Flat Washers

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Flat washers are used with threaded fasteners for distributing the load uniformly and reducing frictional losses during screw tightening. These units are used for providing spacing and...Read more

StyleModelBolt SizeInside Dia.
A50FWBOX1-1/16"1/2"
RFQ
A25FWBOX1/4"1/4"
RFQ
A38FWBOX3/8"0.421"
RFQ
MICRO PLASTICS -

Flat Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessPrice (inc. VAT)
A16FW002062#20.090"0.25"0.062"£3.00
B16FW002032#20.094"0.25"0.031"£4.17
C17W01825#20.094"0.188"0.02"£4.38
D17W02190#30.104"0.22"0.031"£3.85
E16FW004032#40.120"0.22"0.031"£3.61
F16FW004062#40.115"0.25"0.062"£3.50
G17W01906#40.112"0.206"0.053"£5.07
H17W02813#40.120"0.28"0.031"£4.17
I17W03904#50.141"0.406"0.04"£4.83
J17W02851#50.130"0.285"0.062"£3.83
K17W03130#60.162"0.312"0.062"£4.53
L16FW006032#60.140"0.312"0.031"£3.57
M17W04400#60.156"0.438"0.04"£5.07
N16FW006062#60.140"0.313"0.062"£4.38
O17W05008#80.188"0.5"0.04"£6.98
P16FW008062#80.173"0.375"0.062"£5.22
Q17W04081#80.177"0.408"0.062"£4.87
R17W04373#100.195"0.437"0.031"£4.78
S17W04601#100.200"0.45"0.031"£5.57
T17W05623#100.203"0.562"0.04"£6.45
U17W04502#120.240"0.465"0.015"£6.03
V17W250011"1.062"2.5"0.16"£9.59
W17W125041/2"0.516"1.25"0.062"£5.18
X16FW5000621/2"0.505"0.75"0.062"£8.19
Y17W068711/4"0.260"0.687"0.062"£9.31
PS DOORS -

Flat Washers

StyleModelFinishMaterialSize
A512986--5/16" x 1 1/4"
RFQ
A501949Hot Dipped GalvanizedSteel5/16"
RFQ
A508053Mill FinishStainless Steel5/16"
RFQ
A501945Mill FinishStainless Steel3/8"
RFQ
A501948Mill FinishStainless Steel5/16"
RFQ
A500296Mill FinishStainless Steel3/8"
RFQ
A501947Powder Coated YellowSteel3/8"
RFQ
A501955Powder Coated YellowSteel0.4" x 1" x 0.06"
RFQ
A501939Powder Coated YellowSteel1/4"
RFQ
A508032Stainless SteelSteel1/4"
RFQ
APPROVED VENDOR -

Flat Washer Thick Stainless Steel

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessPrice (inc. VAT)
AU51410.006.0001#01/16"1/8"0.016"£28.77
BU51410.007.0001#13/32"5/32"0.016"£24.49
CU51410.008.0001#23/32"3/16"0.031"£25.62
DU51410.011.0001#41/8"1/4"0.063"£86.90
EU51410.011.0003#41/8"5/16"0.078"£39.50
FU51410.013.0004#65/32"3/8"0.078"£43.30
GU51410.013.0002#65/32"5/16"0.063"£44.67
HU51410.016.0003#83/16"7/16"0.078"£34.29
IU51410.016.0001#85/32"3/8"0.063"£16.35
JU51410.019.0001#103/16"1/2"0.094"£5.17
KU51410.100.00011"1.031"2"0.188"£7.91
LU51410.050.00031/2"17/32"1.125"0.125"£12.60
MU51410.025.00011/4"9/32"1/2"0.078"£61.34
NU51410.025.00031/4"9/32"5/8"0.125"£6.61
OU51410.075.00033/4"25/32"1.625"0.125"£20.23
PU51410.037.00043/8"13/32"7/8"0.125"£14.90
QU51410.037.00023/8"13/32"3/4"0.094"£7.21
RU51410.062.00035/8"61/93"1.375"0.125"£17.54
SU51410.031.00035/16"11/32"11/16"0.094"£243.43
TU51410.031.00015/16"11/32"5/8"0.094"£4.26
UU51410.031.00055/16"11/32"3/4"0.094"£7.37
VU51410.031.00065/16"11/32"3/4"0.125"£8.70
WU51410.043.00037/16"15/32"1"0.125"£15.18
COOPER B-LINE -

