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Grade 8 Extra Heavy (Thick) SAE Flat Washers
Heat Treated Alloy Steel - Yellow Zinc Plated
EXTRA THICK Grade 8 SAE Flat Washers are manufactured from High Strength Alloy Steel. It is recommended that an EXTRA THICK Grade 8 Flat Washer be used with Grade 8 Nuts and Bolts. Grade 8 Washers do not crush and deform when torque is applied in tightening.
Tolerence | Tolerence | Thickness | |||||||
Size | Stock # | I.D. | + | - | O.D. | + | - | Min | Max |
1/4 | HSFW814 | 0.281 | 0.015 | 0.005 | 0.625 | 0.015 | 0.005 | 0.090 | 0.110 |
5/16 | HSFW8516 | 0.344 | 0.015 | 0.005 | 0.688 | 0.015 | 0.007 | 0.090 | 0.110 |
3/8 | HSFW838 | 0.406 | 0.015 | 0.005 | 0.812 | 0.015 | 0.007 | 0.110 | 0.126 |
7/16 | HSFW8716 | 0.469 | 0.015 | 0.005 | 0.921 | 0.015 | 0.007 | 0.110 | 0.126 |
1/2 | HSFW812 | 0.531 | 0.015 | 0.005 | 1.062 | 0.030 | 0.007 | 0.156 | 0.188 |
9/16 | HSFW8916 | 0.594 | 0.015 | 0.005 | 1.156 | 0.030 | 0.007 | 0.156 | 0.188 |
5/8 | HSFW858 | 0.656 | 0.030 | 0.007 | 1.312 | 0.030 | 0.007 | 0.170 | 0.195 |
3/4 | HSFW834 | 0.812 | 0.030 | 0.007 | 1.469 | 0.030 | 0.007 | 0.170 | 0.195 |
7/8 | HSFW878 | 0.938 | 0.030 | 0.007 | 1.750 | 0.030 | 0.007 | 0.235 | 0.265 |
1" | HSFW81 | 1.062 | 0.030 | 0.007 | 2.000 | 0.030 | 0.007 | 0.235 | 0.265 |