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Inner Diameter
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Flat Washer

Steel Component Flat Washers


Finish : Black Oxide
Material : Steel
System of Measurement: Imperial (Inch)
System of Measurement: Imperial (Inch)
Bolt Size Inner Diameter Outer Diameter Nominal Thickness Style SKU Pkg Qty Price
Bolt Size Inner Diameter Outer Diameter Nominal Thickness Style SKU Pkg Qty Price
#2 0.094" 0.188" 0.025" Thick 11128493 EA 0.57
#4 0.125" 0.250" 0.062" Thick 11128500 EA 0.55
#6 0.156" 0.313" 0.062" Thick 11128506 EA 0.58
#6 0.156" 0.375" 0.078" Thick 11128434 EA 0.26
#8 0.174" 0.375" 0.062" Thick 11128512 EA 0.33
#8 0.188" 0.438" 0.078" Thick 11128437 EA 1.00
#10 0.203" 0.500" 0.095" Thick 11128440 EA 0.69
1/4" 0.281" 0.500" 0.078" Thick 11128524 EA 0.42
1/4" 0.281" 0.625" 0.125" Thick 11128443 EA 0.95
1/4" 0.281" 0.625" 0.188" Extra Thick 11128538 EA 2.67
5/16" 0.344" 0.625" 0.095" Thick 11128530 EA 0.78
5/16" 0.344" 0.750" 0.125" Thick 11128446 EA 0.92
5/16" 0.344" 0.750" 0.188" Extra Thick 11128541 EA 2.19
3/8" 0.406" 0.750" 0.095" Thick 11128536 EA 0.79
3/8" 0.406" 0.875" 0.125" Thick 11128449 EA 1.20
3/8" 0.406" 1.000" 0.125" Extra Thick 11128571 EA 4.24
3/8" 0.406" 1.000" 0.188" Extra Thick 11128544 EA 3.49
7/16" 0.469" 1.000" 0.125" Thick 11128452 EA 1.43
7/16" 0.469" 1.000" 0.188" Extra Thick 11128547 EA 4.08
1/2" 0.531" 1.062" 0.188" Extra Thick 11128577 EA 3.38
1/2" 0.531" 1.125" 0.125" Thick 11128455 EA 1.68
1/2" 0.531" 1.125" 0.188" Extra Thick 11128549 EA 4.57
1/2" 0.531" 1.500" 0.250" Extra Thick 11128585 EA 8.98
5/8" 0.656" 1.313" 0.250" Extra Thick 11128581 EA 6.01
5/8" 0.656" 1.375" 0.125" Thick 11128458 EA 2.19
5/8" 0.656" 1.375" 0.188" Extra Thick 11128552 EA 3.80
5/8" 0.656" 1.500" 0.250" Extra Thick 11128586 EA 9.06
3/4" 0.781" 1.625" 0.156" Thick 11128461 EA 2.53
3/4" 0.781" 1.625" 0.250" Extra Thick 11128555 EA 6.89
3/4" 0.781" 1.875" 0.250" Extra Thick 11128587 EA 5.43
7/8" 0.906" 1.750" 0.156" Thick 11128465 EA 3.41
7/8" 0.906" 1.750" 0.250" Extra Thick 11128558 EA 8.13
1" 1.031" 2.000" 0.188" Thick 11128468 EA 3.90
1" 1.031" 2.000" 0.250" Extra Thick 11128565 EA 28.52
1" 1.031" 2.000" 0.284" Extra Thick 11128561 EA 10.73
1" 1.062" 2.500" 0.312" Extra Thick 11128589 EA 19.84
1-1/8" 1.156" 2.250" 0.250" Thick 11128471 EA 5.91
1-1/4" 1.281" 2.500" 0.284" Thick 11128473 EA 11.02
1-1/2" 1.563" 2.750" 0.375" Extra Thick 11128591 EA 40.34
System of Measurement: Metric
System of Measurement: Metric
Also known as the SI system, this measurement system is used across the globe. It is based on multiples of ten and uses meters, centimeters, millimeters as its basic measurements.
Bolt Size Inner Diameter Outer Diameter Nominal Thickness Style SKU Pkg Qty Price
Bolt Size Inner Diameter Outer Diameter Nominal Thickness Style SKU Pkg Qty Price
M3 3.2mm 8mm 2.00mm Thick 11128379 EA 1.39
M4 4.3mm 10mm 2.00mm Thick 11128381 EA 1.44
M5 5.3mm 11mm 2.00mm Thick 11128383 EA 2.27
M6 6.4mm 13mm 2.50mm Thick 11128385 EA 2.28
M6 6.4mm 18mm 4.50mm Extra Thick 11128411 EA 2.07
M8 8.4mm 16mm 3.00mm Thick 11128387 EA 2.27
M8 8.4mm 22mm 5.00mm Extra Thick 11128413 EA 6.47
M10 10.5mm 19MM 3.00mm Thick 11128389 EA 2.45
M10 10.5mm 23mm 5.00mm Extra Thick 11128415 EA 5.46
M12 13mm 22mm 3.00mm Thick 11128391 EA 2.42
M12 13mm 26mm 5.00mm Extra Thick 11128417 EA 8.90
M14 15mm 25mm 3.00mm Thick 11128393 EA 2.04
M16 17mm 28mm 3.50mm Thick 11128395 EA 3.24
M16 17mm 32mm 5.00mm Extra Thick 11128421 EA 3.84
M20 21mm 35mm 3.50mm Thick 11128397 EA 4.52
M20 21mm 35mm 5.00mm Extra Thick 11128423 EA 8.08
M30 31mm 44mm 4.00mm Thick 11128401 EA 7.60