The load-rated SD screw has been tested and approved for use in many popular Simpson Strong

which makes them particularly well-suited for outdoor usage

and improved corrosion resistance

1-8 x 3 Hex Cap Screw SS 316 (A4)

5/8-18 x 1 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25)

3 Piece Unibit HSS Step Drill Bit Set (Sizes #1 to #3), VACSET 1 1/8-7 A307A Hex Bolts Zinc Plated The load-rated SD screw hasSet of three HSS step drills, sizes #1, #2 and #3 Size #1: 1 8 to 1 2 by 1 32 Increments: 3 16 1 2 by 1 16 Increments, 1 4 3 4 by 1 16 Increments Set comes in plastic case, Step drills are the only drills you can sharpen yourself (both tip and flute). Exlusive single radial concave flute crates perfectly round holes in metal, plastic wood and other thin materials without center punching. Contructed of industrial grade high speed molybdenum steel, heat