Lock Washers

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Lock washers are used for creating tight assemblies with ordinary fasteners. Raptor Supplies offers a wide range of lock washers from brands like Unistrut, ...Read more

NORD-LOCK -

Wedge Lock Washers

StyleModelFinishFits Bolt SizesInside Dia.MaterialOutside Dia.Rockwell HardnessSizeThicknessPrice (inc. VAT)
A2890Delta Protect3"3.11"Steel4.33Min 46 HRC3"0.37"£657.33
B1531Delta ProtectM120.51"Steel1"Min 46 HRC-0.13"£24.16
C1515Delta Protect#80.17"Steel0.3"Min 46 HRCM40.07"£20.38
D1341Delta Protect1 1/81.24"Steel1.85Min 46 HRC1 1/8"0.13"£397.66
E2884Delta Protect2"2.11"Steel3.15Min 46 HRC2"0.28"£120.68
F2804Delta Protect7/8"0.92"Steel1.36"Min 46 HRC7/8"0.13"£404.35
G2724Delta Protect1 1/81.24"Steel2.3Min 46 HRC1 1/8"0.26"£388.78
H2191Delta ProtectM4243.2 mmSteel63Min 46 HRC-6.6 mm£418.30
I1644Delta Protect9/16"0.6"Steel0.91"Min 46 HRC9/16"0.13"£179.60
J2899Delta ProtectM120123.4 mmSteel170Min 46 HRCM1209.5 mm£821.70
K1557Delta Protect1 3/81.47"Steel2.48Min 46 HRCM360.26"£16.67
L1536Delta Protect5/8"0.67"Steel1"Min 46 HRCM160.13"£23.42
M1534Delta Protect9/16"0.6"Steel0.91"Min 46 HRCM140.13"£26.07
N1528Delta ProtectM100.42"Steel0.83"Min 46 HRC-0.1"£19.75
O1537Delta Protect5/8"0.67"Steel1.21"Min 46 HRCM160.13"£17.67
P1527Delta ProtectM100.42"Steel0.65"Min 46 HRC-0.1"£24.41
Q1526Delta Protect3/8"0.41"Steel0.83"Min 46 HRC3/8"0.1"£20.93
R1523Delta Protect5/16"0.34"Steel0.53"Min 46 HRCM80.1"£23.39
S1522Delta Protect1/4"0.28"Steel0.53"Min 46 HRC1/4"0.1"£21.60
T1516Delta Protect#80.17"Steel0.35"Min 46 HRCM40.07"£20.38
U1307Delta ProtectM2021.4 mmSteel30.7mmMin 46 HRC-3.4 mm£274.87
V1262Delta ProtectM1213.0 mmSteel19.5mmMin 46 HRC-2.5 mm£255.81
W1250Delta ProtectM1010.7 mmSteel21mmMin 46 HRC-2.5 mm£279.34
X1236Delta Protect5/16"0.34"Steel0.65"Min 46 HRC5/16"0.1"£163.94
Y1219Delta ProtectM66.5 mmSteel10.8Min 46 HRC-1.8 mm£115.40
APPROVED VENDOR -

