zinc and lead die castings

Fastens corrugated siding panels to steel stud without pre-drilling

#20 Heavy Duty Jobber Drill Bit

39/64 x 6 Reduced Shank Drill Bit (1/2 Shank)

1/2-13 x 9 Grade 5 Hex Cap Screw Zinc Plated

12 x 2 1/2 Simpson Flat-Head Self-Drilling Screw w/ Wings - Square Drive 410 SS - Box (100) 3/4-16 Grade 5 Hex Cap Screws Zinc Plated zinc and lead die castings12 x 2 1 2 Simpson Flat Head Self Drilling Screw w Wings Square Drive 410 SS Box (100) . Fasten wood, plywood and fiber cement to heavier steel up to . 209" thick #3 square drive Machine screw thread, threaded full length 2 1 2" length for 2 x 4 wood header; 2" length for 1" and 3 4" boards Flat countersunk head with self countersinking nibs Shank slot enhances thread formation in steel and removes exhaust Wings above drill point provide clearance