Sulfur: Maximum 0

7/8-14 x 5 Grade 5 Hex Cap Screw Plain Domestic USA (15)

3/8 x 4 Mushroom Spike Zinc Plated (25)

27/64 Cobalt Heavy Duty Jobber Drill Bit

5/8-11 x 3 1/4 A325 Type 1 Heavy Hex Bolt Plain (150)

12-14 x 4 Hex Washer Head Self Drilling Screw Zinc Plated Tek #3 (500) F436 Flat Washers Hot Dipped Galvanized Sulfur: Maximum 012 14 x 4 Hex Washer Head Self Drilling Screw Zinc Plated Tek #3 (500). A tapping screw with an integrally formed hex washer head , spaced or unified threads, and a #2 or #3 drill point. Designed to drill through steel. AISI 1022 or equivalent steel. Rockwell C50 56. Meets F. I. P. 1000. 7 for torsional strength & drill speed. Meets ASTM A 510 for carbon steel manufacturing. Zinc plating meets ASTM B 117 for salt spray corrosion. Manufactured to SAE