5/8-11 x 14 A307 Grade A Carriage Bolt HDG

3/4-10 x 11 Socket Cap Screw Alloy

#33 Heavy Duty Jobber Drill Bit

61/64 x 6 Reduced Shank Drill Bit (1/2 Shank)

#60 Heavy Duty Jobber Drill Bit

7/8-14 x 4 1/2 Hex Cap Screw SS 18-8 (A2) Grade 2 Finished Hex Nuts Zinc Plated 5/8-11 x 14 A307 Grade7 8 14 x 4 1 2 Hex Cap Screw SS 18 8 (A2) . 18 8 stainless steel hex cap screws will have a typical composition of 18% chromium and 8% nickel. These percentages exist in 303, 304 and 305 series stainless steels so 18 8 is used at times to designate any and all of those alloy groups. 18 8 stainless steel offers good corrosion resistance and machines easily but will over time stain in coastal environments. They are also acceptable for use in ACQ