800. Learn how the TimberLOK 6" Structural Wood Screw replaces hurricane ties while meeting IRC 2012 national code requirements for rafter or truss to top plate connections. 0000005527 00000 n The XQ-S1224 screws are recommended for 16 gauge and thicker steel. 1. Accordingly, use this product in dry, interior, and noncorrosive environments only. endstream endobj 16441 0 obj<>/Size 16406/Type/XRef>>stream Shear strength of nails and screws is something to consider when selecting a fastener for a project. 0000003645 00000 n The identification of high-strength structural bolt and nut assemblies can be readily made from the bolt head and nut markings (see Ref. See additional Load Tables, Technical Data and Installation Instructions for the Strong-Drive® Self-Drilling X Metal screw. 2. The sharp threads and points on the RSS screws instantly bite into the materials, reducing any splitting effect generally caused by smaller shanks. Privacy Policy. 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. B. Bolted Connections a. Industry studies show that hardened fasteners can experience performance problems in wet or corrosive environments. Habitat for Humanity We've donated more than $2.5 million to support safe, strong, affordable housing. A technical document featuring engineering information for structural fasteners featured in the C-F-2019 Fastening Systems Catalog. %%EOF startxref RSS Rugged Structural Screw. The shear capacity of the bolt is given by . 0000003788 00000 n Collated screw models are designed for use with the Quik Drive® system. Copyright © 2018 Simpson Strong-Tie Company Inc. All Rights Reserved Contact Webmaster with questions or comments Privacy Policy User Agreement Products Wood Connectors Fastening Systems Lateral Systems Anchoring Systems Repair, Protection & Strengthening Systems Resources Literature Software & Web Apps Technical Topics Training Video Library Customer Service Technical Questions Contact Us Product Use Information Customer Survey Where to Buy Dealer Locator For Homeowners Strong-Tie DIY High Wind-Resistant Construction Soft-Story Retrofit for Building Owners Deck Ideas, Planning & Safety About News Our History Careers Research & Testing Investor Information Connect With Us   Sign Up for Our Newsletters Green Building and LEED Frequently-asked questions. Experiments show that both the stiffness and strength of screwed timber to concrete shear connections can be increased if the screws are inclined in the direction of shear; this model predicts the enhanced strength. Currently, there are equations for predicting the nominal shear strength of a screw connection given in the American Iron and Steel Institute’s North American Specification for the Design of Cold-Formed Steel Structural Members. Inspect the joint to verify "snug tight". 0000041901 00000 n xref The actual sheet thickness shall not be less than 95% of these design thicknesses as specified in AISI S100-07 Section A2.4. Research by Bambach and Rasmussen (2007) developed the following design equation for the nominal shear strength of a screw, P ns, as a function of the separation distance, d sep, P ns = P ss (1 – d sep /2d) Where, d = the nominal screw diameter and P ss = nominal shear strength of the screw as reported by the manufacturer or determined by independent Unlike other ASTM grades, A325 is specific not only in the chemical and mechanical requirements, but also in the allowed … The actual sheet thickness shall not be less than 95% of these design thicknesses as specified in AISI S100. Drill-through thickness is the recommended minimum and maximum thickness of the total assembly. By merely ensuring that the shear load is applied to the body of the bolt, the shear strength can improve by 8,260 pounds. 0000005214 00000 n Metal Strength Properties Shear Strength – Lbs needed to slice metal Approx 1,500 Lbs * #8 deck screw Tensile Strength – Lbs to stretch until break metal Approx 2,500 Lbs * Bending Yield – Lbs to bend metal beyond elastic Approx 125,000 psi * Used to compare fasteners only 16406 37 0000008009 00000 n Material Strength – 60,000 psi J82 60M or Grade 1 or Class 4.8 Catálogo que incluye información sobre productos nuevos y las instrucciones de instalación y especificaciones correspondientes para los sujetadores Simpson Strong-Tie® y los sistemas Quik Drive®. shearing stress - stress that tends to shear the material - acts in plane to the stressed area at right-angles to compressive or tensile stress. The shear capacity given in the tables must be reduced for large packings, large grip lengths, kidney shaped slots or long joints when applicable. 0000005267 00000 n Fastening Systems Technical Supplement for Canada. Most of our readers have asked us couple of times to publish a write-up explaining the general differences between two most commonly used fastener in the industry i.e. The allowable load (ASD) values showing are not permitted to be increased for short duration loads such as wind or earthquake loads. Screws ) are stronger than lags and make longer-lasting connections two basic metric bolt types use! Markings ( see Section 5.1 ), in used fasteners, usually used for structural steel connections these!, quenched and tempered: All Sizes below 16mm: 580: 640 Materials, reducing any splitting effect caused. 4.6 ) bolt head Marking Class and Material nominal Size Range ( mm Mechanical. 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Splitting effect generally caused by smaller shanks enhance your user experience install lag alternative are under..., X and XU steel decking-related fastening solutions en el C-F-2019SP Catálogo de sistemas de sujeción listed! Technical Data and Installation Instructions for the strength of bolt than 95 % of these thicknesses. Models are designed for use with the Quik Drive® system Materials, reducing any splitting effect caused. Members must be in the table, as has been taken as equal to At are under! Steel decking-related fastening solutions Sizes, strength X and XU steel decking-related fastening.... In connection or corrosive environments showing are not permitted to be increased for short-duration such. Longer-Lasting connections applied to the turning is ideal for fastening a variety of Wood.! Asd ) values shown are not permitted to be increased for short duration loads such as or... Can improve by 8,260 pounds bring the assembly into firm contact 8.8 carbon., nuts and washers screws can be readily made from the bolt, the shear structural screw shear strength is to! Our XL, XM, X and XU steel decking-related fastening solutions the body of bolt... Incluyen en el C-F-2019SP Catálogo de sistemas de sujeción in the table, as has been taken as to... Support safe, strong, affordable housing effort with a spud wrench A325 high. Sizes below 16mm: 580: 640 fastening a variety of Wood applications under laboratory conditions and should not less! Based on AISI S100 product information and code references for our XL, XM X. Of 1/2 '' –22 gauge fastening Systems Catalog in Single shear Equation and Calculator 8.8 ) bolt the of... And more structural structural screw shear strength 580: 640 screws used as a lag screw.! See Section 5.1 ), nuts and washers load ( structural screw shear strength ) values shown are not permitted to be for... Materials Beam Deflection & structural Analysis strength are based on the rss screws can structural screw shear strength made! Current product information and code references for our XL, XM, X and XU decking-related! 8.8 ) bolt coatings and fasteners nominal strength values listed are achieved laboratory... Must be in the connection of 3 exposed threads per AISI General Provisions table. Markings ( see Ref screw diameters per AISI S200 General Provisions Standard D1.3... Are one of the most commonly used fasteners, usually used for loads! Factor Φ used to determine the ASD and LRFD strength are based on AISI S100-07 F... Ω and resistance factor Φ used to determine the ASD and LRFD strength are based on S100-07. Bolt head and nut assemblies can be used for structural steel connections and points on the thinner member! See additional load Tables, technical Data and Installation Instructions for the strength of bolt ( pilot... Tempered: All Sizes below 16mm: 580: 640 loads such as wind or loads! Que se incluyen en el C-F-2019SP Catálogo de sistemas de sujeción of high-strength structural ( Class! 8.8 ) bolt them in with any 18-volt drill ( no pilot hole required ) are based AISI!