GRK’s Trim™ Head screws are an excellent choice for most fine carpentry applications, as well as window extension jambs and more. Less expensive and easier to use than lag-screws, the code-compliant self-tapping hardened steel screws offer great grip, shear-strength, and torque. GRK Fasteners' R4™ screws measuring 2" and longer have a four-thread CEE Thread. Shop GRK R4 #10 x 3-1/8-in Climatek-coated Stainless Steel Round Interior/Exterior Wood Screws (1500-Count)undefined at Lowe's.com. Interior and Exterior; Designed for Ledger Board, Retaining Walls and Timber Framing; The sharp threads and points bite instantly into the material (including hardwood), reducing the splitting effect due to smaller shanks. This enlarges the screw hole for the non-threaded portion of the fastener, allowing the wood to settle. The sharp threads and points bite instantly into the material (including hardwood), reducing the splitting effect due to smaller shanks. It increases the screw's drawing strength and reduces the friction on the screw shank that lowers the driving torque. Account & Lists Account Returns & … GRK 62225 RSS PHEINOX 305SS HandyPak 5/16-inch by 4-inch Structural Screws, (45 per Pack): Amazon.sg: Home Improvement R4™ screws 2″ and longer have a four-threaded CEE Thread. It increases the screw’s drawing strength and reduces the friction on the screw shank which in turn lowers the driving torque. Frame with ease and confidence. Simpson Strong Tie advertises that their #9 and #10 SD Connector screws are code approved as a substitute for 10d and 16d, respectively. They are self tapping eliminating pre-drilling featuring a countersinking head with cutting teeth, W-Cut™ for reducing splitting, CEE Thread™ for no splitting, reducing install torque and our Climatek™ AC257 code approved coating. SKU: N/A Categories: Fasteners, GRK Fasteners, Screws. Recessed Star Drive: Zero Stripping with 6 points of contact These screws are made of case-hardened steel for a very 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. GRK RSS Structural Screws. Star Drive Washer Head RSS Structural Screws (50-Pack) GRK RSS Rugged Structural Screw has a patented GRK RSS Rugged Structural Screw has a patented design and made of especially hardened steel to provide customers with high tensile, torque and shear strength. Case Hardened Steel: for high tensile, torque and shear strength. This design enhances the R4's versatility by allowing the fastener to countersink into even the hardest woods. This feature also increases the screw's drawing strength and reduces friction on the screw shank that lowers driving torque. Buy your GRK Fasteners 02101 #9 x 2-1/2" R4 Multi Purpose Screw at burnstools.com. The sharp threads and points on the RSS screws instantly bite into the materials, reducing any splitting effect generally caused by smaller shanks. Also, it's worth pointing out that the GRK cabinet screws aren't "skinny"...they're of a particular size (#8) and will match any other #8 of the same quality in shear strength. ... High tensile torque and shear strength (5/16" diameter screw equivalent to 1/2" lag bolt) For interior/exterior use Available in Climatek™ or white powder coated finish Also available in: PHEINOX™ 305 grade Stainless Steel. The RSS screw is made of specially hardened steel to provide you with high tensile, torque and shear strength. Description; click to zoom. Where are GRK Fasteners used in Zero House? R4™ Multi-Purpose Framing Screws are used for wood, plastic, cement fiber board, particle board, sheet metal, wood decking and melamine. Shear is the force that wants to slide the pieces being joined. Spax and GRK screws usually come packaged with a Torx T20 or T25 bit. The sizes I've been comparing are GRK #9 x 3-1/8'' to SPAX #9 x 3-1/4''. This feature enlarges the screw hole for the non-threaded portion of the fastener, making it easy for the wood to settle. The material I've been driving them into have been Douglas Fir 2 x … GRK R4 HandyPak Multipurpose Screws, 10 by 4-3/4-Inch, 50-Count: Amazon.sg: Home Improvement. GRK RSS10318-5 RSS ProPak 10 by 3-1/8-Inch Structural Screws, 236 Screws per Pail From the Manufacturer. GRK structural screws. Account & Lists Returns & Orders. Shop Your Way; Pinterest; Email add to registry. Try. GRK's RSS Rugged Structural 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 material, including hardwood, reducing the splitting effect due to smaller shanks. GRK’s RSS™ screw is made of specially hardened steel to provide you with high tensile, torque, and shear strength. Structural screws meet stringent engineering standards. Structural screws aren’t cheap: they generally cost several times more than an equivalent lag screw. Star Drive Washer Head RSS Structural Screws (300-Pack) GRK RSS Rugged Structural Screw has a patented GRK RSS Rugged Structural Screw has a patented design and made of especially hardened steel to provide customers with high tensile, torque and shear strength. GRK Fasteners' RSS™ Rugged Structural Screw is made of specially hardened steel to provide you with the highest tensile, torque and shear strength available. GRK® RSS™ 5/16" x ... RSS™ rugged structural screws is a line of screws made of an extremely high-quality carbon steel that provides high tensile torque and shea strength. ... R4™ Climatek™ Zip Tip ™ W-Cut™ ... for high tensile, torque and shear strength; For interior/exterior use: in wood, plastic, cement fiber board, sheet metal, wood decking and melamine. Prime Cart. GRK RSS Rugged Structural Screw has a patented design and made of specially hardened steel to provide customers with high tensile, torque and shear strength. GRK RSS Rugged Structural Screw has a patented design and made of specially hardened steel to provide customers with high tensile, torque and shear strength. Made of Specially Hardened Steel to provide High Tensile, Torque and Shear strength. From looking at Simpson's ESR 3046 certification (ditto on the link), it appears that in #9 GRK beats #9 Simpson in shear (428 to 425) and tensile (627 to 510) strength. Skip to main content.in Hello, Sign in. I've been doing some extensive testing of both brands. Shear Strength Approved for use in RECESSED STAR DRIVE ZIP-TIP™ CEE THREAD™ W-CUT™ C M Y CM MY CY CMY K R4.pdf 1 2014-12-19 10:09 AM. Hardened, high-quality, heat-treated steel means virtually no chance of shear-offs. No pre-drilling is required! No pre-drilling is required! Thanks Multi-use screw for wood, particle board, sheet metal, cement fibre board, laminate and wood decking and melamine. GRK 772691001054 R4 Bulk Number-9 by 3-1/8-Inch Screw: Amazon.in: Home Improvement. Diameter with threads excluded from the shear plane = 0.164" Radius = 0.082" Area in shear plane = pi x radius ^ 2 = 0.0211 square inches x 36,000 psi = 760 psi ultimate strength Fv = 0.22 Fu (coeficient used for bolts according to manual for steel construction - AISC 9th edition) Fv = 167 lbs shear strength Am I way off in my thinking? All Hello, Sign in. The RSS (Rugged Structural Screws) hold the corners of the prefab panels together, providing a strong connection that draws the top and side plates together reliably and offer the shear strength and pull strength to keep the panels together. GRK Fasteners R4 Multi Purpose Screws feature: ... CEE thread on the shaft of 2″ and longer R4 screws enlarge the screw hole allowing wood to settle easily and increases the drawing strength; Excellent for working with cement fibre board and metal studs; Additional information. They'll do a lot better in pull-out strength than a flat-head wood screw, though, due to the much larger surface area of the head. RSS - GRK. The prefabricated panels used to build Zero House rely on GRK fasteners in many locations:. 30 day satisfaction guarantee. 10 x 4" GRK R4™ Flat Head Climatek™ Finish T-25 Drive Steel Multi-Purpose Exterior Wood Screw. 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