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

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"£24.58
BU51410.007.0001#13/32"5/32"0.016"£22.13
CU51410.008.0001#23/32"3/16"0.031"£21.73
DU51410.011.0003#41/8"5/16"0.078"£44.99
EU51410.011.0001#41/8"1/4"0.063"£78.54
FU51410.013.0004#65/32"3/8"0.078"£39.13
GU51410.013.0002#65/32"5/16"0.063"£37.88
HU51410.016.0001#85/32"3/8"0.063"£14.78
IU51410.016.0003#83/16"7/16"0.078"£30.99
JU51410.019.0001#103/16"1/2"0.094"£4.67
KU51410.100.00011"1.031"2"0.188"£10.99
LU51410.050.00031/2"17/32"1.125"0.125"£11.39
MU51410.025.00031/4"9/32"5/8"0.125"£5.97
NU51410.025.00011/4"9/32"1/2"0.078"£52.02
OU51410.075.00033/4"25/32"1.625"0.125"£18.28
PU51410.037.00043/8"13/32"7/8"0.125"£13.46
QU51410.037.00023/8"13/32"3/4"0.094"£6.52
RU51410.062.00035/8"61/93"1.375"0.125"£15.86
SU51410.031.00065/16"11/32"3/4"0.125"£7.87
TU51410.031.00035/16"11/32"11/16"0.094"£206.43
UU51410.031.00015/16"11/32"5/8"0.094"£5.29
VU51410.031.00055/16"11/32"3/4"0.094"£6.66
WU51410.043.00037/16"15/32"1"0.125"£13.71
APPROVED VENDOR -

Flat Washer Wide Stainless Steel

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessPrice (inc. VAT)
AU51420.100.00011"1-1/16"2.5"0.165"£12.13
BU51420.150.00011.5"1.625"3.5"0.18"£22.45
CU51420.125.00011.25"1.375"3"0.165"£103.38
DU51420.112.00011.125"1.25"2.75"0.165"£10.20
EU51420.056.00019/16"5/8"1 15/32"0.109"£13.46
TE-CO -

Flat Washers, Black Oxide

StyleModelFits Bolt SizesInside Dia.ItemMaterialOutside Dia.SizeThicknessPrice (inc. VAT)
A42612#41/8"Flat WasherSteel5/16"-5/64£0.06
B42614#83/16"Flat WasherSteel7/16"-5/64£0.03
C42600#1013/64"Flat WasherSteel1/2"-3/32"-
RFQ
D426091"1"Flat WasherSteel2"1"3/16"£15.29
E426271"1.030"Heavy Duty WasherHardened Steel2"1"9/32"-
RFQ
F426111.25"1.300"Flat WasherSteel2.5"1 1/4 Lbs.9/32"-
RFQ
G426101.125"1"Flat WasherSteel2.25"1 1/8"7/32"-
RFQ
H426051/2"17/32"Flat WasherSteel1.125"1/2"1/8"£14.73
I426191/4"9/32"Heavy Duty WasherHardened Steel5/8"1/4"3/16"£0.13
J426073/4"25/32"Flat WasherSteel1.625"3/4"5/32£1.46
K426213/8"13/32"Heavy Duty WasherHardened Steel7/8"3/8"3/16"-
RFQ
L426205/16"11/32"Heavy Duty WasherHardened Steel3/4"5/16"3/16"£14.57
M426267/8"29/32"Heavy Duty WasherHardened Steel1.75"7/8"1/4"-
RFQ
N426047/16"15/32"Flat WasherSteel1"7/16"1/8"£0.11
APPROVED VENDOR -

