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R4 Framing and Decking Screw, 4-3/4 in L, W-Cut Thread, Recessed Star Drive, Zip-Tip Point, Steel - pack of 230

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GRK Fasteners 01143 R4 Framing and Decking Screw, 4-3/4 in L, W-Cut Thread, Recessed Star Drive, Zip-Tip Point, Steel - pack of 230

Item #: 01143 by GRK Fasteners

UPC #: 772691011435

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  • Recessed star drive for zero stripping, with six points of contact
  • CEE THREAD™ enlarges hole to reduce splitting
  • W-CUT™ for low torque, faster drive
  • ZIP-TIP™ ensures no pre-drilling and faster penetration
  • Cutting pockets provide a clean hole, reduces splitting and bore with precision
  • Case hardened steel for high tensile, torque and shear strength
  • Climatek™ coating is AC257 code approved for use in treated lumber

Applicable Materials

Cedar Lumber Redwood Southern Yellow Pine

Thread Type

W-Cut

Material

Steel

Length

4-3/4

Tensile Strength

846 lb

Thread Length

3"

Package Quantity

230 PK

Drive Size

T25

Shear Strength

542 lb

Nomenclature

01143 SCREW R4 STAR NO10X4-3/4

Point Type

Zip-Tip

SCREW R4 STAR PPK NO10X4.314IN
Specifications:

Application: For use in cement fiber board, melamine, particle board, plastic, sheet metal, wood decking

Includes: 2 in Bit

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. This design enhances the R4's versatility by allowing the fastener to countersink into even the hardest woods. The head of the screw closes the hole off with precision leaving no damaged fibers around the head. R4 screws 2 in and longer have a four threaded CEE thread. This enlarges the screw hole for the non-threaded portion of the fastener, allowing the wood to settle easily. It increases the screw's drawing strength and reduces the friction on the screw shank that lowers the driving torque.