	Not Applicable	£25.15	50
I	U50462.031.0001	5/16"	8/25"	0.594"	Rockwell C50	0.028"	-	Not Applicable	£59.53	100

APPROVED VENDOR -

Galvanized Steel Split Lock Washers

A

B

C

D

E

F

G

H

I

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Class	Type	Material	Price (inc. VAT)	Pkg. Qty.
A	U37025.125.0001	1 1/4"	1.254"	2.036"	Rockwell C40-C50	0.312"	Not Applicable	Split Lock	Steel	£13.10	5
B	U37025.112.0001	1 1/8"	1.129"	1.847"	Rockwell C38-C46	0.281"	Not Applicable	Split Lock	Steel	£8.22	5
C	U37025.100.0001	1"	1.003"	1.656"	Rockwell C38-C46	1/4"	Not Applicable	Split Lock	Steel	£4.42	5
D	U37025.050.0001	1/2"	0.502"	0.869"	Rockwell C38-C46	1/8"	Not Applicable	Split Lock	Steel	£3.29	25
E	U37025.025.0001	1/4"	0.26"	0.487"	Rockwell C35	1/16"	Not Applicable	Split Lock	Steel	£1.94	100
F	U37025.075.0001	3/4"	0.753"	1.265"	Rockwell C32	3/16"	Not Applicable	Split Lock	Steel	£3.77	10
G	U37025.037.0001	3/8"	0.377"	17/25"	Rockwell C35	3/32"	Not Applicable	Split Lock	Steel	£3.72	50
H	U37025.062.0001	5/8"	0.628"	1.073"	Rockwell C38-C46	0.156"	Not Applicable	Split Lock	Steel	£2.48	10
I	U37025.087.0001	7/8"	0.878"	1.459"	Rockwell C38-C46	0.219"	Not Applicable	Split Lock	Steel	£3.34	5

APPROVED VENDOR -

Grade 2 Steel Split Lock Washers

A

B

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Class	Color	Price (inc. VAT)	Pkg. Qty.
A	U37060.125.0001	1 1/4"	1.254"	2.036"	Rockwell C38	0.312"	Not Applicable	Silver	£6.55	5
B	U37025.031.0001	5/16"	0.322"	0.583"	Rockwell C38-C46	0.0781"	Not Applicable	-	£5.20	100

APPROVED VENDOR -

Zinc Plated Grade 2 Steel External Tooth Lock Washers

A

B

C

D

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Thickness Tolerance	Class	Color	Price (inc. VAT)	Pkg. Qty.
A	U37420.021.0001	#12	0.231"	0.475"	Rockwell C40-C50	0.027"	0.02" to 0.027"	Not Applicable	Silver	£6.97	100
B	U37420.100.0001	1"	1.025"	1.59"	Rockwell C38-C46	0.059"	0.059" to 0.067"	Not Applicable	Silver	£7.24	5
C	U37420.025.0001	1/4"	0.267"	0.51"	Rockwell C40-C50	0.028"	0.023" to 0.028"	Not Applicable	Silver	£7.05	100
D	U37420.087.0001	7/8"	0.897"	1.38"	Rockwell C38-C46	0.052"	0.052" to 0.06"	Not Applicable	Silver	£5.04	5