Carbon Steel Standard Split Lock Washer

StyleModelColorFinishFits Bolt SizesInside Dia.Outside Dia.Rockwell HardnessThicknessThickness TolerancePrice (inc. VAT)
AM37000.100.0001-Furnace BlackM1010.2mm18.1mmC44 to C512.2mm+/-0.15mm£3.81
BM37020.035.0001-ZincM3.53.6mm6.7mmC44 to C510.8 mm+/-0.10mm£5.54
AM37000.060.0001-Furnace BlackM66.1mm11.8mmC44 to C511.6mm+/-0.10mm£2.27
AM37000.050.0001-Furnace BlackM55.1mm9.2mmC44 to C511.2mm+/-0.10mm£1.27
AM37000.035.0001-Furnace BlackM3.53.6mm6.7mmC44 to C510.8 mm+/-0.10mm£3.20
CU37060.025.0001-Yellow Zinc1/4"0.260"0.487"C38 to C460.062"-£2.18
DU37020.025.0001-Zinc1/4"0.260"0.487"C38 to C460.062"-£1.88
EU37020.021.0001-Zinc#120.227"0.377"C38 to C460.056"-£1.95
FU37020.019.0001-Zinc#100.200"0.334"C38 to C460.047"-£1.47
GM37020.040.0001-ZincM44.1mm7.6mmC44 to C510.9mm+/-0.10mm£1.28
HU37020.031.0001-Zinc5/16"0.322"0.583"C38 to C460.078"-£2.98
IU37025.025.0001-Galvanized1/4"0.260"0.487"C350.062"-£1.89
JU37025.031.0001-Hot Dipped Galvanized5/16"0.322"0.583"C38 to C460.078"-£5.08
KU37020.016.0001-Zinc#80.174"0.293"C38 to C460.04"-£1.34
LU37000.031.0001-Plain5/16"0.322"0.583"C38 to C460.078"-£2.90
MM37020.030.0001-ZincM33.1mm6.2mmC44 to C510.8 mm+/-0.10mm£1.53
NM37020.026.0001-ZincM2.62.7mm5.2mmC44 to C510.6 mm+/-0.10mm£1.86
AM37000.040.0001-Furnace BlackM44.1mm7.6mmC44 to C510.9mm+/-0.10mm£1.94
OU37020.013.0001-Zinc#60.148"0.25"C38 to C460.031"-£1.29
PM37020.100.0001-ZincM1010.2mm18.1mmC44 to C512.2mm+/-0.15mm£3.51
QM37020.050.0001-ZincM55.1mm9.2mmC44 to C511.2mm+/-0.10mm£1.53
RU37060.031.0001-Yellow Zinc5/16"0.322"0.583"C38 to C460.078"-£3.02
AM37000.030.0001-Furnace BlackM33.1mm6.2mmC44 to C510.8 mm+/-0.10mm£3.13
SM37020.020.0001-ZincM22.1mm4.4mmC44 to C510.5 mm+/-0.10mm£2.59
AM37000.080.0001-Furnace BlackM88.1mm14.8mmC44 to C512mm+/-0.10mm£3.32
MIDWEST ACORN NUT -

Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.SizeThicknessPrice (inc. VAT)
AMPB10001/4"0.260"0.487"1/4"0.062"£44.31
BMPB10023/8"0.385"0.68"3/8"0.094"£46.77
CMPB10015/16"0.322"0.583"5/16"0.078"£46.77
FOREVERBOLT -

Split Lock Washers

StyleModelFits Bolt SizesInside Dia.MaterialOutside Dia.SizeThicknessThickness TolerancePrice (inc. VAT)
AFBLKW6P100#60.141"18-8 Stainless Steel0.25"-0.031"+/-0.005"£44.60
BFB3LKW6P100#60.141"316 Stainless Steel0.25"-0.031"+/-0.005"£47.43
CFB3LKW8P100#81.67"316 Stainless Steel0.293"-0.04"+/-0.005"£46.61
DFBLKW8P100#81.67"18-8 Stainless Steel0.293"-0.04"+/-0.005"£45.28
EFB3LKW10P100#100.193"316 Stainless Steel0.334"-0.047"+/-0.005"£47.59
FFBLKW10P100#100.193"18-8 Stainless Steel0.334"-0.047"+/-0.005"£46.28
GFBLKW1P101"1.003"18-8 Stainless Steel1.6521"0.25"+/-0.005"£56.90
HFB3LKW1P51"1.003"316 Stainless Steel1.6521"0.25"+/-0.005"£40.34
IFB3LKW12P251/2"0.502"316 Stainless Steel0.869"1/2"0.125"+/-0.005"£38.92
JFBLKW12P501/2"0.502"18-8 Stainless Steel0.869"1/2"0.125"+/-0.005"£58.72
KFBLKW14P1001/4"0.252"18-8 Stainless Steel0.487"1/4"0.062"+/-0.005"£50.25
LFB3LKW14P1001/4"0.252"316 Stainless Steel0.487"1/4"0.062"+/-0.005"£51.26
MFB3LKW34P203/4"0.753"316 Stainless Steel1.2643/4"0.188"+/-0.005"£55.11
NFBLKW34P253/4"0.753"18-8 Stainless Steel1.2643/4"0.188"+/-0.005"£59.45
OFBLK38P1003/8"0.377"18-8 Stainless Steel0.68"3/8"0.094"+/-0.005"£73.19
PFB3LKW38P503/8"0.377"316 Stainless Steel0.68"3/8"0.094"+/-0.005"£44.58
QFBLKW58P255/8"0.628"18-8 Stainless Steel1.072"5/8"0.156"+/-0.005"£42.50
RFB3LKW58P255/8"0.628"316 Stainless Steel1.072"5/8"0.156"+/-0.005"£45.40
SFB3LKW516P505/16"0.314"316 Stainless Steel0.583"5/16"0.078"+/-0.005"£40.27
TFBLKW516P1005/16"0.314"18-8 Stainless Steel0.583"5/16"0.078"+/-0.005"£69.21
UFB3LKW78P107/8"0.878"316 Stainless Steel1.4557/8"0.219"+/-0.005"£43.60
VFBLKW78P107/8"0.878"18-8 Stainless Steel1.4557/8"0.219"+/-0.005"£42.60
WFBLKW716P507/16"0.44"18-8 Stainless Steel0.776"7/16"0.109"+/-0.005"£43.93
XFB3LKW716P257/16"0.44"316 Stainless Steel0.776"7/16"0.109"+/-0.005"£38.60
YFBLKWM3P100M33.1 mm18-8 Stainless Steel6.2mm-0.8 mm+/-0.2mm£44.94
FABORY -

