#1 Heavy Duty Drill Bit - Stubby Length

1-14 x 5 Grade 5 Hex Cap Screw Zinc Plated

#55 Heavy Duty Jobber Drill Bit

1 3/8-12 x 3 1/2 Socket Cap Screw Alloy

7/8-9 x 8 Hex Cap Screw SS 18-8 (A2) 1/2-13 Grade 8 Hex Cap Screws Yellow Zinc Plated #1 Heavy Duty Drill Bit7 8 9 x 8 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