so they fill old worn spike holes tightly

1-8 x 7 1/2 Grade 5 Hex Cap Screw Zinc Plated

#46 Heavy Duty Drill Bit - Stubby Length

meets or exceeds DIN 912

#38 Heavy Duty Jobber Drill Bit

1-8 x 3 1/2 Hex Cap Screw SS 18-8 (A2) M20-2.50 Hex Cap Screws DIN 933 18-8 Stainless Steel (A2) so they fill old worn1 8 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 pressure