Some sizes available in Pheinox 305 Stainless Steel
No-predrilling, No stripped heads

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 3.54 inch
Height : 1.57 inch
Length : 3.86 inch

Item Weight: 0 ounce (View shipping rates and policies)
Shipping Weight: 0 ounce (View shipping rates and policies)

ASIN : B001PCZ7GO

Product Description

GRK''s R4 self-countering screw has a new under head 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 versatility by allowing the fastener to be installed without countersinking into even the hardest woods. The R4 screw closes the hole off with precision, leaving no damaged fibers around the head. Applications include wood, particle board, plastic, sheet metal, cement fiberboard, composite decking, wood decking and melamine.