1/4 x 1 1/2 Nailon™ Anchor Mushroom Zinc Plated (100)

21/64 Heavy Duty Drill Bit - Stubby Length

9/16 x 6 ITM SDS Plus eVolution™ Hammer Drill Bit

#13 Heavy Duty Jobber Drill Bit

7/8-14 x 2 Socket Cap Screw Alloy

12 x 2 Simpson Flat-Head Self-Drilling Screw w/ Wings - Square Drive 410 SS - Box (100) Flat Washers Silicon Bronze 1/4 x 1 1/2 Nailon™12 x 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 hole in