East Coast Lumber & Building Supply, LLC

Grk Screws

GRK Screws are the best grade of construction screws on the market. Preferred by professional contractors for their superior strength: aggressive thread: unique engineering and specialty applications. GRK Screws have quickly become the most sought after screws in the construction market.

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55 found, showing page 3 of 4

	Item	Description	Available	Price	UM	Mfg Part #
GRK 10x3-1/8" R4 SCREW 70ct 18.59 SKU: R410318HP GRK #10 x 3-1/8" R4 Multi-Purpose Framing Screw See a video of the R4 Multi-Purpose Framing Screw in action! Recessed Star Drive: Zero Stripping, with 6 points of contact CEE Thread: Enlarges hole to reduce splitting W-Cut: Low torque, smoother drive Zip-Tip: no pre-drilling, faster penetration Cutting Pockets: provide a clean hole, reduces splitting, and bore with precision ESR-3201 Approved for structural applications Case Hardened Steel: for high tensile, torque and shear strength For interior/exterior use: in wood, plastic, cement fiber board, sheet metal, wood decking and melamine View Details	R410318HP	GRK 10x3-1/8" R4 SCREW 70ct	62	18.59	/ EA	103137
GRK 10x3-1/8" R4 SCREW 350ct 59.99 SKU: R410318PP GRK #10 x 3-1/8" R4 Multi-Purpose Framing Screw See a video of the R4 Multi-Purpose Framing Screw in action! Interior / Exterior Use: Decking Stairs Residential Construction > No Pre-Drilling Unless Material Requires > Self Countersinking >Starhead Recess / Non Stripping Heads > Can Be Used With Fibrous Materials > Extreme Threads GRK's R4 self-countersinking screw has a patented underhead with saw-blade like patented 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 enhances the R4's versatility by allowing the fastener to countersink into even the hardest woods. The screw head closes the hole off with precision, not leaving any 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 screw's 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. GRK Fasteners R4 Pro Pack View Details	R410318PP	GRK 10x3-1/8" R4 SCREW 350ct	102	59.99	/ EA	01137
GRK 10x3-1/8" R4 SCREW 1500ct 239.99 SKU: R410318B 10 x 3-1/8" R4 Multi-Purpose Screw (1900 Count) by GRK Fasteners 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. Recessed Star Drive: Zero Stripping, with 6 points of contact. CEE Thread: Enlarges hole to reduce splitting. W-Cut: Low torque, smoother drive. Zip-Tip: no pre-drilling, faster penetration. Cutting Pockets: provide a clean hole, reduces splitting, and bore with precision. Case Hardened Steel: for high tensile, torque and shear strength. For interior/exterior use: in wood, plastic, cement fiber board, sheet metal, wood decking and melamine. View Details	R410318B	GRK 10x3-1/8" R4 SCREW 1500ct	5	239.99	/ EA	00137
GRK 10x3-1/2" R4 SCREW 50ct 15.99 SKU: R410312HP GRK #10 x 3-1/2" R4 Multi-Purpose Framing Screw See a video of the R4 Multi-Purpose Framing Screw in action! Recessed Star Drive: Zero Stripping, with 6 points of contact CEE Thread: Enlarges hole to reduce splitting W-Cut: Low torque, smoother drive Zip-Tip: no pre-drilling, faster penetration Cutting Pockets: provide a clean hole, reduces splitting, and bore with precision ESR-3201 Approved for structural applications Case Hardened Steel: for high tensile, torque and shear strength For interior/exterior use: in wood, plastic, cement fiber board, sheet metal, wood decking and melamine View Details	R410312HP	GRK 10x3-1/2" R4 SCREW 50ct	5	15.99	/ EA	02139
GRK 10x3-1/2" R4 SCREW 300ct 59.99 SKU: R410312PP GRK #10 x 3-1/2" R4 Multi-Purpose Framing Screw See a video of the R4 Multi-Purpose Framing Screw in action! Recessed Star Drive: Zero Stripping, with 6 points of contact CEE Thread: Enlarges hole to reduce splitting W-Cut: Low torque, smoother drive Zip-Tip: no pre-drilling, faster penetration Cutting Pockets: provide a clean hole, reduces splitting, and bore with precision ESR-3201 Approved for structural applications Case Hardened Steel: for high tensile, torque and shear strength For interior/exterior use: in wood, plastic, cement fiber board, sheet metal, wood decking and melamine GRK Fasteners R4 Pro Pack View Details	R410312PP	GRK 10x3-1/2" R4 SCREW 300ct	30	59.99	/ EA	01139
GRK 10x4" R4 SCREW 50ct 18.59 SKU: R4104HP GRK #10 x 4" R4 Multi-Purpose Framing Screw See a video of the R4 Multi-Purpose Framing Screw in action! Recessed Star Drive: Zero Stripping, with 6 points of contact CEE Thread: Enlarges hole to reduce splitting W-Cut: Low torque, smoother drive Zip-Tip: no pre-drilling, faster penetration Cutting Pockets: provide a clean hole, reduces splitting, and bore with precision ESR-3201 Approved for structural applications Case Hardened Steel: for high tensile, torque and shear strength For interior/exterior use: in wood, plastic, cement fiber board, sheet metal, wood decking and melamine View Details	R4104HP	GRK 10x4" R4 SCREW 50ct	10	18.59	/ EA	103141
