Less breakage

1/2-13 x 3 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25)

1 1/2-6 L9 Hex Collar Locknuts Cadmium Yellow & Wax Coated Domestic USA (5)

#23 Heavy Duty Jobber Drill Bit

1/2-20 x 1 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (450)

14-14 x 1-1/2 Hex Washer Head Self Drilling Screw Zinc Plated Tek #3 (2000) M42-4.50 Socket Cap Screws 12.9 Alloy Plain DIN 912 Less breakage14 14 x 1 1 2 Hex Washer Head Self Drilling Screw Zinc Plated Tek #3 (2000). 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