Washers

ANVIL -

Flat Washers

StyleModelPrice (inc. VAT)
A0500364682£0.50
RFQ
A0500364708£1.85
RFQ
A0500364674£0.30
RFQ
A0500364690£0.86
RFQ
AFIG AS 209-
RFQ
A0500364716£3.09
RFQ
GRUVLOK -

7013 Seal Rings

StyleModelPrice (inc. VAT)
A0390081102£101.41
RFQ
A0390081104£118.19
RFQ
A0390081116£482.10
RFQ
A0390081106£137.29
RFQ
A0390081114£330.77
RFQ
A0390081100£95.95
RFQ
A0390081110£189.18
RFQ
A0390081108£165.77
RFQ
A0390081112£238.72
RFQ
THOMAS & BETTS -

Piercing Washers

StyleModelPrice (inc. VAT)
ARJ757£13.80
RFQ
ARJ9711£13.03
RFQ
ARJ9731£13.03
RFQ
ARJ9751£13.80
RFQ
BRM9731£22.53
RFQ
THOMAS & BETTS -

Reducer Washers

StyleModelPrice (inc. VAT)
AB71UF£1.55
RFQ
ARB877U£2.39
RFQ
ARJ737NP£16.57
RFQ
ARG9751£9.28
RFQ
ARG9731£8.76
RFQ
ARG9711UF£12.13
RFQ
ARG9711£8.76
RFQ
ARF10731U£7.89
RFQ
ARC363U£2.19
RFQ
ARB873U£1.93
RFQ
AB75TB£1.06
RFQ
ARB873NP£1.02
RFQ
ARB1333UNP£1.69
RFQ
AC72M£1.08
RFQ
ABC79NP£1.14
RFQ
ABC72NP£1.12
RFQ
AB87NPM£0.70
RFQ
AB86NP£0.44
RFQ
ARZ83NP£3.01
RFQ
StyleModelPrice (inc. VAT)
A401£22.73
RFQ
A402£33.53
RFQ
A408£201.33
RFQ
A409£268.74
RFQ
COOPER B-LINE -

Washer Splice Kits

COOPER B-LINE -

B450 Series U Washers

COOPER B-LINE -

B3248 Steel Washer Plates

COOPER B-LINE -

Flat Fender Washers

COOPER B-LINE -

Fender Washers

COOPER B-LINE -

Flat Washers

StyleModelItem
ABFVFW1Flat Washer
RFQ
ABFVFW1/2Flat Washer
RFQ
B5/16 FW NYL BOXEDFlat Washer
RFQ
B3/8 FW YZN BOXEDFlat Washer
RFQ
B3/8 FW NYL BOXEDFlat Washer
RFQ
B1/4 FW YZN BOXEDFlat Washer
RFQ
C1/2FWZNFlat Washer
RFQ
B5/16 FW YZN BOXEDFlat Washer
RFQ
C3/8FWZNFlat Washer
RFQ
B3/8 FW SB BOXEDFlat Washer
RFQ
C5/8FWZNFlat Washer
RFQ
ABFVFW5/8Flat Washer
RFQ
ABFVFW3/8Flat Washer
RFQ
ABFVFW3/4Flat Washer
RFQ
B5/8 FW YZN BOXEDFlat Washer
RFQ
B5/16 FW SB BOXEDFlat Washer
RFQ
C1/4FWZNFlat Washer
RFQ
B1/4 FW NYL BOXEDFlat Washer
RFQ
B1/2 FW YZN BOXEDFlat Washer
RFQ
CWSHR,FLT 1/2 SS4Washer
RFQ
CWSHR,FLT 3/8 SS4Washer
RFQ
CWSHR,FLT 3/8 SS6 48/BAGWasher
RFQ
CWSHR,FLT 1/4 SS4Washer
RFQ
CWSHR,FLT 1/2 SS6Washer
RFQ
CWSHR,FLT 1/4 SS6Washer
RFQ
TE-CO -

