Washers are 304 Stainless Steel
- Simpson Compatible ToolsPTP-27, PTP-27AL, PTP-27AS**, PTM-27, PTM-22, PT-27, PT-25S**, PT-22, PT-22GS, PT-22H - *Washers are 304 Stainless Steel, **Up to 2"
- Other Compatible Tools 721*, D-60, U-2000, System 1, System 3 and most other low velocity tools. *Washers are 304 Stainless Steel, **Up to 2"