1/2 x 16 Hex Lag Screw Hot Dipped Galvanized

Marine screws are locked in place thanks to their "teeth" (the thread indentations will resist back-out even after prolonged vibration)

8 x 1 1/4 Simpson Mod Truss-Head Self-Drilling Wire Lath Screws - Phillips Drive 410 SS - Box (100)

(TB™) 3/8-1/2 Toggler Hollow Wall Anchor Nylon (100)

7/8-9 Nylon Insert Locknut 316 Stainless Steel M20-2.50 Socket Cap Screws 12.9 Alloy Plain DIN 912 1/2 x 16 Hex Lag7 8 9 Nylon Insert Locknut 316 Stainless Steel . 316 stainless steel hex nut with a nylon filled collar at its back end. When a screw reaches the collar, the threads and nylon form a tight, frictional fit, restricting movement of the screw when it is subjected to vibration. Designed to be used with like material machine screws and bolts. It is able to be reused more times than a two way reversible nut, however, nylon will begin to deteriorate at