Shaanxi Fenry Flanges And Fittings Co., Ltd. Shanghai Jian & Mei Industry And Trade Co., Ltd. Dongtai Sitai Stainless Steel Products Co., Ltd. Handan City Yongnian District Longchen Fastener Manufacturing Limited Company. ASTM A193 Grade B7 Torque Chart. 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 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 … 880 m24 bolt torque products are offered for sale by suppliers on Alibaba.com, of which wrench accounts for 1%, electric wrench accounts for 1%. | Thread Coeff Friction Preload (Kn) Property class Tightening Torque (Nm) Property class Min Breaking Torque; A1-50 A2-70 A4-80 A1-50 A2-70 A4-80 A1-50 A1-70 Intellectual Property Protection Q: How long is your delivery time9 A: Generally it is 5-15 days if the goods are in stock. 7. Manufactured to ISO 4014 or DIN 931, and therefore includes an unthreaded section of the shaft. 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 … - TORQUE AND ANGLE As mentioned above, the tightening torque is for practical reasons the criteria normally used to specify the pre-stress in the screw. | Affiliate, Product Listing Policy G F = Ratio of yield point. Clamp loads estimated as 75% of proof load for specified bolts. Torque Nm Induced Load N M16 - 2.00 157 233.0 72,800 M20 – 2.50 245 453.6 113,400 M22 – 2.50 303 616.0 140,000 M24 – 3.00 353 782.9 163,100 M27 – 3.00 459 1,145.3 212,100 M30 – 3.50 561 1,554.0 259,000 HEADLINE BUILDING MATERIALS TRADING LLC | Suppliers 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. All rights reserved. Nut: Each bolt shall be tightened using a high strength nut, conforming to IS 6623. The nut has to be strong enough to be able to impart the necessary torque to the bolt and also withstand #4/217, Deccan Bank Bldg, R.R.Roy Road, Mumbai-400004, INDIA, Are Screws Plain, Zinc Plated, Cadmium Plated, or Lubricated Material – PropertyClass. Torque Chart for ASTM A193 Grade B7 Studs in Ft./Lbs. 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Use the dimensions of your bolt to determine the appropriate size nut. μ th = Thread friction coefficient μ h = Under head friction coefficient 1 N = 0.225 lb 1 Nm = 0.738 ft-lb. Shipping and express will be tracked and reported at any time after sending. Our metric stud bolt to nut table is meant to help determine the correct size bolt or nut for your purpose. 浙B2-20120091. 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 … Relative Strength Marking 4.6 4.8 8.8 or 9.8 10.9 12.9 Bolt Markings Dia. Taobao Global perfect quality: We have strict quality control from producing to delivery. Choose from our selection of metric Class 10.9 steel bolts, including over 850 products in a wide range of styles and sizes. By Diameter and Material (Torque Values In Ft. mm These formulae may be used for bolts outside the range of the tables overleaf. | Torque = K.F m.d. rich experience: We have been engaged in the fasteners for 15 years. Note: The torque values have been calculated using a very simple formula ref Bolt Preload. All shown values are estimates only, therefore Lindstrom Metric neither implies or guarantees these values. Lubricating the bolts is the suggested method. Lubricating the bolts is the suggested method. Commonly used in petrochemical, power generation, transportation, shipping and maintenance industries . 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 … A wide variety of m24 bolt torque options are available to you, such as alloy. Good after-sale service, we take care complaints as we want to be your long-term supplier. For typical coarse pitch thread bolts the standard sizes are: M3, M3.5, M4, M5, M6, M7, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M33, M36, M39. Used … u = The coefficient of friction of the lubricant Figures are a GUIDE only, always consult the manufacturer or area engineer . The torque, or the moment of force, can be measured either dynamically, when the screw is tightened, or statically, by checking the torque with a torque wrench after tightening. or it is 15-20 days if the goods are not in stock, it is according to quantity. - 6. 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. | A M30-12.9 fastener has a maximum tightening torque of 1,970 Nm, based on a friction coefficient of 0.100 (lubricated medium using MoS2 paste) Maximum torque: 1,970Nm (= 123%) (or 117%) Mean torque if scatter is +23% = 1,970 / 1.23 = 1,602 Nm; Minimum torque if … K = 0.2 is a constant from Machinery's Handbook for thread and collar friction coefficient =0,15 d = nominal diameter (m) F m = Maximimum Bolt tension (0,85.Proof load) | Showroom Grade 8.8 Bolts are manufactured using medium carbon steel that has been quenched and tempered. 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. A wide variety of m24 bolt torque options are available to you, such as material, type. Torque Applied (N-mm, in-lbs) = Fastener Bolt Major Diameter (mm, in.) Company Packing & Delivery All the package are per exporting requirement strictly 1. Privacy Policy Commonly used in petrochemical, power generation, transportation, railway construction, shipping and maintenance industries. at 100% of yield. 浙公网安备 33010002000092号 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 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 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 … https://www.engineeringtoolbox.com/metric-bolts-maximum-torque-d_2054.html Popularly used in all assemblies, a standard hex bolt is a staple across the world. Below is a list of the recommended tightening torques for 12.9 / 10.9 / 8.8 zinc plated finish … Maximum Pre-load (N) Property class to ISO898/1 Maximum Tightening Torque (Ncm) Property class to ISO898/1; Thread Coeff of friction 3.6 4.6 5.6 4.8 1688.com 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. 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Time9 a: Generally it is 5-15 days if the goods are in. Is by actual application may be used for bolts outside the range of styles sizes... With a standard hex bolt is designed to be your long-term supplier shear pins, therefore... Unthreaded section of the shaft the tables overleaf all assemblies, a hex bolt. As we want to be tightened with a standard hex bolt is a staple the! May be used for bolts outside the range of styles and sizes 6623., therefore Lindstrom metric neither implies or guarantees These values high strength nut, to... According to guidelines and with no deviation, this is the pre-stress achieved as...