Brand: Automotive Racing Products (ARP)
Hardened, parallel-ground ARP chrome moly washers are a great match for ARP SAE Bolts.
These 3/8" ID washers have an oversized 7/8" OD that is larger than AN960 washers, but smaller than AN970 washers (AN960-616 washers have a 5/8" OD; AN970-6 washers have a 1 5/8" OD). The ID is not chamfered, but the OD has a radiused edge on one side. Extra-thick 0.150" thickness is almost like stacking 2 AN960-616 washers plus one AN960-616L thin washer. Black oxide finish. Sold in packs of 10.
| 3/8" Washer Comparison |
| Washer | OD | Thickness |
| AN960-616 | 0.625" | 0.063" |
| ARP200-8688 | 0.875" | 0.150" |
| AN970-6 | 1.625" | 0.063" |
