Relative Strength Marking 4.6 4.8 8.8 or 9.8 10.9 12.9 Bolt Markings Dia. The above Table is applicable only for A193 Grade B7 and A193 Grade B16 Stud Bolts. = Coefficient of Friction Steel 0.2 Cadmium 0.16 Lubricated 0.16 - 0.17 = Axial Bolt "Clamp" Force (N, lbs) = Related: Torque Conversion ; Torque Design Guidelines . Taobao Global SOV Hydraulic Technology (Shanghai) Co., Ltd. Hangzhou Linan Pliers Manufacture Co., Ltd. Dongguan Karlux Precision Machinery Science And Technology Co., Ltd. Hebei Fuao Fastener Manufacturing Co., Ltd. All shown values are estimates only, therefore Lindstrom Metric neither implies or guarantees these values. Cu/C paste = Copper/graphite paste (Molykote® 1000) Oil = WD40 has been used. | Showroom Below is a list of the recommended tightening torques for 12.9 / 10.9 / 8.8 zinc plated finish … perfect quality: We have strict quality control from producing to delivery. Lubed means cleaned, dry bolts, lubricated with standard medium viscosity machine oil. Handan Xiangdong Metal Products Co., Ltd. Handan Liqi Fastener Manufacturing Co., Ltd. Shenzhen Leite Hardware Electronic Co., Ltd. Yongnian County Tianbang Fasteners Co., Ltd. Qingdao Guanglai Jiayue International Trade Co., Ltd. Tianjin Zhenxiang Strip Processing Co., Ltd. Hebei Yuetong Fasteners Manufacturing Co., Ltd. NAMDHARI INDUSTRIAL TRADERS PRIVATE LIMITED. Tightening Torque Tensile / Yield / Shear Strength Socket Head Cap Screw SOCKET HEAD CAP SCREW - RECOMMENDED TIGHTENING TORQUE CLASS 12.9 Size Pitch Stress Area Core Area Tensile Strength Proof Strength Shear Strength Recommended Tightening Torque (mm) (mm²) (mm²) (kN) (kN) (kN) Plain (Nm) Zinc (Nm) M3 0.50 5.03 4.47 6.14 4.88 3.27 2.0 1.4 bolts, the value of tension may be appreciably less than that indicated by torque, hence these bolts has not been favoured for use on Indian Railways. Width of nut across flats The width of the hexagon nuts across flats s is specified in ISO 898-2 Table A.1 for bolt sizes M5 to M39. Recommended Maximum Bolt Loads and Torque Values (UNC Threads) UNC Quality P S T A/F in Newtons N.m lbf lbf.ft Newtons N.m lbf lbf.ft Newtons N.m lbf lbf.ft in 1/ 4 4379 5.43 984 4.00 8320 10.3 1870 7.60 8980 11.1 2018 8.19 7/ 16 5/ 16 7344 … The bolt … Torque Applied (N-mm, in-lbs) = Fastener Bolt Major Diameter (mm, in.) 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The torque values can only be achieved if nut (or tapped hole) has a proof load greater than or equal to the bolt's minimum ultimate tensile strength. TIGHTENING TORQUES FOR METRIC BOLTS of yield strength (Sy) MÉTRIQUE Diameter (mm) 6 8 10 12 14 16 18 20 22 24 27 30 33 36 39 42 45 48 52 56 60 64 68 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36 M39 M42 M45 M48 M52 M56 M60 M64 M68 PITCH (mm) 1 1.25 1.5 1.75 2 2 2.5 2.5 2.5 3 3 3.5 3.5 4 4 4.5 4.5 5 5 5.5 5.5 6 6 1688.com 浙公网安备 33010002000092号 at 100% of yield. Shipping and express will be tracked and reported at any time after sending. Clamp loads estimated as 75% of proof load for specified bolts. What is the torque for m24 bolt? Metric Grade 8.8 Bolts. Torque values listed in foot-pounds . A wide variety of m24 bolt torque options are available to you, such as material, type. Inch Bolt Torque Table Estimated with clamp load as 75% of proof load as specified in SAE J429 and ASME 574 Steel Grade SAE 5 SAE 8 Socket Head Cap Screws Minimum Tensile Strength PSI 120,000 150,000 1/4-1/2" 180,000 5/8-1" 170,000 Nominal Dia. | Popularly used in all assemblies, a standard hex bolt is a staple across the world. | Suppliers Torque = K.F m.d. Hex Head Bolts DIN 931 (ISO 4014) M24 in A2 Stainless Steel. μ th = Thread friction coefficient μ h = Under head friction coefficient 1 N = 0.225 lb 1 Nm = 0.738 ft-lb. M = P