1/2-20 x 8 Hex Cap Screw SS 316 (A4)

Flat countersunk head with self-countersinking nibs

7/8-9 x 3 3/4 Grade 5 Hex Cap Screw Plain Domestic USA (15)

#7 Heavy Duty Jobber Drill Bit

3-8 A194 2H Heavy Hex Nut Hot Dipped Galvanized Long Arm Hex Keys Alloy 1/2-20 x 8 Hex Cap3 8 A194 2H Heavy Hex Nut Hot Dipped Galvanized . A194 2H Heavy Hex Nuts are manufactured from 1045 steel to meet or exceed ASTM A194 Grade 2H. Hot Dip Galvanized material will meet or exceed ASTM A153 and or ASTM F2329. Galvanized nuts are over tapped per ASTM A563. Typical hardness is HRC 24 35 for diameters up to 1 1 2 inches, HRB 95 HRC 35 for diameters over 1 1 1 2 inches. Proof load strength is 175,000 psi.