APPROVED VENDOR -

Plain Grade A2 Stainless Steel External Tooth Lock Washers

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Class	Type	Material	Price (inc. VAT)	Pkg. Qty.
A	M51456.030.0001	M3	3.2 mm	6 mm	Rockwell C40	0.4 mm	Not Applicable	External Tooth Lock	Stainless Steel	£1.87	50
B	M51460.030.0001	M3	3.2 mm	6 mm	-	0.4 mm	Not Applicable	External Tooth Lock	Stainless Steel	£2.24	50
C	M51460.040.0001	M4	4.3 mm	8 mm	-	0.5 mm	Not Applicable	External Tooth Lock	Stainless Steel	£1.07	50
D	M51456.040.0001	M4	4.3 mm	8 mm	-	0.5 mm	Not Applicable	External Tooth Lock	Stainless Steel	£1.62	50
E	M51460.051.0001	M5	5.1 mm	9 mm	-	0.5 mm	Not Applicable	External Tooth Lock	Stainless Steel	£6.29	50
F	M51456.050.0001	M5	5.3 mm	10 mm	-	0.6 mm	Not Applicable	External Tooth Lock	Stainless Steel	£2.40	50
G	M51460.050.0001	M5	5.3 mm	10 mm	-	0.6 mm	Not Applicable	External Tooth Lock	Stainless Steel	£1.75	50
H	M51456.060.0001	M6	6.4 mm	11 mm	-	0.7 mm	Not Applicable	External Tooth Lock	Stainless Steel	£3.04	50
I	M51460.060.0001	M6	6.4 mm	11 mm	-	0.7 mm	Not Applicable	External Tooth Lock	Stainless Steel	£5.11	50
J	M51460.080.0001	M8	8.4 mm	15 mm	-	0.8 mm	Not Applicable	External Tooth Lock	Stainless Steel	£4.76	50
E	M51460.082.0001	M8	8.2 mm	14 mm	-	0.8 mm	Not Applicable	External Tooth Lock	Stainless Steel	£4.99	50
K	M51456.080.0001	M8	8.4 mm	15 mm	-	0.8 mm	Not Applicable	External Tooth Lock	Stainless Steel	£4.96	50
E	M51460.100.0001	M10	10.5 mm	18 mm	-	0.9 mm to 2.7 mm	Not Applicable	External Tooth Lock	Stainless Steel	£4.48	50
L	M51456.100.0001	M10	10.5 mm	18 mm	-	0.9 mm	Not Applicable	External Tooth Lock	Stainless Steel	£5.55	50
M	M51456.120.0001	M12	13 mm	20.5 mm	-	1 mm	Not Applicable	External Tooth Lock	Stainless Steel	£2.32	25
N	M51460.120.0001	M12	13 mm	20.5 mm	Rockwell C38-C46	1 mm	Not Applicable	External Tooth Lock	Stainless Steel	£3.65	25
O	M51456.140.0001	M14	15 mm	24 mm	-	1 mm	Not Applicable	External Tooth Lock	Stainless Steel	£3.46	25
E	M51460.160.0001	M16	17 mm	26 mm	-	1.2 mm to 3.6 mm	Not Applicable	External Tooth Lock	Stainless Steel	£2.74	10
P	M51456.160.0001	M16	17 mm	26 mm	-	1.2 mm to 2.4 mm	Not Applicable	External Tooth Lock	Stainless Steel	£4.51	10
Q	M51460.200.0001	M20	21 mm	33 mm	-	1.4 mm	Not Applicable	External Tooth Lock	Stainless Steel	£4.30	5
R	M51460.240.0001	M24	25 mm	38 mm	-	1.5 mm	Not Applicable	External Tooth Lock	Stainless Steel	£4.26	5

APPROVED VENDOR -

Plain Grade 18-8 Stainless Steel Internal Tooth Lock Washers

A

B

C

D

E

F

G

H

I

J

K

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Thickness Tolerance	Class	Price (inc. VAT)	Pkg. Qty.
A	U51462.011.0001	#4	0.115"	0.245"	Rockwell C45-C50	0.012"	0.012" to 0.018"	Not Applicable	£5.41	50
B	U51462.013.0001	#6	0.141"	0.275"	Rockwell C45-C50	0.016"	0.016" to 0.022"	Not Applicable	£4.16	50
C	U51462.016.0001	#8	0.168"	0.325"	Rockwell C45-C50	0.018"	0.018" to 0.023"	Not Applicable	£13.01	50
D	U51462.019.0001	#10	0.195"	0.365"	Rockwell C45-C50	0.018"	0.018" to 0.024"	Not Applicable	£6.51	50
E	U51462.050.0001	1/2"	0.512"	0.867"	Rockwell C45-C50	0.037"	0.037" to 0.045"	Not Applicable	£12.18	10
F	U51462.025.0001	1/4"	0.256"	0.46"	Rockwell C20-C45	0.023"	0.023" to 0.028"	Not Applicable	£10.87	50
G	U51462.075.0001	3/4"	0.769"	1.22"	Rockwell C45-C50	0.047"	0.047" to 0.055"	Not Applicable	£16.04	5
H	U51462.037.0001	3/8"	0.384"	0.67"	-	0.032"	-	Not Applicable	£26.34	50
I	U51462.062.0001	5/8"	16/25"	1.045"	Rockwell C20-C45	0.042"	0.042" to 0.05"	Not Applicable	£19.15	10
J	U51462.031.0001	5/16"	8/25"	0.594"	Rockwell C20-C45	0.028"	0.028" to 0.034"	Not Applicable	£18.25	50
K	U51462.056.0001	9/16"	0.576"	0.957"	Rockwell C45-C50	0.037"	0.037" to 0.045"	Not Applicable	£19.03	10

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Plain Grade 410 Stainless Steel Internal Tooth Lock Washers

Zinc Plated Grade 2 Steel Internal Tooth Lock Washers

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Furnace Black Spring Steel Internal Tooth Lock Washers

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Furnace Black Spring Steel Split Lock Washers

Hot Dipped Galvanized Steel Split Lock Washers

Plain Steel Split Lock Washers

Plain Grade A4 Stainless Steel Split Lock Washers

Zinc Plated Steel Internal and External Tooth Lock Washers

Plain Grade A2 Stainless Steel Split Lock Washers

Zinc Plated Steel External Tooth Lock Washers

Plain Grade 410 Stainless Steel External Tooth Lock Washers

Plain Phosphor Bronze External Tooth Lock Washers

Plain Silicon Bronze Split Lock Washers

Plain Phosphor Bronze Internal Tooth Lock Washers

Galvanized Steel Split Lock Washers

Grade 2 Steel Split Lock Washers

Zinc Plated Grade 2 Steel External Tooth Lock Washers

Plain Grade A2 Stainless Steel External Tooth Lock Washers

Plain Grade 18-8 Stainless Steel Internal Tooth Lock Washers

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