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GRK #10 x 4 in. R4 Self-Countersinking Flat-Head Multi-Purpose Screw, Pack of 50

SKU # 129752399
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GRK's R4 self-countersinking screw has 6 self-contained cutting pockets which act like a router and transport the drill dust away from the edge of the screw hole. They also widen the countersink hole only around the head shape. The screw head top closes the hole exactly, leaving no damaged fibers around the wider area of the head. The R4 head design is so effective that it will not crack even the most brittle materials.

  • Climatek corrosion-resistant coating
  • Steel material

Specification Description
Brand: GRK
Package Quantity: 50
Product Finish: Climatek Corrosion Resistant Coating
Product Material: Steel
Product Size: 10 x 4 in.
Product Type: Screws
Warranty: Limited Lifetime Warranty
Manufacturer Part Number 103141
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