3/4 L9 USS Tension Flatwasher Yellow Zinc Plated Domestic USA (40)

7/8-9 x 6 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (10)

1/4-20 x 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50)

1-8 x 4 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (30)

Meets ASTM A510 for carbon steel manufacturing

8-18 x 3/4 Hex Washer Head Self Drilling Screw Zinc Plated Tek #2 (10000) Square Bugle Coarse Drywall Screws Black Phosphate 3/4 L9 USS Tension Flatwasher8 18 x 3 4 Hex Washer Head Self Drilling Screw Zinc Plated Tek #2 (10000). 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