GRK 10225 Rugged Structural Screw, #5/16 X 4", Bulk BF10 Threaded approximately 2/3 up the

Threaded approximately 2/3 up the shank to tightly draw the decking to the joist

20 minute open time

1/4" hex quick-change locking collet

Cable or Wire Type : Type UF-B WG Underground Feeder

No-Load Speed: 10500 /min /min

GRK 10225 Rugged Structural Screw, #5/16 X 4", Bulk BF10 Threaded approximately 2/3 up theHighlights: Scientifically proven to out perform traditional screws Patented designs for no pre drilling Patented Climatek all weather coating May be used for Lag screw replacement Self countersinking design W Cut thread design, ZipTip Sharp threads and points Built in washer 400 Pieces Per Box Size: #5 16 X 4"