Fastenmaster Headlok 0.172 In. 4-1/2 In. Wafer Structure Screw (50 Ct.) Arrowhead Brass the spring action door sweep

the spring action door sweep automatically raises to clear carpet

UL (Underwriters' Laboratories) listed for 3 hour fire door

Adjustable at 1/4 In

and diode protected with spare fuse included

and access points to buildings

Fastenmaster Headlok 0.172 In. 4-1/2 In. Wafer Structure Screw (50 Ct.) Arrowhead Brass the spring action door sweepStronger design shear values than 3 8" lags. Sharp gimlet point for fast installation into wood and OSB. Aggressive thread for holding and withdrawal strength. Spider Drive offers highest level of bit engagement and drivability. Wafer head eliminates need for washer and offers increased pull through strength. Chamfer under head for increased strength. Free Spider Drive bit in every package. 50 pieces per box.