2 1/2-8 A194 2H Heavy Hex Nut Plain

7/8-9 x 1 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated

#55 Heavy Duty Drill Bit - Stubby Length

#9 Heavy Duty Jobber Drill Bit

5/8-11 x 2 Hex Cap Screw SS 316 (A4)

3/4-16 x 2 Hex Cap Screw SS 18-8 (A2) 3/4-10 Socket Cap Screws Alloy 2 1/2-8 A194 2H Heavy3 4 16 x 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 pressure