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Marine screws are locked in place thanks to their "teeth" (the thread indentations will resist back-out even after prolonged vibration)
1 1/8-7 Finished Hex Nut SS 18-8 (A2)
1-8 x 6 A307A Hex Tap Bolt Zinc Plated
7 x 3 Simpson Trim-Head Self-Drilling Siding Screw - Square Drive 410 SS - Carton (2000)
5/8-11 x 5 1/4 Hex Cap Screw SS 316 (A4)
10 x 3 1/2 Simpson Bugle-Head Self-Drilling Screw - Square Drive 410 SS - Carton (1000) 5/8-18 Grade 8 Hex Cap Screws Yellow Zinc Plated Marine screws are locked in10 x 3 1 2 Simpson Bugle Head Self Drilling Screw Square Drive 410 SS Carton (1000) . Fasten wood, plywood and OSB panels to steel studs #2 square drive bugle heads drive flush with work surface Tapping screw threads, #3 drill points Drilling thickness capacities: up to . 083" (68 mils, 14 ga.) for #6, up to . 142" (118 mils, 10 ga) for #8 and up to . 177" for #10