Black Luster® Grade 8 Steel USS Washers
DESCRIPTION - Black Luster® Grade 8 Steel USS Washers provide best in class decorative appearance and better corrosion resistance than black oxide and zinc plated finishes. Resistant to 1,000 hours of salt spray per ASTM B117*. Washers are primarily used to displace the load of a fastener head or a nut on a threaded joint. They can cover holes and act as spacers. These washers meet United States Standard specifications. & generally have a larger ID and OD than SAE washers. These washers should be used whenever high-strength hardened steel bolts specify the use of High Strength Grade 8 Washers. More washers.
| Screw Size | Part No. | ID | OD | Min/Max Thickness |
|---|---|---|---|---|
| 1/4" | 4001G8 | .313" | .750" | .051"-.080" |
| 5/16" | 4002G8 | .375" | .875" | .064"-.104" |
| 3/8" | 4003G8 | .438" | 1.000" | .064"-.104" |
| 7/16" | 40035G8 | .500” | 1.250” | .064"-.104" |
| 1/2" | 4004G8 | .563" | 1.375" | .086"-.132" |
| 9/16" | 4005G8 | 1.469” | .625” | .086"-.132" |
| 5/8" | 4006G8 | .688" | 1.750" | .108"-.160" |
| 3/4" | 4008G8 | .813" | 2.000" | .122"-.177" |
| 7/8" | 4009G8 | .938" | 2.250" | .136”-.192” |
| 1" | 4010G8 | 1.063" | 2.500" | .136”-.192” |
| 1-1/8" | 4011G8 | 1.250” | 2.750” | .136”-.192” |
| 1-1/4" | 4012G8 | 1.375” | 3.000” | .136”-.192” |
| 1-3/8" | 4013G8 | 1.500” | 3.250” | .153”-.213” |
| 1-1/2" | 4014G8 | 1.625” | 3.500” | .153”-.213” |
