GRK 00135 R4 Bulk #10 by 2-3/4-Inch Screw

GRK 00135

•Climatek coating
•Self-tapping screw with countersinking head
•No pre-drilling use GRK bit T-25
•No stripped heads
•Can be used in wood, particle-board, cement fiberboard, plastic and sheet metal
•W-cut thread design

ITW 00135

GRK's R4 self countersinking screw has a new underhead with saw-blade like cutting teeth and six self-contained cutting pockets. Together they act similar to a circular saw-blade, transporting the drill dust away from the edge of the screw hole while cutting a perfectly clean hole into even the most brittle materials without cracking any surface treatment. This design also further enhances the R4's versatility by allowing the fastener to be installed without countersinking into even the hardest woods. The screw head closes the hole off with precision, leaving no damaged fibers around the head.