1-8 x 4 A307A Hex Tap Bolt Zinc Plated

1-8 x 8 Grade 5 Hex Cap Screw Zinc Plated

Material is manufactured to meet or exceed ASTM A563 Grade A

#19 Heavy Duty Jobber Drill Bit

3 USS Flat Washer Zinc Plated

9/16-18 x 3 1/2 Hex Cap Screw SS 18-8 (A2) 7/16-20 Socket Cap Screws Alloy 1-8 x 4 A307A Hex9 16 18 x 3 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