GRK 10x4" R4 SCREW 270ct 59.99 SKU: R4104PP GRK #10 x 4" R4 Multi-Purpose Framing Screw See a video of the R4 Multi-Purpose Framing Screw in action! Interior / Exterior Use Decking Stairs Residential Construction > No Pre-Drilling Unless Material Requires > Self Countersinking >Starhead Recess / Non Stripping Heads > Can Be Used With Fibrous Materials > Extreme Threads GRK's R4 self-countersinking screw has a patented underhead with saw-blade like patented 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 enhances the R4's versatility by allowing the fastener to countersink into even the hardest woods. The screw head closes the hole off with precision, not leaving any 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 screw's 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. GRK Fasteners R4 Pro Pack View Details	R4104PP	GRK 10x4" R4 SCREW 270ct	4	59.99	/ EA	01141
GRK 10x4-3/4" R4 SCREW 50ct 20.99 SKU: R410434HP GRK #10 x 4-3/4" R4 Multi-Purpose Framing Screw See a video of the R4 Multi-Purpose Framing Screw in action! > Interior / Exterior Use - Decking - Stairs - Residential Construction > No Pre-Drilling Unless Material Requires > Self Countersinking >Starhead Recess / Non Stripping Heads > Can Be Used With Fibrous Materials > Extreme Threads GRK's R4 self-countersinking screw has a patented underhead with saw-blade like patented 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 enhances the R4's versatility by allowing the fastener to countersink into even the hardest woods. The screw head closes the hole off with precision, not leaving any 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 screw's 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. View Details	R410434HP	GRK 10x4-3/4" R4 SCREW 50ct	9	20.99	/ EA	02143
GRK 12x5-5/8" R4 SCREW 50ct 36.99 SKU: R412558HP GRK #12 x 5-5/8" R4 Multi-Purpose Framing Screw See a video of the R4 Multi-Purpose Framing Screw in action! Recessed Star Drive: Zero Stripping, with 6 points of contact CEE Thread: Enlarges hole to reduce splitting W-Cut: Low torque, smoother drive Zip-Tip: no pre-drilling, faster penetration Cutting Pockets: provide a clean hole, reduces splitting, and bore with precision ESR-3201 Approved for structural applications Case Hardened Steel: for high tensile, torque and shear strength For interior/exterior use: in wood, plastic, cement fiber board, sheet metal, wood decking and melamine View Details	R412558HP	GRK 12x5-5/8" R4 SCREW 50ct	8	36.99	/ EA	96089
GRK 5/16X2-1/2 RSS 100ct 48.99 SKU: RSS516212HP GRK 5/16" X 2-1/2" RSS (Rugged Structural Screw) See a video of the Rugged Structural Screw in action! > Interior / Exterior Use - Ledger Board - Retaining Walls - Log & Timber Framing > No Pre-Drilling Unless Material Requires > Lag Screw Alternative > Built In Washer Head > CEE Thread Enlarges Hole for Improved Drawing Strength GRK's RSS Rugged Structural Screw is made of specially hardened steel to provide you with high tensile, torque and shear strength. The sharp threads and points bite instantly into the material (including hardwood), reducing the splitting effect due to smaller shanks. RSS screws which are 3"1/8 and longer have a six threaded CEE thread that enlarges the screw hole for the non-threaded portion of the fastener, allowing the wood to settle easily and increasing the screw's drawing strength. The CEE thread also reduces the likelihood of splitting the wood and the friction on the screw shank which can result in lowering the driving torque. The rounded head (washer type head) does not have sharp edges such as on conventional lag screws. The added shoulder (nominal diameter) underneath the washer has the ability to center the RSS screw in pre-drilled hardware like hinges and connector plates. Short lengths of the RSS may also be used to install wire diamond mesh for stucco buildings. View Details	RSS516212HP	GRK 5/16X2-1/2 RSS 100ct	6	48.99	/ EA	12217