Lock Washers

StyleModelColorFinishFits Bolt SizesInside Dia.MaterialOutside Dia.SizeThicknessPrice (inc. VAT)
AB37000.013.0001-Plain#60.141"Carbon Steel0.25"-0.031"£792.03
BB53462.019.0001-Plain#100.195"Stainless Steel0.365"-0.018"£3,394.17
CB37200.125.0001-Plain#21.254"Carbon Steel1.79"-0.313"£214.66
DB55450.011.0001-Plain#100.114"Stainless Steel0.209"-0.025"£784.04
EB55462.037.0001-Plain3/8"0.384"Stainless Steel0.67"3/8"0.032"£1,575.04
FB53462.075.0001-Plain#50.769"Stainless Steel1.22"-0.047"£2,134.65
GB37000.021.0001-Plain#120.22"Carbon Steel0.377"-0.056"£741.50
HB53462.050.0001-Plain#30.512"Stainless Steel0.867"-0.037"£1,590.46
IB53462.025.0001-Plain#20.256"Stainless Steel0.46"-0.023"£1,280.06
JB37200.031.0001-Plain#40.314"Carbon Steel0.457"-0.093"£258.97
KB53462.016.0001-Plain#80.168"Stainless Steel0.325"-0.018"£2,764.87
LB55450.031.0001-Plain#80.314"Stainless Steel0.583"-0.078"£859.72
MB37200.016.0001-Plain#30.167"Carbon Steel0.267"-0.047"£2,085.42
NB53462.011.0001-Plain#40.115"Stainless Steel0.245"-0.012"£2,530.87
OB37200.012.0001-Plain#100.127"Carbon Steel0.202"-0.03"£2,775.79
PB53462.008.0001-Plain#20.089"Stainless Steel0.172"-0.01"£2,834.84
QB53460.075.0001-Plain#100.768"Stainless Steel1.22"-0.047"£2,003.18
RB53460.062.0001-Plain#80.641"Stainless Steel1.045"-0.042"£5,409.77
SB53460.050.0001-Plain#60.513"Stainless Steel0.88"-0.037"£1,616.62
TB37183.112.0001-Zinc Plated#101.129"Carbon Steel1.903"-0.345"£985.52
UB55450.025.0001-Plain#60.252"Stainless Steel0.487"-0.062"£601.31
VB55450.037.0001-Plain#100.377"Stainless Steel0.68"-0.094"£709.14
WB53460.025.0001-Plain#60.256"Stainless Steel0.494"-0.023"£1,542.12
XB37420.019.0001-Zinc Plated#40.195"Carbon Steel0.395"-0.018"£840.18
YB37480.021.0001-Zinc Plated#120.221"Carbon Steel0.394"-0.02"£721.09
VULCAN HART -

Lock Washers

StyleModelHeightItemLengthWidthPrice (inc. VAT)
A718385-Lock Washer---
RFQ
A00-854945-Lock Washer---
RFQ
A712327-Lock Washer---
RFQ
A00-944147-00002-Washer--£1.77
RFQ
A716614-Lock Washer---
RFQ
A00-850075-Lock Washer---
RFQ
A00-857919-00008-Lock Washer--£5.07
RFQ
A00-730311-Lock Washer---
RFQ
BWL-006-170.01"Washer0.35"0.4"-
RFQ
AWL-007-190.05"Lock Washer0.4"0.5"-
RFQ
CWL-004-060.2"Lock Washer0.6"0.65"-
RFQ
DWL-014-100.15"Lock Washer0.15"0.3"-
RFQ
EWL-003-440.15"Lock Washer0.5"0.5"-
RFQ
AWL-004-030.45"Washer3.95"6.5"-
RFQ
F00-857918-000080.55"Lock Washer2.5"5.85"£4.58
RFQ
GWL-014-070.95"Lock Washer2.3"3.9"-
RFQ
DISC-LOCK -

