12 x 2 Simpson Flat-Head Self-Drilling Screw w/ Wings - Square Drive 410 SS - Carton (1000)

1 3/8-6 A194 2H Heavy Hex Nut Plain

7 x 1 1/4 Simpson Trim-Head Wood Decking Screws - Square Drive 305 SS - Bulk Pail (5000)

They are actually stronger than most metal and chemical anchors

Ideal for securing clips used in standing seam roofing

6 x 1 1/4 Phillips Bugle Decking Screws Dacrotized - Carton (8000) SDS Max X-Cutter Hammer Drill Bits 12 x 2 Simpson Flat-Head6 x 1 1 4 Phillips Bugle Decking Screws Dacrotized Carton (8000) . Exterior wood screws used for attaching wood to wood. Used in fencing, decks and patios Exceeds 500 hr. salt spray resistance Medium degree of corrosion resistance