x D M = torque N.m 5000 P = bolt tension Newtons D = bolt dia. or it is 15-30 days if the goods are not in stock, it is according to quantity. Lubricating the bolts is the suggested method. The only way to determine a true torque value is by actual application. Each tool contains extra shear pins, and torque multiplication selection chart. Note: The torque values have been calculated using a very simple formula ref Bolt Preload. Section 1 Fastener Torque Specifications .....3 SAE Plain and Zinc Plated Hex and Socket Head Cap Screws .....4 Metric Plain and Zinc Plated Hex and Socket Head Cap Screws.....8 SAE Coated Hex Head and Socket Head Cap Screws Mated with Plain or Zinc Plated Threads.....9 SAE Coated Hex Head and Socket Head Cap Screws Mated with Coated Threads .....13 SAE Coated Hex Head Flange Screws … Q: Do you provide samples 9 is it free or extra 9 A: Yes, we could offer the sample for free charge but do not pay the cost of freight. Recommended Assembly Torques SAE Grade 5 Bolts & Screws – UNC Thread Bolt Tension Corresponding to 65% of Proof Load Recommended Assembly Torque Diameter Thread Per Inch (TPI) lbf lbft 1/4 20 1760 7 5/16 18 2890 15 3/8 16 4290 27 7/16 14 5880 43 1/2 13 … Used … | M24 3.00 M27 3.00 M30 3.50 M33 3.50 M36 4.00 M39 4.00 M42 4.50 M48 5.00 M56 5.50 M64 6.00 Surface Condition Torque Adjustment Factors Plain Steel, as supplied X 1.0 Plain Steel, degreased X 2.0 Zinc Plated, as supplied X 1.0 Zinc Plated, lightly oiled X 0.9 Galvanised, degreased X 2.1 Galvanised, lightly oiled X 1.1 Heavily greased X 0.7 RECOMMENDED ASSEMBLY TORQUES Class 4.6 ISO Metric … Classic 8.8 Bolts (Metric Coarse) Bolt Diameter x Pitch Thread Stress Area mm 2 *When μ = 0.14 Results in: Tightening Torque Nm; M20 x 2.5: 245: 464: M22 x 2.5: 302: 634: M24 x 3: 353: 798: What is a Class 8.8 bolt? Good after-sale service, we take care complaints as we want to be your long-term supplier. America Standard ASME B18.2.1 M24 Bolts UNC UNF steel Grade 2 Galvanized Hex Bolts, Products warm forged high tensile strength hex bolt Product Name Standard: warm forged high tensile strength hex bolt Size: 1/2”-4”,M5-M64 Thread: unc,unf,metric thread Material: carbon steel, alloy steel, stainless steel Finish: Plain, ZincPlated(Clear/Blue/Yellow/Black), black oxide, H.D. Definitions of terms are located below the chart. By Diameter and Material (Torque Values In Ft. Onetouch Alibaba.com offers 872 m24 bolt torque products. Q: How long is your delivery time9 A: Generally it is 5-15 days if the goods are in stock. - Most accurate bolt torque calculator given its geometry and thread diameter, using vdi 2230 standard, Screw Clearance through the specific tool 3D model 8. The nut has to be strong enough to be able to impart the necessary torque to the bolt and also withstand Bolting, DIN 6915 – Hex Nuts For High Strength Struc. | Country Search Tightening torque to preload a bolt Metric thread : M1 M1.2 M1.6 M2 M3 M4 M5 M6 M8 M10 M12 M14 M16 M20 M24 M30 M36 M42 - 3.6 4.6 4.8 5.6 5.8 6.8 8.8 9.8 10.9 12.9 TIGHTENING TORQUE FOR CLASS 8.8 BOLTS (METRIC COARSE) BOLT DIAMETER X PITCH THREAD STRESS AREA mm2 TIGHTENING TORQUE Nm PRE LOAD Kn TIGHTENING TORQUE Nm PRE LOAD Kn M5 x 0.8 14.2 7.4 5.2 7 6.5 M6 x 1 20.1 10.4 9 9.9 11.3 M8 … Mm These formulae may be used for bolts outside the range of the.. Range of the tables overleaf are in stock, it is 15-30 days if the goods are in stock it! Generation, transportation, shipping and maintenance industries the only way to a. Way to determine a true torque value is by actual application amp ; delivery all the package per. Outside the range of the lubricant Figures are a GUIDE only, therefore Lindstrom metric implies! 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