Washer Assemblies

StyleModelColorFits Bolt SizesInside Dia.MaterialOutside Dia.Rockwell HardnessSizeThicknessPrice (inc. VAT)
A42702Black5/16, 3/8"13/32"Steel7/8"85 to 90 on 15N Scale-1/4"£3.42
B42703Black7/16, 1/2"17/32"Steel1.125"85 to 90 on 15N Scale-5/16£5.22
C42706Black7/8"15/16"Steel1.75"85 to 90 on 15N Scale7/8"3/8"£11.64
D42707Black1"1-1/16"Steel2"85 to 90 on 15N Scale1"1/2"£12.49
E42710Black1.5"1.500"Steel2.875"85 to 90 on 15N Scale1 1/2 Lbs.1/2"£40.29
F42704Black5/8"21/32"Steel1.375"85 to 90 on 15N Scale5/8"5/16£6.56
G42705Black3/4"25/32"Steel1.625"85 to 90 on 15N Scale3/4"3/8"£8.70
H42708Black1.125"1.200"Steel2.25"85 to 90 on 15N Scale1 1/8"1/2"£23.22
I47705Plain3/4"25/32"303 Stainless Steel1.625"27 on 15N Scale3/4"3/8"£30.98
J47702Plain3/8"13/32"303 Stainless Steel7/8"27 on 15N Scale3/8"1/4"£15.04
GORLITZ -

Washers

StyleModelInside Dia.Price (inc. VAT)
A325-£10.27
RFQ
A326-£12.63
RFQ
A7051"£6.85
RFQ
A15375/8"£1.63
RFQ
TE-CO -

Flat Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.SizeThicknessPrice (inc. VAT)
A42674#83/16"7/16"-5/64£0.19
B42660#1013/64"1/2"-3/32"£0.25
C426701.125"1.150"2.25"1 1/8"7/32"£20.01
D426673/4"25/32"1.625"3/4"5/32£1.26
E4266313/8"13/32"7/8"3/8"1/8"£16.45
F426665/8"21/32"1.375"5/8"1/8"£16.10
ACCURATE MANUFACTURED PRODUCTS GROUP -

Flat Washers

StyleModelFits Bolt SizesSystem of MeasurementThicknessThickness ToleranceWasher Inside Dia.Washer O.D.Price (inc. VAT)
AWAS407#10#10Inch0.046875"+/-0.015"7/32"1/2"£11.95
AWAS407121/2"Inch0.0625"+/-0.015"17/32"1 1/16"£19.72
AWAS407141/4"Inch0.0625"+/-0.015"9/32"5/8"£17.09
AWAS407383/8"Inch0.0625"+/-0.015"13/32"13/16"£12.35
AWAS407515/16"Inch0.0625"+/-0.015"11/32"11/16"£11.95
AWAS407M5M5Metric1 mm+/-0.10mm5.3 mm10 mm£13.27
RFQ
AWAS407M6M6Metric1.6 mm+/-0.20mm6.4 mm12 mm£16.73
RFQ
AWAS407M8M8Metric1.6 mm+/-0.20mm8.4 mm16 mm£18.27
RFQ
AWAS407M10M10Metric2 mm+/-0.20mm10.5 mm20 mm£21.38
AWAS407M12M12Metric2.5 mm+/-0.20mm13.0 mm24 mm£25.26
RFQ
FABORY -