Thick Fender Washer, Steel

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness TolerancePrice (inc. VAT)
AZ9678#107/32"1"1/8"+/-0.013"£12.17
BZ9679#107/32"1"1/4"+/-0.025"£16.50
CZ96741"1-1/16"3.25"1/4"+/-0.025"£10.11
DZ96961"1-1/16"3.5"1/8"+/-0.013"£7.82
EZ96971"1-1/16"3.5"1/4"+/-0.025"£7.15
FZ96771"1-1/16"3.5"3/8"+/-0.037"£30.53
GZ96751.25"1.375"4"1/2"+/-0.050"£35.11
HZ96891/2"17/32"2"1/4"+/-0.025"£16.91
IZ96881/2"17/32"2"1/8"+/-0.013"£14.78
JZ96701/2"9/16"3"1/4"+/-0.025"£19.15
KZ96811/4"9/32"1.5"1/4"+/-0.025"£15.89
LZ96801/4"9/32"1.5"1/8"+/-0.013"£13.79
MZ96983/4"13/16"3"3/8"+/-0.037"£11.64
NZ96923/4"13/16"3"1/8"+/-0.013"£17.61
OZ96933/4"13/16"3"1/4"+/-0.025"£18.79
PZ96853/8"13/32"2"1/4"+/-0.025"£44.63
QZ96843/8"13/32"2"1/8"+/-0.013"£13.41
RZ96905/8"11/16"2.5"1/8"+/-0.013"£16.83
SZ96715/8"11/16"3"1/4"+/-0.025"£18.35
TZ96915/8"11/16"2.5"1/4"+/-0.025"£17.00
UZ96825/16"11/32"2"1/8"+/-0.013"£11.49
VZ96835/16"11/32"2"1/4"+/-0.025"£38.47
WZ96947/8"15/16"3.25"1/8"+/-0.013"£18.61
XZ96737/8"15/16"3"1/4"+/-0.025"£10.71
YZ96957/8"15/16"3.25"1/4"+/-0.025"£24.06
StyleModelFinishMaterialWidth
AC-781-1/2-SS-Stainless Steel3"
RFQ
AC781-5/8SS6-Stainless Steel3"
RFQ
AC781-3/4BBlackSteel-
RFQ
AC781-1/2BBlackSteel-
RFQ
AC781-1BBlackSteel4"
RFQ
AC781-3/8BBlackSteel-
RFQ
AC781-3/8EGElectro-GalvanizedSteel-
RFQ
AC781-1/2-EGElectro-GalvanizedSteel-
RFQ
AC781-5/8EGElectro-GalvanizedSteel3"
RFQ
SUPER-STRUT -

E147 Series Flat Washer

StyleModelColorFinishInside Dia.MaterialOutside Dia.ThicknessPrice (inc. VAT)
AE147-1/4SS6--1/4"Stainless Steel---
RFQ
AE147-3/8SS6--0.438"Stainless Steel1"0.104"-
RFQ
AE147-1/2SS6--1/2"Stainless Steel---
RFQ
BE147-1/2-Gold Galvanized0.562"Steel1.375"0.132"-
RFQ
BE147-1/4-Gold Galvanized-Steel---
RFQ
AE147-3/8SS--0.438"Stainless Steel1"0.104"-
RFQ
AE147-1/2-SS--0.562"Stainless Steel1.375"0.132"-
RFQ
CE147 3/8GoldGold Galvanized-Steel-1/4"£52.34
BE147-7/8SilverElectro-Galvanized0.938"Steel2.25"0.192"-
RFQ
BE147-5/8SilverElectro-Galvanized0.688"Steel1.75"0.16"-
RFQ
BE147-3/4SilverElectro-Galvanized0.812"Steel2"0.177"-
RFQ
AE147-5/8EGSilverElectro-Galvanized0.688"Steel1.75"0.16"-
RFQ
AE147-5/16SS6Silver-0.375"Stainless Steel0.875"0.104"-
RFQ
AE147-1/4SSSilver-0.312"Stainless Steel0.734"0.8"-
RFQ
BE147-5/16SilverElectro-Galvanized0.375"Steel0.875"0.104"-
RFQ
StyleModelFinishInside Dia.Thickness
AZE147-1/4EGElectro-Galvanized5/16"0.08"
RFQ
AZE147-3/8EGGold Galvanized3/8"0.104"
RFQ
FABORY -

