A307 Grade A Carriage Bolts are manufactured from low carbon steel to meet or exceed ASTM A307 Grade A

5/8-11 x 8 Grade 5 Hex Cap Screw Zinc Plated

1/8 Cobalt Heavy Duty Jobber Drill Bit

so send back what you don’t want or need at any time

1 1/2-12 x 3 Socket Cap Screw Alloy

7/8-9 x 2 1/2 Hex Cap Screw SS 316 (A4) 1 3/8-12 Socket Cap Screws Alloy A307 Grade A Carriage Bolts7 8 9 x 2 1 2 Hex Cap Screw SS 316 (A4) . 316 series stainless steel differs from 18 8 by its molybdenum content (2 3%) and a higher nickel content (10 14%). 316 stainless steel has greater corrosion resistance than 18 8 as well as superior strength at high temperatures.