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GRK Fasteners R4 01101 Framing and Decking Screw, #9 Thread, 2-1/2 in L, W-Cut Thread, Round Head, Star Drive, Steel
SCREW MULTI-PURPOSE 9X2-1/2IN
 
Our Price: $99.99


Product Code: 7212400
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Description Extended Information
 
GRK's R4??? self-countersinking screw has a patented 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.