Plain Washers

StyleModelFastener FinishFinishFits Bolt SizesThicknessWasher Inside Dia.Washer Material GradeWasher O.D.Price (inc. VAT)
AL51532.100.0001PlainPlainM104 mm10.5 mmA225 mm£614.88
AL51532.080.0001PlainPlainM84 mm8.4 mmA221 mm-
RFQ
AL51532.120.0001PlainPlainM126 mm13.0 mmA230 mm£411.25
AL51532.060.0001PlainPlainM63 mm6.4 mmA217 mm£547.06
AL55420.070.0001PlainPlainM71.6 mm7.4 mmA414 mm£737.82
AL38430.050.0001Zinc PlatedZinc PlatedM52 mm5.3 mmLow Carbon15 mm£988.29
AL38430.220.0001Zinc PlatedZinc PlatedM228 mm23.0 mmLow Carbon50 mm£1,266.81
AL38430.100.0001Zinc PlatedZinc PlatedM104 mm10.5 mmLow Carbon25 mm£470.40
AL38250.100.0001Zinc PlatedZinc PlatedM101.6 mm10.5 mmLow Carbon18 mm£992.28
AL38250.040.0001Zinc PlatedZinc PlatedM40.5 mm4.3 mmLow Carbon8 mm£730.84
AL38430.160.0001Zinc PlatedZinc PlatedM166 mm17.0 mmLow Carbon40 mm£303.20
AL38430.030.0001Zinc PlatedZinc PlatedM31 mm3.2 mmLow Carbon9 mm£748.28
AL38250.200.0001Zinc PlatedZinc PlatedM203 mm21.0 mmLow Carbon34 mm£326.12
AL38430.040.0001Zinc PlatedZinc PlatedM41.6 mm4.3 mmLow Carbon12 mm£1,223.58
AL38430.300.0001Zinc PlatedZinc PlatedM301 mm31.0 mmLow Carbon68 mm£349.25
AL38250.020.0001Zinc PlatedZinc PlatedM20.3 mm2.2 mmLow Carbon4 1/2 mm£1,775.72
AL38430.120.0001Zinc PlatedZinc PlatedM126 mm13.0 mmLow Carbon30 mm£810.50
AL38250.030.0001Zinc PlatedZinc PlatedM30.5 mm3.2 mmLow Carbon6 mm£1,623.04
AL38250.140.0001Zinc PlatedZinc PlatedM142.5 mm15.0 mmLow Carbon24 mm£673.84
AL38430.270.0001Zinc PlatedZinc PlatedM271 mm28.0 mmLow Carbon60 mm£812.25
AL38430.080.0001Zinc PlatedZinc PlatedM84 mm8.4 mmLow Carbon21 mm£833.51
AL38250.180.0001Zinc PlatedZinc PlatedM182.5 mm19.0 mmLow Carbon30 mm£1,403.71
AL38250.080.0001Zinc PlatedZinc PlatedM81.6 mm8.4 mmLow Carbon15 mm£593.73
AL38430.240.0001Zinc PlatedZinc PlatedM241 mm25.0 mmLow Carbon50 mm£935.63
AL38430.060.0001Zinc PlatedZinc PlatedM63 mm6.4 mmLow Carbon17 mm£991.52
APPROVED VENDOR -

316 Stainless Steel SAE Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.Package WeightThicknessThickness TolerancePrice (inc. VAT)
AU55205.050.00011/2"17/32"1 1/16"0.460.098"+/-0.023"£10.59
BU55205.025.00011/4"9/32"5/8"0.220.065"+/-0.015"£3.52
CU55205.037.00013/8"13/32"13/16"0.370.065"+/-0.015"£4.59
DU55205.031.00015/16"11/32"11/16"0.250.065"+/-0.015"£5.97
APPROVED VENDOR -

