1/2-13 x 16 Socket Cap Screw Alloy

1/2-13 x 3 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (150)

31/64 x 12 High Speed Aircraft Bit Cobalt

1/4-28 x 4 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (50)

1/2-13 x 4 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (25)

12-14 x 3/4 Hex Washer Head Self Drilling Screw Zinc Plated Tek #3 (4000) 5/8-18 Grade 8 Hex Cap Screws Yellow Zinc Plated 1/2-13 x 16 Socket Cap12 14 x 3 4 Hex Washer Head Self Drilling Screw Zinc Plated Tek #3 (4000). 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