Lock Washer Bolts

StyleModelFinishFits Bolt SizesInside Dia.MaterialOutside Dia.Rockwell HardnessSizeThicknessPrice (inc. VAT)
AGDM-112Delta Protect30mm32.39mmCarbon Steel47.6mmHRC 40-55 Case Hardened30mm6.73mm£177.49
BGDP-107Delta Protect5/8"0.651"Carbon Steel1.247"HRC 40-55 Case Hardened5/8"0.188"£185.68
CGDP-103Delta Protect3/8"0.409"Carbon Steel0.705"HRC 40-55 Case Hardened3/8"0.16"£162.91
DGDP-102Delta Protect5/16"0.326"Carbon Steel0.628"HRC 40-55 Case Hardened5/16"0.142"£125.37
EGDP-112Delta Protect1.25"1.275"Carbon Steel1.875"HRC 40-55 Case Hardened1.25"0.265"£184.24
FGDP-101Delta Protect1/4"0.262"Carbon Steel0.495"HRC 40-55 Case Hardened1/4"0.127"£119.12
GGDP-113Delta Protect1.5"1.523"Carbon Steel2.196"HRC 40-55 Case Hardened1.5"0.256"£288.13
HGDM-117Delta Protect36mm37.30mmCarbon Steel55.8mmHRC 40-55 Case Hardened36mm6.73mm£223.36
IGDP-117Delta Protect1.375"1.469"Carbon Steel2.196"HRC 40-55 Case Hardened1.375"0.265"£225.47
JGDM-102Delta Protect8mm8.28mmCarbon Steel16 mmHRC 40-55 Case Hardened83.6mm£107.67
KGDP-111Delta Protect1.125"1.140"Carbon Steel1.715"HRC 40-55 Case Hardened1.125"0.256"£154.20
LGDP-110Delta Protect1"1.015"Carbon Steel1.61"HRC 40-55 Case Hardened1"0.256"£402.23
MGDP-105Delta Protect1/2"0.510"Carbon Steel0.937"HRC 40-55 Case Hardened1/2"0.166"£129.23
NGDP-108Delta Protect3/4"0.820"Carbon Steel1.381"HRC 40-55 Case Hardened3/4"0.242"£242.05
OGDP-109Delta Protect7/8"0.883"Carbon Steel1.47"HRC 40-55 Case Hardened7/8"0.268"£347.84
PGDP-106Delta Protect9/16"0.572"Carbon Steel1.128"HRC 40-55 Case Hardened9/16"0.175"£182.94
QGDM-108Delta Protect20mm20.82mmCarbon Steel35.1mmHRC 40-55 Case Hardened20mm6.15mm£217.89
RGDP-104Delta Protect7/16"0.450"Carbon Steel0.88"HRC 40-55 Case Hardened7/16"0.135"£119.45
SGDM-105Delta Protect12mm12.95mmCarbon Steel23.8mmHRC 40-55 Case Hardened12"4.22mm£110.85
TGDM-107Delta Protect16mm16.53mmCarbon Steel31.7mmHRC 40-55 Case Hardened16mm4.79mm£144.88
UGDM-113Delta Protect38mm38.68mmCarbon Steel55.8mmHRC 40-55 Case Hardened38mm6.5mm£228.19
VGDM-109Delta Protect22mm22.44mmCarbon Steel37.3mmHRC 40-55 Case Hardened22mm6.8mm£326.17
WGDM-101Delta Protect6mm6.66mmCarbon Steel12.6mmHRC 40-55 Case Hardened63.22mm£99.59
XGDM-103Delta Protect10mm10.38mmCarbon Steel17.9mmHRC 40-55 Case Hardened104.06mm£132.26
YGDM-104Delta Protect11mm11.43mmCarbon Steel22.4mmHRC 40-55 Case Hardened11mm3.89mm£94.42
FABORY -