A4 Stainless Steel Flat Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessTypePrice (inc. VAT)
AM55420.016.0001M1.61.7mm4"0.3mmMetric£1.54
BM55420.020.0001M22.2mm5"0.3mmStandard£1.88
CM55420.025.0001M2.52.7mm6mm0.5 mmStandard£1.50
DM55420.026.0001M2.62.8mm7mm0.5 mmStandard£1.22
EM55420.030.0001M33.2mm7mm0.5 mmStandard£1.36
FM55530.030.0001M33.2mm9mm0.8 mmMetric£1.37
GM55420.035.0001M3.53.7mm8mm0.5 mmStandard£1.34
HM55530.040.0001M44.3mm12 mm1 mmMetric£2.24
IM55420.040.0001M44.3mm9mm0.8 mmStandard£1.90
JM55420.050.0001M55.3mm10mm1 mmStandard£2.02
KM55530.050.0001M55.3mm15mm1.2mmMetric£3.62
LM55530.060.0001M66.4mm18mm1.6mmMetric£6.24
MM55530.080.0001M88.4mm24mm2mmMetric£10.95
NM55530.100.0001M1010.5mm30mm2.5mmMetric£24.58
OM55530.120.0001M1213mm37mm3mmMetric£20.45
PM55530.160.0001M1617mm50mm3mmMetric£13.65
QM55420.160.0001M1617mm30mm3mmStandard£5.05
RM55530.200.0001M2022mm60mm4mmMetric£15.45
SM55420.200.0001M2021mm37mm3mmStandard£4.37
TM55420.220.0001M2223mm39mm3mmMetric£3.00
UM55420.270.0001M2728mm50mm4mmMetric£7.25
VM55420.300.0001M3031mm56mm4mmStandard£10.88
WM55420.330.0001M3334mm60mm5mmMetric£6.24
XM55420.360.0001M3637mm66mm5mmStandard£9.34
APPROVED VENDOR -

Brass Flat Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness TolerancePrice (inc. VAT)
A6FA51M33.2mm7mm0.5 mm+/-0.05mm£4.17
A6FA53M44.3mm9mm0.8 mm+/-0.10mm£8.26
A6FA55M55.3mm10mm1 mm+/-0.10mm£10.23
A6FA57M66.4mm12 mm1.6mm+/-0.20mm£18.75
A6FA59M88.4mm16 mm1.6mm+/-0.20mm£15.35
A6FA61M1010.5mm20 mm2mm+/-0.20mm£14.39
A6FA63M1213mm24mm2.5mm+/-0.20mm£24.49
A6FA65M1617mm30mm3mm+/-0.30mm£22.30
COOPER B-LINE -

Fender Washers

COOPER B-LINE -

Flat Washers

StyleModelItem
A5/8 FW YZN BOXEDFlat Washer
RFQ
BBFVFW3/8Flat Washer
RFQ
BBFVFW1Flat Washer
RFQ
A5/16 FW NYL BOXEDFlat Washer
RFQ
A3/8 FW SB BOXEDFlat Washer
RFQ
A1/4 FW YZN BOXEDFlat Washer
RFQ
A1/4 FW NYL BOXEDFlat Washer
RFQ
A3/8 FW NYL BOXEDFlat Washer
RFQ
BBFVFW5/8Flat Washer
RFQ
BBFVFW3/4Flat Washer
RFQ
A1/2 FW YZN BOXEDFlat Washer
RFQ
C5/8FWZNFlat Washer
RFQ
A5/16 FW YZN BOXEDFlat Washer
RFQ
A5/16 FW SB BOXEDFlat Washer
RFQ
C3/8FWZNFlat Washer
RFQ
A3/8 FW YZN BOXEDFlat Washer
RFQ
C1/4FWZNFlat Washer
RFQ
C1/2FWZNFlat Washer
RFQ
BBFVFW1/2Flat Washer
RFQ
CWSHR,FLT 1/2 SS6Washer
RFQ
CWSHR,FLT 3/8 SS6 48/BAGWasher
RFQ
CWSHR,FLT 1/4 SS6Washer
RFQ
CWSHR,FLT 1/4 SS4Washer
RFQ
CWSHR,FLT 3/8 SS4Washer
RFQ
CWSHR,FLT 1/2 SS4Washer
RFQ
APPROVED VENDOR -

