GRK Fasteners GRK-R4

GRK R4 Screws in a variety of sizes and quantites

by GRK Fasteners
14 customer reviews | Ask a Question

Item No.: GRK-R4
  • Self-Tapping
  • Countersink Head
  • Patented Head & Thread
  • No Pre-Drilling
  • No Stripping Heads
  • CEE Thread
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6 to 10 days from US to you.

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1-9 $4.52box
10-24 $Loading.box
25-49 $Loading.box
50+ $Loading.box
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Product Overview

This Self-Countersinking screw has a new under head with sawblade like cutting teeth and six self-contained cutting pockets which together act like 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 this screws 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.

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Customer Satisfaction

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