Split Lock Washers

StyleModelColorFinishFits Bolt SizesInside Dia.ItemMaterialOutside Dia.Rockwell HardnessPrice (inc. VAT)
AB37020.011.0001-Zinc Plated#40.114"Split Lock WasherSteel0.209"-£1,319.49
BB37020.013.0001-Zinc Plated#60.141"Lock WasherCarbon Steel0.25"-£693.37
CB37020.021.0001-Zinc Plated#120.22"Lock WasherCarbon Steel0.377"-£387.90
DB37020.019.0001-Zinc Plated#100.193"Lock WasherCarbon Steel0.334"-£500.98
EB37020.016.0001-Zinc Plated#80.167"Lock WasherCarbon Steel0.293"-£772.10
FB37020.175.0001-Zinc Plated1 3/41.758"Lock WasherSteel2.679"-£416.03
GB37020.008.0001-Zinc Plated#20.088"Split Lock WasherSteel0.172"-£3,647.69
HU43150.013.0001--#60.141"Split Lock WasherSilicon Bronze0.25"B90£6.54
IB37020.150.0001-Zinc Plated1 1/21.504"Lock WasherSteel2.419"-£142.39
JB37020.043.0001-Zinc Plated7/16"0.44"Lock WasherSteel0.77"-£215.63
KB37020.056.0001-Zinc Plated9/16"0.564"Lock WasherSteel0.965"-£190.77
LB37020.112.0001-Zinc Plated1 1/81.129"Lock WasherSteel1.847"--
RFQ
MB37020.125.0001-Zinc Plated1 1/41.254"Lock WasherSteel2.036"-£150.83
NB37020.200.0001-Zinc Plated2"2.008"Lock WasherSteel2.936"-£281.92
OB37020.037.0001-Zinc Plated3/8"0.377"Lock WasherSteel0.68"-£178.05
PB37020.031.0001-Zinc Plated5/16"0.314"Lock WasherCarbon Steel0.583"C40 to C50-
RFQ
HU43150.031.0001--5/16"0.314"Split Lock WasherSilicon Bronze0.583"B90£48.44
QB37020.012.0001-Zinc Plated#50.127"Split Lock WasherSteel0.236"-£1,303.98
RB37020.009.0001-Zinc Plated#30.101"Split Lock WasherSteel0.195"-£3,428.71
SU37025.043.0001-Hot Dipped Galvanized7/16"0.44"Split Lock WasherSteel0.77"C38 to C46£2.98
TB37020.137.0001-Zinc Plated1 3/81.379"Lock WasherSteel2.219"-£259.06
UL37025.080.0001GrayGalvanizedM88.1 mmSplit Lock WasherSpring Steel DIN267-2614.8mm-£724.10
VM37020.023.0001GrayZinc PlatedM2.32.4 mmSplit Lock WasherSpring Steel DIN267-264.9-£2.19
VM37025.240.0001GrayGalvanizedM2424.5 mmSplit Lock WasherSpring Steel DIN267-2640mm-£30.03
VM37025.200.0001GrayGalvanizedM2020.2 mmSplit Lock WasherSpring Steel DIN267-2633.6mm-£43.44
APPROVED VENDOR -

18-8 Stainless Steel Hi Collar Split Lock Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessPrice (inc. VAT)
A1NY121/4"0.260"0.363"0.078"£11.10
BU51390.025.00011/4"0.252"0.363"0.078"£6.66
C1NY143/8"0.385"0.55"0.125"£35.86
DU51390.037.00013/8"0.377"0.55"0.125"£13.49
E1NY135/16"0.322"0.457"0.093"£19.70
FU51390.031.00015/16"0.314"0.457"0.093"£11.18
SUPER-STRUT -

E148 Series Lock Washer

StyleModelInside Dia.MaterialOutside Dia.Thickness
AE148-1/2SS316-Stainless Steel--
RFQ
BE148-3/8-Steel--
RFQ
BE148-1/2-Steel--
RFQ
AE148-3/8SS6-Stainless Steel--
RFQ
AE148-3/8SS-Stainless Steel--
RFQ
AE148-1/2SS-Stainless Steel--
RFQ
AE148-5/16SS316-Stainless Steel-0.078"
RFQ
BE148-1/40.260"Steel0.487"0.062"
RFQ
AE148-1/4SS60.260"Stainless Steel0.487"0.062"
RFQ
AE148-1/4SS0.260"Stainless Steel0.487"0.062"
RFQ
BE148-5/160.325"Steel0.586"0.078"
RFQ
BE148-5/80.641"Steel1.073"0.156"
RFQ
AE148-5/8SS60.641"Stainless Steel1.073"0.156"
RFQ
AE148-1/2SS61/2"Stainless Steel--
RFQ
StyleModelBolt SizeInside Dia.
A50SWBOX1/2"0.518"
RFQ
A25SWBOX1/4"0.262"
RFQ
A38SWBOX3/8"0.39"
RFQ
A62SWBOX5/8"0.65£5.98
A31SWBOX5/16"0.322"
RFQ
ZSI-FOSTER -