Through Hardened Steel Thick Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness TolerancePrice (inc. VAT)
AZ92791"1-1/16"2"1/4"+0.014/-0.015"£40.48
BZ92831.5"1-9/16"3"1/4"+0.014/-0.015"£8.01
CZ92811.25"1.375"2.5"1/4"+0.014/-0.015"£79.54
DZ92801.125"1.187"2.25"1/4"+0.014/-0.015"£52.67
EZ92821.375"1.437"2.75"1/4"+0.014/-0.015"£39.24
FU38405.050.00011/2"17/32"1 1/16"13/64"+0.005/-0.013"£54.48
GZ92701/4"9/32"5/8"3/32"+0.015/-0.004"£22.37
HZ92773/4"13/16"1 15/32"7/32"+0.011/-0.012"£19.95
IZ92723/8"13/32"13/16"1/8"+0.001/-0.015"£229.51
J2KKF53/8"13/32"13/16"1/8"+0.001/-0.015"£7,447.62
KZ92765/8"21/32"1 5/16"7/32"+0.011/-0.012"£66.22
L2KKF45/16"11/32"11/16"3/32"+0.015/-0.004"£3,578.09
MZ92715/16"11/32"11/16"3/32"+0.015/-0.004"£58.81
NZ92787/8"15/16"1.75"1/4"+0.014/-0.015"£41.11
OZ92737/16"15/32"59/64"1/8"+0.001/-0.015"£20.66
PZ92759/16"19/32"1 11/64"11/64"+0.020/-0.003"£44.31
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"£0.26
C426701.125"1.150"2.25"1 1/8"7/32"£20.49
D426673/4"25/32"1.625"3/4"5/32£1.29
E4266313/8"13/32"7/8"3/8"1/8"£16.84
F426665/8"21/32"1.375"5/8"1/8"£16.49
PS DOORS -

