31/64 Cobalt Heavy Duty Jobber Drill Bit

each prong of the cotter pin will be capable of withstanding being bent back upon itself once with no visible indication of fracture occurring at the point of the bend

9/16-12 x 1 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (350)

5/8-11 x 5 Hex Cap Screw SS 18-8 (A2)

75 x 260 Socket Cap Screw 12

2 3/4-4 A194 2H Heavy Hex Nut Plain 2 1/2-4 Socket Cap Screws Alloy 31/64 Cobalt Heavy Duty Jobber2 3 4 4 A194 2H Heavy Hex Nut Plain . 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.