GRK 5/16x3-1/8" RSS SCREW 100ct 63.99 SKU: RSS516318HP GRK 5/16" X 3-1/8" RSS (Rugged Structural Screw) See a video of the Rugged Structural Screw in action! > Interior / Exterior Use - Ledger Board - Retaining Walls - Log & Timber Framing > No Pre-Drilling Unless Material Requires > Lag Screw Alternative > Built In Washer Head > CEE Thread Enlarges Hole for Improved Drawing Strength GRK's RSS Rugged Structural Screw is made of specially hardened steel to provide you with high tensile, torque and shear strength. The sharp threads and points bite instantly into the material (including hardwood), reducing the splitting effect due to smaller shanks. RSS screws which are 3"1/8 and longer have a six threaded CEE thread that enlarges the screw hole for the non-threaded portion of the fastener, allowing the wood to settle easily and increasing the screw's drawing strength. The CEE thread also reduces the likelihood of splitting the wood and the friction on the screw shank which can result in lowering the driving torque. The rounded head (washer type head) does not have sharp edges such as on conventional lag screws. The added shoulder (nominal diameter) underneath the washer has the ability to center the RSS screw in pre-drilled hardware like hinges and connector plates. Short lengths of the RSS may also be used to install wire diamond mesh for stucco buildings. View Details	RSS516318HP	GRK 5/16x3-1/8" RSS SCREW 100ct	2	63.99	/ EA	12221
GRK 5/16x4" RSS SCREW 100ct 68.99 SKU: RSS5164HP GRK 5/16" X 4" RSS (Rugged Structural Screw) See a video of the Rugged Structural Screw in action! Recessed Star Drive: Zero stripping, with 6 points of contact Cee Thread: for a clean finished look W-Cut: Low torque, smoother drive ZIP-TIP: No pre-drilling faster penetration Washer Head: for immense holding power Cutting Pockets: provide a clean hole and reduces splitting, and bore with precision ESR-3201 Approved for structural application Case Hardened Steel: for high tensile, torque and shear strength Climatek Coated: AC257 approved for use in treated lumber For interior/exterior use in: carrying beams, ledger boards, stair rails, deck posts, playground equipment and other professional applications View Details	RSS5164HP	GRK 5/16x4" RSS SCREW 100ct	50	68.99	/ EA	12225
GRK 5/16x5-1/8" RSS SCREW 50ct 53.99 SKU: RSS516518HP GRK 5/16" X 5-1/8" RSS (Rugged Structural Screw) See a video of the Rugged Structural Screw in action! > Interior / Exterior Use - Ledger Board - Retaining Walls - Log & Timber Framing > No Pre-Drilling Unless Material Requires > Lag Screw Alternative > Built In Washer Head > CEE Thread Enlarges Hole for Improved Drawing Strength GRK's RSS Rugged Structural Screw is made of specially hardened steel to provide you with high tensile, torque and shear strength. The sharp threads and points bite instantly into the material (including hardwood), reducing the splitting effect due to smaller shanks. RSS screws which are 3"1/8 and longer have a six threaded CEE thread that enlarges the screw hole for the non-threaded portion of the fastener, allowing the wood to settle easily and increasing the screw's drawing strength. The CEE thread also reduces the likelihood of splitting the wood and the friction on the screw shank which can result in lowering the driving torque. The rounded head (washer type head) does not have sharp edges such as on conventional lag screws. The added shoulder (nominal diameter) underneath the washer has the ability to center the RSS screw in pre-drilled hardware like hinges and connector plates. Short lengths of the RSS may also be used to install wire diamond mesh for stucco buildings. View Details	RSS516518HP	GRK 5/16x5-1/8" RSS SCREW 50ct	12	53.99	/ EA	12231
GRK 5/16x6" RSS SCREW 50ct 69.99 SKU: RSS5166HP GRK 5/16" X 6" RSS (Rugged Structural Screw) See a video of the Rugged Structural Screw in action! Recessed Star Drive: Zero stripping, with 6 points of contact Cee Thread: for a clean finished look W-Cut: Low torque, smoother drive ZIP-TIP: No pre-drilling faster penetration Washer Head: for immense holding power Cutting Pockets: provide a clean hole and reduces splitting, and bore with precision ESR-3201 Approved for structural application Case Hardened Steel: for high tensile, torque and shear strength Climatek Coated: AC257 approved for use in treated lumber For interior/exterior use in: carrying beams, ledger boards, stair rails, deck posts, playground equipment and other professional applications View Details	RSS5166HP	GRK 5/16x6" RSS SCREW 50ct	6	69.99	/ EA	12235
(E) GRK 5/16x3-1/8" RSS SCREW/EA 1.79 SKU: RSS516318 GRK 5/16" X 3-1/8" RSS (Rugged Structural Screw) See a video of the Rugged Structural Screw in action! Recessed Star Drive: Zero stripping, with 6 points of contact Cee Thread: for a clean finished look W-Cut: Low torque, smoother drive ZIP-TIP: No pre-drilling faster penetration Washer Head: for immense holding power Cutting Pockets: provide a clean hole and reduces splitting, and bore with precision ESR-3201 Approved for structural application Case Hardened Steel: for high tensile, torque and shear strength Climatek Coated: AC257 approved for use in treated lumber For interior/exterior use in: carrying beams, ledger boards, stair rails, deck posts, playground equipment and other professional applications View Details	RSS516318	(E) GRK 5/16x3-1/8" RSS SCREW/EA	59	1.79	/ EA