Z Clamp Lock Washers

StyleModelPrice (inc. VAT)
AHW-1£7.06
AHW-3£6.70
APPROVED VENDOR -

Split Lock Washer, Steel, Heavy Duty

StyleModelColorFinishFits Bolt SizesInside Dia.Outside Dia.SizeThicknessThickness TolerancePrice (inc. VAT)
AU37183.011.0001-Zinc#40.114"0.223"-0.031"-£4.15
BU37183.012.0001-Zinc#50.127"0.252"-0.04"-£5.30
CU37183.019.0001-Zinc#100.193"0.35"-0.056"-£4.14
DU37183.013.0001-Zinc#60.141"0.266"-0.04"-£5.57
EU37183.009.0001-Zinc#30.101"0.209"-0.031"-£15.22
FU37180.011.0001-Plain#40.114"0.223"-0.031"-£3.41
GU37180.013.0001-Plain#60.141"0.266"-0.04"-£4.71
HU37180.012.0001-Plain#50.127"0.252"-0.04"-£4.54
IU37180.300.0001-Plain3"3.012"4.16"3"0.526"-£128.47
JU37180.031.0001-Plain5/16"0.314"0.593"5/16"0.097"-£4.73
KU37180.025.0001-Plain1/4"0.252"0.489"1/4"0.077"-£3.18
LU37180.021.0001-Plain#120.220"0.391"-0.063"-£9.03
MU37180.019.0001-Plain#100.193"0.35"-0.056"-£4.05
NU37180.016.0001-Plain#80.167"0.307"-0.047"-£5.30
OU37183.031.0001-Zinc5/16"0.314"0.593"5/16"0.097"-£5.44
PU37183.025.0001-Zinc1/4"0.252"0.489"1/4"0.077"-£3.10
QU37183.021.0001-Zinc#120.220"0.391"-0.063"-£12.87
RU37183.016.0001-Zinc#80.167"0.307"-0.047"-£7.38
SDHL150N0000P-PK10BlackPlain1.5"1.504"2.491"-0.458"+0.020"£109.44
TDHL113N0000P-PK10BlackPlain1.125"1.129"1.903"-0.345"+0.020"£58.70
UDHL050N0000P-PK50BlackPlain1/2"0.502"0.879"-0.151"+0.010"£11.22
VDHL038N0000Z-PK100SilverZinc3/8"0.377"0.688"-0.115"+0.010"£21.43
WDHL063N0000Z-PK25SilverZinc5/8"0.628"1.087"-0.189"+0.010"£22.39
APPROVED VENDOR -

Split Lock Washer, Steel, Hi Collar

StyleModelFinishFits Bolt SizesInside Dia.Outside Dia.Rockwell HardnessSizeThicknessPrice (inc. VAT)
AU37200.011.0001Plain#40.114"0.173"--0.022"£2.56
BU37200.043.0001Plain7/16"0.440"0.644"C46-0.14"£1.43
CM37200.240.0001PlainM2424.5mm35.9mmC38 to C46-5mm£6.94
DM37200.120.0001PlainM1212.2mm18mmC44 to C51-2.5mm£6.04
EU37200.150.0001Plain1.5"1.504"2.159"C46-0.375"£48.05
FU37200.100.0001Plain1"1.003"1.478"C46-0.25"£6.42
GU37200.075.0001Plain3/4"0.753"1.105"C46-0.218"£2.68
HU37200.050.0001Plain1/2"0.502"0.733"C46-0.172"£2.58
IU37200.016.0001Plain#80.167"0.267"--0.047"£3.09
JM37200.200.0001PlainM2020.2mm30.6mmC38 to C46-4.5mm£5.71
KU37200.013.0001Plain#60.141"0.216"--0.03"£4.46
LM37200.160.0001PlainM1616.2mm24.4mmC44 to C51-3.5mm£4.85
MM37200.140.0001PlainM1414.2mm21.1mmC38 to C46-3mm£9.55
NU37200.025.0001Plain1/4"0.252"0.363"-1/4"0.078"£1.62
OU37200.037.0001Plain3/8"0.377"0.55"C46-0.125"£2.30
PU37200.031.0001Plain5/16"0.314"0.457"-5/16"0.093"£2.24
QM37200.300.0001PlainM3030.5mm44.1mmC38 to C46-6mm£10.18
RU37200.012.0001Plain#50.127"0.202"--0.03"£2.34
SU37200.019.0001Plain#100.193"0.294"--0.047"£2.31
TU37200.062.0001Plain5/8"0.628"0.917"C46-0.203"£1.97
UU37200.087.0001Plain7/8"0.878"1.291"C46-0.234"£10.56
VU37200.125.0001Plain1.25"1.254"1.79"C46-0.313"£4.46
WM37220.120.0001ZincM1212.2mm18mmC38 to C46-2.5mm£5.67
XM37220.160.0001ZincM1616.2mm24.4mmC38 to C46-3.5mm£5.05
YM37220.040.0001ZincM44.1mm7mmC38 to C46-1.2mm£6.45
APPROVED VENDOR -

