USS Flat Washers

DEFAULT SPECIFICATIONS

Brand HJ Tech
Standard USS 
Material Carbon Steel/Stainless Steel/Aluminum
Finish Plain/Self Colour (S/C)/Black Oxide (Black)/Polished
Size #6-1"  

 

FEATURES

 

Flat Washers provide spacing and an increased bearing surface. USS Flat Washers offer a looser screw fit and a thicker washer with a larger outside diameter (OD) than comparably sized SAE washers. Use Through Hardened SAE Flat Washers with Grade 5 and Grade 8 Hex Bolts/Hex Head Cap Screws. Washer size refers to its nominal hole size and is based on screw size. See our USS Washer Dimensions reference chart.

USS Flat Washers

 

 

Description:

 

Size d dc h per 1000 units
  pitch Min Max pitch min max pitch min max  
N0.10 3/16 0.188 6.35 6.223 6.731 14.275 14.148 14.656 1.245 0.914 1.651 1.255
1/4 0.250W 7.925 7.798 8.306 18.644 18.466 19.025 1.651 1.295 2.032 2.899
5/16 0.312W 9.525 9.398 9.906 22.225 22.047 22.987 2.108 1.626 2.642 5.24
3/8 0.375W 11.125 10.998 11.506 25.4 25.222 26.162 2.108 1.626 2.642 6.776
7/16 0.438W 12.7 12.573 13.081 31.75 31.572 32.512 2.108 1.626 2.642 11.005
1/2 0.500W 14.275 14.148 14.656 34.925 34.747 35.687 2.769 2.184 3.353 17.344
9/16 0.562W 15.875 15.748 16.256 37.313 37.135 38.075 2.769 2.184 3.353 19.466
5/8 0.625W 17.475 17.297 18.237 44.45 44.272 45.212 0.404 2.743 4.064 35.036
3/4 0.750W 20.625 20.447 21.387 50.8 50.622 51.562 3.759 3.099 4.496 49.948
7/8 0.875W 23.825 23.647 24.587 57.15 56.972 57.912 4.191 3.454 4.877 69.724
1 1.000W 26.975 26.797 27.737 63.5 63.322 64.262 4.191 3.454 4.87 86.753
1-1/8 1.125W 31.75 31.572 32.512 69.85 69.672 70.612 4.191 3.454 4.877 100.019
1-1/4 1.250W 34.925 34.747 35.687 76.2 76.022 76.962 4.191 3.454 4.877 118.512
1-3/8 1.375W 38.1 37.846 39.243 82.55 82.296 83.693 4.572 3.886 5.41 151.165
1-1/2 1.500W 41.275 41.021 42.418 88.9 88.646 90.043 4.572 3.886 5.41 174.749
1-5/8 1.625 44.45 44.196 45.593 95.25 94.996 96.393 4.572 3.886 5.41 200.038
1-3/4 1.75 47.625 47.371 48.768 101.6 101.346 102.743 4.572 3.886 5.41 227.032
1-7/8 1.875 50.8 50.546 51.943 107.95 107.696 109.093 4.572 3.886 5.41 255.731
2 2.000 53.975 53.721 55.118 114.3 114.046 115.443 4.572 3.886 5.41 286.134
2-1/4 2.25 60.325 60.071 61.468 120.65 120.396 121.793 5.588 4.902 6.299 376.113
2-1/2 2.5 66.675 66.421 67.818 127 126.746 128.143 6.045 5.334 7.112 435.425
2-3/4 2.75 73.025 72.771 74.676 133.35 133.096 135.001 6.579 5.791 7.874 504.964
3 3.000 79.375 79.121 81.026 139.7 139.446 141.351 7.274 6.325 8.306 592.666