8 x 1/2 Simpson Pan-Head Marine Screw - Phillips Drive 316 SS - Box (100)

8 x 1/2 Simpson Pan-Head Marine Screw - Phillips Drive 316 SS - Box (100) .

• Marine screws bite and hold fast in fiberglass, plywood and wood substitute materials
• Use for projects exposed to harsh marine or many chemically caustic conditions
• Ideal for applying trim, rub rail and molding to fiberglass boat hulls
• Extra-sharp points speed screw starts during assembly
• Specially engineered, high/low thread form incorporates indentations ("teeth") that cut easily and quickly through high-density materials
• Back-out resistance: once driven home, Marine screws are locked in place thanks to their "teeth" (the thread indentations will resist back-out even after prolonged vibration)
• Holding power: Pull-out values of Marine screws exceed those of ordinary tapping screws in fiberglass and wood
• Screws up to 1" in length are fully threaded.
• Screws more than 1" long are threaded 2/3 of the shank length
• Phillips drive