Flat Washers

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

Flat Washers

StyleModelFits Bolt SizesInside Dia.ItemMaterialOutside Dia.Rockwell HardnessSizeThicknessPrice (inc. VAT)
AHU-1000USSHZYBAGGR1"1-1/16"USS WasherThrough Hardened Steel2.5"RC38 to 45-0.136 to 0.192"£21.45
BHS-1000SAEHZYB1"1-1/16"SAE WasherSteel2"Rc 38-451"0.156"£469.96
CHU-1000USSHZYB1"1-1/16"USS WasherSteel2.5"Rc 38-451"0.164"£490.33
AHS-1000SAEHZYBAGGR1"1-1/16"SAE WasherThrough Hardened Steel2"RC38 to 45-0.136 to 0.177"£12.21
AHS-1500SAEHZYBAGGR1.5"1.625"SAE WasherThrough Hardened Steel3"RC38 to 45-0.136 to 0.177"£17.40
DHU-1500USSHZYBAGGR1.5"1.625"Flat WasherSteel3.5"Rc 38-451.5"0.164"£1,000.89
AHU-1500USSHZYBAGGR1.5"1.625"USS WasherThrough Hardened Steel3.5"RC38 to 45-0.136 to 0.192"£26.09
AHU-1250USSHZYBAGGR1.25"1.375"USS WasherThrough Hardened Steel3"RC38 to 45-0.136 to 0.192"£13.54
AHS-1250SAEHZYBAGGR1.25"1.375"SAE WasherThrough Hardened Steel2.5"RC38 to 45-0.136 to 0.177"£22.11
AHU-1125USSHZYBAGGR1.125"1.25"USS WasherThrough Hardened Steel2.75"RC38 to 45-0.136 to 0.192"£15.87
AHS-1125SAEHZYBAGGR1.125"1.187"SAE WasherThrough Hardened Steel2.25"RC38 to 45-0.136 to 0.177"£17.63
EHU-0500USSHZYB1/2"9/16"USS WasherSteel1.375"Rc 38-451/2"0.109"£259.49
AHU-0500USSHZYBAGGR1/2"9/16"USS WasherThrough Hardened Steel1.375"RC38 to 45-0.086 to 0.132"£7.26
FHS-0500SAEHZYB1/2"17/32"SAE WasherThrough Hardened Steel1 1/16"C38 to C45-0.097 to 0.121"£843.14
AHS-0500SAEHZYBAGGR1/2"17/32"SAE WasherThrough Hardened Steel1 1/16"RC38 to 45-0.097 to 0.121"£6.68
AHU-0250USSHZYBAGGR1/4"5/16"USS WasherThrough Hardened Steel3/4"RC38 to 45-0.051 to 0.08"£13.29
GHU-0250USSHZYBAGGR1/4"5/16"Flat WasherSteel3/4"Rc 38-451/4"0.066"£417.83
AHS-0250SAEHZYBAGGR1/4"9/32"SAE WasherThrough Hardened Steel5/8"RC38 to 45-0.051 to 0.08"£9.74
AHS-0750SAEHZYBAGGR3/4"13/16"SAE WasherThrough Hardened Steel1 15/32"RC38 to 45-0.122 to 0.177"£13.01
HHU-0750USSHZYBAGGR3/4"13/16"Flat WasherSteel2"Rc 38-453/4"0.149"£551.20
AHU-0750USSHZYBAGGR3/4"13/16"USS WasherThrough Hardened Steel2"RC38 to 45-0.122 to 0.177"£26.33
IHU-0375USSHZYB3/8"7/16"USS WasherSteel1"Rc 38-453/8"0.084"£260.26
AHU-0375USSHZYBAGGR3/8"7/16"USS WasherThrough Hardened Steel1"RC38 to 45-0.064 to 0.104"£10.39
AHS-0375SAEHZYBAGGR3/8"13/32"SAE WasherThrough Hardened Steel13/16"RC38 to 45-0.051 to 0.08"£6.72
JHU-0625USSHZYBAGGR5/8"11/16"Flat WasherSteel1.75"Rc 38-455/8"0.134"£487.36
FOREVERBOLT -

Fender Washers

StyleModelFits Bolt SizesGradeInside Dia.Package WeightRockwell HardnessThicknessThickness TolerancePrice (inc. VAT)
AFBFEWASHT1221/2"18-817/32"0.1B701/8"+/-0.015"£8.19
BFB3FEWASH122P51/2"31617/32"0.25B800.062"+/-0.010"£19.46
CFBFEWASHT3823/8"18-813/32"0.1B701/8"+/-0.015"£6.54
APPROVED VENDOR -

Stainless Steel Flat Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessPrice (inc. VAT)
AM55420.060.0001M66.4mm12 mm1.6mm£2.62
BM55420.080.0001M88.4mm16 mm1.6mm£4.57
CM55420.100.0001M1010.5mm20 mm2mm£8.56
APPROVED VENDOR -

Case Hardened Steel Thick Square Washer

StyleModelFits Bolt SizesInside Dia.Price (inc. VAT)
AZ8962H1"1-1/16"£10.96
BZ8954H1/2"9/16"£5.72
CZ8950H1/4"5/16"£2.69
DZ8958H3/4"13/16"£9.83
EZ8952H3/8"7/16"£7.29
FZ8956H5/8"11/16"£9.63
GZ8960H7/8"15/16"£6.79
APPROVED VENDOR -

Steel Thick Square Washer

StyleModelFits Bolt SizesInside Dia.Price (inc. VAT)
AZ8954G1/2"9/16"£11.33
BZ8958G3/4"13/16"£10.46
CZ8952G3/8"7/16"£5.86
DZ8956G5/8"11/16"£10.51
EZ8960G7/8"15/16"£10.93
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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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