1/2-13 x 12 Grade 8 Hex Cap Screw Yellow Zinc Plated

1/4 Heavy Duty Drill Bit - Stubby Length

#54 Heavy Duty Jobber Drill Bit

5/64 Heavy Duty Drill Bit - Stubby Length

Typical hardness will reach a maximum of Rockwell C28

8 x 9/16 Simpson Mod Truss-Head Self-Drilling Wire Lath Screws - Phillips Drive 410 SS - Carton (1000) 1 1/2-6 Socket Cap Screws Alloy 1/2-13 x 12 Grade 88 x 9 16 Simpson Mod Truss Head Self Drilling Wire Lath Screws Phillips Drive 410 SS Carton (1000) . Fastens corrugated siding panels to steel stud without pre drilling #3 drill point for quick penetration of aluminum panels without "point walking" Securely fastens one to three panel thicknesses #8 Diameter #2 Phillips drive Drilling thickness capacity: up to 0. 142" (118 mils or 10 ga.)