The slots are on the end opposite the bearing surface

5/8-11 x 2 1/2 Hex Cap Screw SS 316 (A4)

7/64 Heavy Duty Drill Bit - Stubby Length

SNAPSKRU® anchors lock symmetrically on the wall and the ceiling for truly secure fastening

3/4 x 18 Hex Lag Screw Hot Dipped Galvanized

1-8 x 2 3/4 Hex Cap Screw SS 18-8 (A2) Jobber Drill Bits - Wire Gauge The slots are on the1 8 x 2 3 4 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