Size Recommended Torque; Grade 2 Grade 5 Grade 8 18-8 S/S Bronze Brass; Coarse … For torque specifications on balllscrew components refer to Ballscrew - Installation Tools and Torque Specifications. Torque values are based on clean, dry threads. LUBED: DRY. Values through 7/16" diameter are stated in inch-pounds; 1/2" diameter and over are stated in foot-pounds. General Fastener Reference Guides. This fastener bolt torque calculator will Estimate the unknown torque, diameter, axial force applied and coefficient of turning friction for the given conditions. We have the charts to help you identify the many different types of bolts and screws for just about any project. See Torque Force Design Equations webpage and torque chart page for recommended fastener torque and equation data.. Grade 2 calculations only cover fasteners 1/4" - 3/4" in diameter up to 6" long. Bolt Torque Charts. 11 in Width (In.) D = Nominal Diameter F = Clamp Load For J429 Grade 5 and 8, FNL Grade 9, A574, Class 4.6, 8.8, 10.9 and 12.9, the clamp loads are listed at 75% of the proof loads specified by the standard. Apply ARP Ultra-Torque ® to fastener threads and the underhead of the bolt or underside of the nut. Lubricate all contact areas of the bolts and washers. AFT Fasteners is your trusted source for fastener information. Therefore, these suggested torque calculations are estimates and offered as a guide only. All calculations are for Coarse Thread Series (UNC). Most company has their Flange bolt torque tightening procedure that used during construction and operation of the plant. It starts with selecting the appropriate torque … FASTENER TORQUE CHARTS GUIDE FOR PREVAILING-TORQUE LOCK NUT ASSEMBLY TORQUES (CAD AND WAX, GRADE B, C, AND GRADE G FLANGE NUTS) LOCK NUT STANDARDS FROM IFI-100 REQUIREMENTS Torque-Tension Requirements • Clamp loads for the Grade B lock nuts equal 75% of the bolt proof loads specified for SAE J-429 Grade 5, and ASTM A-449 bolts. °Ù;Õ¯ÆMzùú!¾5•Ùˆ|~›÷ñ€þ“Ñb¯V±émDñ½[b´×8zö†-{kñÕ¸Iïy¢ÆÖ:¿ùaaþêc’ÈÞ¿VËT“^ae|($|6}ëoNÌfâx8ٚT'S_C•›š½wý;Ð}qúôkøBíé—ðßSˆö: röÁoD³Ÿw‚ý„8}2î¼~x󨍄ðÞ©\6–¨ '*­ X,T_UL'_^d-¤x”jÔeÖË>¸ÇׅÃ2æç8C>Âh In developing this information, Fastenal has made a determined effort to present its contents accurately. Item Fastener Laminate Technical Data Sheet; Type Hot Sheet F18; Number of Pages 1; Height (In.) Extreme caution should be used when using a formula for torque/tension relationships. naval ships’ technical manual chapter 075 fasteners this chapter supersedes nstm chapter 075 dated 15 september 1997 distribution statement a: approved for public release; distribution is TM 10-4330-237-13&P STANDARD TORQUE VALUES-METRIC SYSTEM In the absence of specific torque values, the following chart can be used as a guide to the maximum safe torque for a particular size/grade of fastener. Values calculated using industry accepted formula T = KDP where T = torque, K = torque coefficient (dimensionless), D = nominal diameter (inches), P = bolt clamp load (lbs). Clamp loads are based on 75% of the minimum proof loads for each grade and size. Check tightness and fasteners frequently. NOTE 1: The torque values represented here are intended to be for general information only, not for specific installations. Grade 5, F or higher nut: DRY. If you do employ the torque angle method, it's best to begin calibrating rotation from some small measured torque rather than the first point of contact with the work face. SAE ( inch ) Fastener Torque Specifications SAE ( inch ) Use Prevailing Torque All-Metal Nut chart if using this style of nut. For A307 Grade A, 75% of 36,000 PSI is utilized. For longer fasteners, the torque is reduced significantly. Torque is only an indirect indication of tension. The coefficient of frictioncan vary from 0.04 to 1.10, depending on the materials and the lubricants being used between mating materials. K values: waxed (e.g. Click here to download a printable rod bolt stretch monitoring chart Using the proper specific bolt type is very critical when working on a wood or metal project. Torque applifast.com Steel Grade SAE 5 SAE 8 Socket Head Cap Screws Property Class 8.8 10.9 12.9 Socket Head Cap Screw Torque in Pound Foot or (Pound Inch) Torque in Newton Meter - Nm Lubed means cleaned, dry bolts, lubricated with standard medium viscosity machine oil. The torque is due to clamp load and not related to prevailing torque. These estimated torque values are derived from the standard torque formula Torque = KDF utilizing a standard "free-spinning" nut (non-locknut) with a proof strength equal to or greater than the tensile strength of the bolt. Torque (Nm) Torque (ft-lbs) Caution: All material included in this chart is advisory only, and its use by anyone is voluntary. (Table IV from ref. h Î=”Hö”0v5%ð2NR×Ë6˜”˜8,cª REèJ …%´ò±k íÜå-í8nT¼wˆ,×E^7?—gÀïº. For these reasons, it is not practical to provide a single bolt torque chart or … Install fastener hand tight. Since calculated torque values are a function of the friction coefficients between mating threads and between the bolthead or nut and its mating surface, it is vitally important that the torque table values used are adjusted to reflect any differences in friction coefficients between those used to calculate the table and t… Title: Metric Bolts, Screws & Nuts: Tightening Torques Author: Fastener Mart Created Date: 8/12/2006 10:22:23 PM To achieve optimum accuracy, always use ARP Ultra-Torque ® fastener assembly lubricant whenever possible. Torque has been converted into ft/lbs by dividing the result of the formula by 12 All calculations are for Coarse Thread Series (UNC). Example: bolt and nut are both phosphated; required torque = torque recommended x 0.75. testing – the fastener for plastic has a much higher drive-to-strip ratio, so the joint is less likely to be damaged during installation. After being tightened, and torque is applied, there is a point when the fastener begins to move again. Proof load, stress area, yield strength, and other data is based on IFI 7th Edition (2003) Technical Data N-68, SAE J429, ASTM A307, A325, A354, A449, and A490. Extreme caution should be used when using a formula for torque… Caution: All material included in this chart is advisory only, and its use by anyone is voluntary. Use torque wrench to install fastener to the torque value from the chart below. Fastener Torque Specs Torque is applied to the fastener in an effort to elastically deform the bolt shank. Bolt tightening sequence or torque sequence is defined in the torque tightening procedure. For other applications or questions, e-mail engineer@fastenal.com. In addition, a proper bolt torque value can be inconsistent from fastener-to-fastener due to several factors including variations in material, coatings, surface finishes, fit tolerances, installation method, etc. MATED WITH PLAIN OR ZINC PLATED THREADS: Grade A or 2 hex head with. Grade A or 2 nut: Grade 5 hex head with. Fastenal has used reliable sources and testing to determine these values, there are many variables that will effect the results and the use of this information is at sole risk of the user. Torque is only an indirect indication of tension. John Deere Metric Bolt & Cap Screw Torque Values. pressure wax as supplied on high strength nuts) = .10, hot dip galvanized = .25, and plain non-plated bolts (as received) = .20. Grade 2 calculations only cover fasteners 1 ⁄ 4 “- 3 ⁄ 4 ” in diameter up to 6″ long; for longer fasteners the torque is reduced significantly. 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