Steel Standard Split Lock Washer

StyleModelFinishFits Bolt SizesInside Dia.Outside Dia.Rockwell HardnessSizeThicknessPrice (inc. VAT)
AU37025.037.0001Galvanized3/8"0.377"0.68"C35-0.094"£3.63
BU37025.075.0001Galvanized3/4"0.753"1.265"C32-0.188"£3.69
CU37025.112.0001Galvanized1.125"1.129"1.847"C38 to C46-0.281"£8.02
DU37025.050.0001Galvanized1/2"0.502"0.869"C38 to C46-0.125"£3.21
EU37025.100.0001Galvanized1"1.003"1.656"C38 to C46-0.25"£4.32
FU37025.087.0001Galvanized7/8"0.878"1.459"C38 to C46-0.219"£3.26
GU37025.062.0001Galvanized5/8"0.628"1.073"C38 to C46-0.156"£2.42
HU37025.150.0001Hot Dipped Galvanized1.5"1.504"2.419"-1.5"0.375"£16.83
IM37000.300.0001PlainM3030.5mm48.2mmC38 to C46-6mm£6.84
JU37000.037.0001Plain3/8"0.377"0.68"C38 to C46-0.094"£2.88
KU37000.200.0001Plain2"2.008"2.936"-2"0.422"£17.28
LU37000.012.0001Plain#50.127"0.236"--0.031"£2.20
MM37000.140.0001PlainM1414.2mm24.1mmC44 to C51-3mm£4.94
NM37000.160.0001PlainM1616.2mm27.4mmC44 to C51-3.5mm£3.98
MM37000.200.0001PlainM2020.2mm33.6mmC44 to C51-4mm£2.90
OM37000.360.0001PlainM3636.5mm58.2mmC38 to C46-6mm£6.35
PU37000.019.0001Plain#100.193"0.334"--0.047"£1.75
QU37000.175.0001Plain1.75"1.758"2.679"-1.75mm0.389"£47.34
RU37000.250.0001Plain2.5"2.512"3.471"-2.5"0.44"£78.64
SU37000.050.0001Plain1/2"0.502"0.869"C38 to C46-0.125"£2.92
TM37000.220.0001PlainM2222.5mm35.9mmC38 to C46-4mm£6.45
UU37000.056.0001Plain9/16"0.564"0.965"C38 to C46-0.141"£2.73
VU37000.062.0001Plain5/8"0.628"1.073"C38 to C46-0.156"£1.85
WU37000.075.0001Plain3/4"0.753"1.265"C38 to C46-0.188"£3.36
XU37000.011.0001Plain#40.114"0.209"--0.025"£1.07
StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness TolerancePrice (inc. VAT)
A6DZC4#60.150"0.32"0.022"-0.006"£6.42
A6DZC5#80.176"0.381"0.023"-0.005"£3.93
StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessPrice (inc. VAT)
AM51460.100.0001M1010.5mm18mm0.9 to 2.7mm£4.37
AM51460.160.0001M1617mm26mm1.2 to 3.6mm£2.68
APPROVED VENDOR -

