50pc 6" screws headlok. Stronger 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. Length: 6", Head Type: Wafer, Pkg Qty: 50