Hero image 0 of GRK Fasteners 5914189 650 Piece R4 Countersink No. 8 x 2.5 in. Multi-Purpose Screws Yellow Zinc, 0 of 6
GRK Fasteners 5914189 650 Piece R4 Countersink No. 8 x 2.5 in. Multi-Purpose Screws Yellow Zinc
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Key item features
- Product Dimensions: These GRK Fasteners R4 multi-purpose screws measure No. 8 in callout size and 2-1/2 inches in length, suitable for various applications.
- Durable Construction: Crafted from case-hardened steel with a yellow zinc coated finish, ensuring high tensile, torque, and shear strength for both indoor and outdoor use.
- Innovative Design: Features a countersink head with saw-blade like cutting teeth and six self-contained cutting pockets for clean holes without pre-drilling, even in brittle materials.
- Efficient Driving: Equipped with a recessed star drive (6 points of contact) for zero stripping and faster penetration, reducing driving torque.
- Versatile Application: Ideal for use in wood, plastic, cement fiber board, particle board, sheet metal, wood decking, and melamine, eliminating the need for multiple screw types.
- Advanced Threading: Screws 2 inches and longer include a four-threaded CEE thread to enlarge the screw hole, increasing drawing strength and reducing friction.
- Convenient Packaging: This product comes in a bagged package containing 650 pieces, making it suitable for contractor use.
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Specs
- Hardware screw typeWood, Drywall, Sheet Metal, Drive
- MaterialSteel
- FinishCoated
- Rec. useWood, Indoor, Metal
- ColorYellow
- BrandGRK Fasteners
Current price is USD$56.31
Price when purchased online
- Free shipping
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Columbus, 43215
Arrives by Mon, Apr 27
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Sold and shipped by USAToolDepot
4.302631578947368 stars out of 5, based on 76 seller reviews(4.3)76 seller reviews
Free 30-day returns
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Starting from $73.26
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About this item
Product details
GRKs R4 self-countersinking screw has a new under head with saw-blade like cutting teeth and six self-contained cutting pockets. Together these features 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 further enhances the R4s 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.
R4 screws which are 2" and longer have a four threaded CEE thread that enlarges the screw hole for the non-threaded portion of the fastener. This technological advancement allows the wood to settle easily and increases the screws drawing strength, reducing the friction on the screw shank and lowering the driving torque.
The R4 is a multi-purpose screw that can be used in all woodworking and plastic applications. Because the head has a 90 degree angle at the underside, the screw fits perfectly into the pre-countersunk holes of hardware fittings such as hinges or locks. Stocking of different screws is no longer necessary because the R4 is a very versatile screw.
This design further enhances the R4s 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.
R4 screws which are 2" and longer have a four threaded CEE thread that enlarges the screw hole for the non-threaded portion of the fastener. This technological advancement allows the wood to settle easily and increases the screws drawing strength, reducing the friction on the screw shank and lowering the driving torque.
The R4 is a multi-purpose screw that can be used in all woodworking and plastic applications. Because the head has a 90 degree angle at the underside, the screw fits perfectly into the pre-countersunk holes of hardware fittings such as hinges or locks. Stocking of different screws is no longer necessary because the R4 is a very versatile screw.
- Brand Name: GRK Fasteners Sub Brand: R4 Callout Size: No. 8 Length: 2-1/2 in. Drive Style: Star Head Type: Countersk Head Finish: Coated Material: Steel Product Type: Multi-Purpose Screws Number in Package: 650 pc. Thread Type: W-Cut Indoor or Outdoor: Indoor and Outdoor Packaging Type: Bagged Recessed Star Drive: Zero Stripping, with 6 points of contact No pre-drilling, faster penetration Case Hardened Steel: for high tensile, torque and shear strength For interior / exterior use in wood, plastic, cement fiber board, particle board, sheet metal, wood decking and melamine
- Department: HARDWARE/BUILDING MATERIAL
- mdseClass: DRYWALL/DECK/EXT SCREWS
- Prod Group: CONTRACTOR PACK/5LB
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Specifications
Hardware screw type
Wood, Drywall, Sheet Metal, Drive
Material
Steel
Finish
Coated
Rec. use
Wood, Indoor, Metal
Warranty
Warranty information
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