Dewalt Fab-Lok w/ 300 Series Stainless Steel Screw, 0.062" - 0.250" Grip Range (Box of 1000)

Vibration, either from inside or outside a building, can make ordinary fasteners loosen and back out. Fab-Lok fasteners combine a screw and a slotted aluminum sleeve to provide resistance to loosening in high-stress and high-vibration environments. Features: Hex washer head machine screw assembled to a slotted aluminum sleeve and EPDM sealing washer After tightening, clamping tines remain in place even if screw is removed. To achieve the published performance data, the screw must remain in the fastener. Greater joint integrity with clamping force Can be used in blind applications