316 Stainless Steel External Tooth, Type A Lock Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessPrice (inc. VAT)
AU55460.009.0001#30.102"0.23"0.013"£25.96
BU55460.011.0001#40.115"0.245"0.012"£9.72
CU55460.012.0001#50.129"0.27"0.014"£57.35
DU55460.013.0001#60.141"0.305"0.016"£70.35
EU55460.016.0001#80.168"0.365"0.018"£8.65
FU55460.019.0001#100.195"0.395"0.018"£12.95
APPROVED VENDOR -

410 Stainless Steel External Tooth Lock Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness TolerancePrice (inc. VAT)
A1NY46#40.123"0.26"0.018"0.012-0.018"£4.74
B1NY48#80.176"0.381"0.023"0.018-0.023"£0.40
CU53460.037.00013/8"0.398"0.694"0.04"0.032-0.04"£12.03
APPROVED VENDOR -

Carbon Steel Internal Tooth, Type A Lock Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessPrice (inc. VAT)
AU37480.008.0001#20.095"0.2"0.016"£1.39
BU37480.011.0001#40.123"0.27"0.018"£0.72
CU37480.013.0001#60.150"0.295"0.022"£0.92
DU37480.016.0001#80.176"0.34"0.023"£0.92
EU37480.019.0001#100.204"0.381"0.024"£1.06
FU37480.021.0001#120.231"0.41"0.027"£1.89
GU37480.025.00011/4"0.267"0.478"0.028"£5.63
HU37480.031.00015/16"0.332"0.61"0.034"£2.98
StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessPrice (inc. VAT)
A6FY19M22.2mm4.5"0.3 to 0.6mm£6.61
A6FY21M2.52.7mm5.5"0.4 to 0.8mm£6.97
A6FY23M2.62.8mm5.5"0.4 to 0.8mm£5.87
A6FY26M3.53.7mm7mm0.5 to 1mm£4.58
A6FY41M1415mm24mm1 to 2mm£41.20
A6FY43M1617mm26mm1.2 to 2.4mm£45.65
A6FY45M1819mm30mm1.4 to 2.8mm£36.12
A6FY47M2021mm33mm1.4 to 2.8mm£44.94
12...45

Lock Washers

Lock washers are used for creating tight assemblies with ordinary fasteners. Raptor Supplies offers a wide range of lock washers from brands like Unistrut, Vulcan-Hart, Midwest Acorn Nut, Fabory, Super-Strut, Metric Blue, Woodhead, Foreverbolt, Cooper B-Line, Disc-Lock and Armor Coat. These lock washers grab adjoining materials for preventing loosening due to vibration.

Frequently Asked Questions

How to install a lock washer?

  • Place the lock washer between the threaded fastener (like a nut) and the screw / bolt head.
  • Make sure that the lock washer press against the fastener & other adjacent surfaces and forms a tight connection. Press the fastener down to lock the grooves of a tooth lock washer with the grooves of the nut.
  • Use a wrench or ratchet to tighten the nut or threaded fastener.
  • Make sure that the teeth of the tooth lock washer are covered completely by the nut / fastener head, or that the split lock washer is slightly out of alignment to indicate tension on the threaded fastener. Users may loosen the nut / threaded fastener to adjust the washer if it is not operating correctly.

How to remove a lock washer?

  • After the operation is completed, the washer can be removed by simply removing the nut / threaded fastener that is holding the washer in place using a vise-grip or pipe wrench.
  • Use a flat screwdriver to pry the lock washer off. When removing a split washer, the screwdriver head should be placed inside the split or beneath the washer and pushed. When removing a washer having teeth, the screwdriver head should be placed under a tooth and pushed up, repeating the procedure with more teeth if required. For other lock washer types, the screwdriver head can be placed below the washer and pushed up. The washer may break during removal, depending on the amount of pressure being applied.
  • If the lock washer does not budge, use penetrating oil and repeat the previous step.
  • Some lock washers can be used multiple times easily. Other washers (split lock) can be used only 1 or 2 times. Users should not reuse a split lock washer or other damaged washers. Do not use old washers in high-stress joint applications.

What is the difference between lock washers and flat washers?

Flat washers are suitable for increasing the surface area and distributing the applied force when tightening the fastener. They can be used on the fastener's bolt & nut sides, or used as spacers where using a bolt may not be suitable.
Lock washers create tension during tightening to prevent the loosening of nuts. They are generally used on the fastener's nut side for applications involving vibrations.

Which type of lock washers has the highest vibration resistance?

Split Lock, Tooth Lock, Diamond-Coated Lock, Spring Lock and Wedge Lock type lock washers have vibration resistance in ascending or increasing order.

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