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

5/8-18 x 8 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (10)

That's why it's holding up the sprinkler system in the Tokyo subway

Download Simpson NAILON™ Anchor Technical Data Download Simpson NAILON™ Anchor Material Safety Data Sheet

7/8-9 x 3 1/4 Grade 5 Hex Cap Screw Plain Domestic USA (15)

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