GRK R4 Multi-Purpose Screws in Bronze Climatek-Coated Steel 12/14 x 8-in with Flat Head and Star Drive - Pack of 50

GRK's R4 self-countersinking screw has a new underhead with saw-blade like cutting teeth and six self contained cutting pockets. The screw head closes the hole off with precision, leaving no damaged fibers around the head. This multi-use screw can be used in wood, particle board, plastic, sheet metal, cement fiberboard, composite decking, wood decking and melamine.

• R4 Bit Table #4 uses T-10, #6 and #8 use T-15, #9, #10 and #12 all use T-25
• Self-Tapping, countersinking head, W-cut thread design and Climatek coated
• Wood, particle board, cement fiberboard, plastic and sheet metal