Buy Nuts, Bolts, Screws & Fasteners on sale from largest builders hardware supplies store in USA
Use with Grade 5 or 8 fasteners. Extra thick alloy uss flat washers. High tensile strength, won't dish out. ASTM F436 Rockwell hardness of C38-C45. ASTM A325 and A490 dimensional specifications. Plating: zinc; yellow dichromate plating for corrosion resistance.
- Size: 1"
- Outside Diameter: 2"-1/2"
- Inside Diameter: 1"-1/16"
- Thickness: 0.235-.265