Flat Washers

StyleModelFastener FinishFinishFits Bolt SizesSystem of MeasurementThicknessWasher Inside Dia.Washer Material GradeWasher O.D.Price (inc. VAT)
AB38157.150.0001Hot Dipped GalvanizedHot Dipped Galvanized1 1/2Inch0.18"1 5/8"Low Carbon3 1/2"£172.47
BU38157.137.0001Hot Dipped GalvanizedHot Dipped Galvanized1 3/8Inch0.18"1 1/2"-3 1/4"£13.15
CB38157.043.0001Hot Dipped GalvanizedHot Dipped Galvanized7/16"Inch0.083"1/2"Low Carbon1 1/4"£630.26
DB38157.031.0001Hot Dipped GalvanizedHot Dipped Galvanized5/16"Inch0.083"3/8"Low Carbon7/8"£507.91
EB38157.100.0001Hot Dipped GalvanizedHot Dipped Galvanized1"Inch0.165"1 1/16"Low Carbon2 1/2"£149.52
FB38157.056.0001Hot Dipped GalvanizedHot Dipped Galvanized9/16"Inch0.109"5/8"Low Carbon1 15/32"£459.70
GB38157.050.0001Hot Dipped GalvanizedHot Dipped Galvanized1/2"Inch0.109"9/16"Low Carbon1 3/8"£149.95
HB38157.087.0001Hot Dipped GalvanizedHot Dipped Galvanized7/8"Inch0.165"15/16"Low Carbon2 1/4"£177.40
IU38157.056.0001Hot Dipped GalvanizedHot Dipped Galvanized9/16"Inch0.109"5/8"-1 15/32"£8.33
JB38157.075.0001Hot Dipped GalvanizedHot Dipped Galvanized3/4"Inch0.148"13/16"Low Carbon2"£427.11
KB38157.037.0001Hot Dipped GalvanizedHot Dipped Galvanized3/8"Inch0.083"7/16"Low Carbon1"£173.86
LB38157.125.0001Hot Dipped GalvanizedHot Dipped Galvanized1 1/4Inch0.165"1 3/8"Low Carbon3"£287.98
MB38157.025.0001Hot Dipped GalvanizedHot Dipped Galvanized1/4"Inch0.065"5/16"Low Carbon47/64"£342.84
NB38157.062.0001Hot Dipped GalvanizedHot Dipped Galvanized5/8"Inch0.134"11/16"Low Carbon1 3/4"£298.51
OB38157.137.0001Hot Dipped GalvanizedHot Dipped Galvanized1 3/8Inch0.18"1 1/2"Low Carbon3 1/4"£410.26
PB38157.112.0001Hot Dipped GalvanizedHot Dipped Galvanized1 1/8Inch0.165"1 1/4"Low Carbon2 3/4"£515.58
QB55420.100.0001PlainPlain1"Inch0.165"1 1/16"3162 1/2"£389.92
RB55420.050.0001PlainPlain1/2"Inch0.109"9/16"3161 3/8"£535.90
SB55410.043.0002PlainPlain7/16"Inch0.063"1/2"3161 1/4"£771.60
TB51410.011.0002PlainPlain#4Inch0.031"1/8"18-85/16"£2,426.78
UB55410.031.0001PlainPlain5/16"Inch0.047"11/32"31611/16"£601.93
VB55410.037.0001PlainPlain3/8"Inch0.047"3/8"3167/8"£335.35
WL38100.140.0001PlainPlainM14Metric2.5 mm15.0 mm140HV28 mm£163.43
XB55410.019.0001PlainPlain#10Inch0.031"3/16"3167/16"£614.23
YB38402.300.0001PlainPlain3"Inch0.284"3 1/8"Low Carbon5 1/2"£179.29
123...7

Flat Washers

Flat washers are used with threaded fasteners for distributing the load uniformly and reducing frictional losses during screw tightening. These units are used for providing spacing and electrical insulation in control boxes. Raptor Supplies offers a wide array of flat washers from Accurate Mfd Products, Apollo, Armor Coat, C. Sherman Johnson, Dynaform, Earnest, Fabory, Foreverbolt, Grainger, Master Products, Metric Blue, TE-CO and Micro Plastics.

Frequently Asked Questions

What is the difference between flat washers and lock washers?

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

How to install a flat washer?

  • Place the flat washer between the threaded fastener (like a nut) and the screw / bolt head.
  • Make sure that the washer presses against the fastener & other adjacent surfaces to form a tight connection. Press the fastener down to lock the grooves of a serrated washer with the grooves of the nut.
  • Use a wrench or ratchet to tighten the nut / threaded fastener.
  • Ensure that the teeth of a serrated washer are covered completely by the nut / fastener head, or that a split washer is slightly out of alignment. This indicates 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 flat washer?

  • Simply remove the nut / threaded fastener that is holding the washer in place using a vice-grip or pipe wrench.
  • Use a flat screwdriver to pry a 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 flat 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 flat washer does not budge, use penetrating oil and repeat the previous step.
  • Some flat 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 flat washer or other damaged washers. Do not use old washers in high-stress joint applications.

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