9/16-12 x 1 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (300)

Typical hardness on diameters 1/4 to 1 inch is HRC 25-34

These values are offered as a guide

8 x 1 5/8 Simpson Bugle-Head Self-Drilling Screw - Square Drive 410 SS - Carton (1000)

1/4 x 1 1/4 Mushroom Spike 316 SS (100)

5/8-11 x 3 1/2 A325 Type 1 Heavy Hex Bolt Plain Domestic (USA) - Bulk Keg (475) 1/2-13 Socket Cap Screws Zinc Plated 9/16-12 x 1 1/4 GradeThis pack of 475 5 8 11 x 3 1 2 A325 Type 1 Heavy Hex Bolts is top quality and domestically made in the US. Enjoy superior strength and durability when installing these bolts in any application.