The Split Drive Anchor is a one-piece anchor with a split-type expansion mechanism on the working end

1/2 Heavy Duty Drill Bit - Stubby Length

1 1/8-7 x 10 Socket Cap Screw Alloy

7/8-14 x 5 1/2 Hex Cap Screw SS 18-8 (A2)

7/8-9 x 2 1/2 Hex Cap Screw SS 18-8 (A2)

1/2-13 x 6 1/2 Hex Cap Screw SS 316 (A4) 1-8 Hex Cap Screws 18-8 Stainless Steel The Split Drive Anchor is1 2 13 x 6 1 2 Hex Cap Screw SS 316 (A4) . 316 series stainless steel differs from 18 8 by its molybdenum content (2 3%) and a higher nickel content (10 14%). 316 stainless steel has greater corrosion resistance than 18 8 as well as superior strength at high temperatures.