Bolt torque chart reference guides include Grade 2, B7, A307, A325, Grade 8, A490, and Grade 5. AFT Fasteners is your trusted source for fastener information.
Bolt SizeTPIProof Load (lbs) 1Clamp Load (lbs) 2Tightening Torque (ft lbs) PlainLubricated 1⁄4 20 3,800 2,850 12 6 5⁄16 18 6,300 4,725 25 12 3⁄8 16 9,300 6,975 44 22 7⁄16 14 12,750 9,563 70 35 1⁄2 13 17,050 12,788 107 53 9⁄16 12 21,850 16,...
Metric Bolt torque chart Metric fine thread Bolt torque chart Trapezoidal thread Cabel gland Trapezoidal thread (technical data) Overview of technical data for metric threads Metric thread - tightening torque Metric thread - pitch Metric thread- tap drill chart ...
was used to provide the chart's values, but it must be understood that every bolted joint is unique and the optimum tightening torque should be determined for each application by careful experimentation.A properly tightened bolt is one that is stretched such that it acts like ...
(nut face or bolt head). This is illustrated in the piechart shown above. Relatively small changes in the nut face friction can have a significant effect on the bolt preload. As more torque is perhaps needed to overcome friction, less remains for the bolt extension and hence as the effect...
It's important to refer to a specific torque chart because the exact value varies with the bolt's grade and the material it's fastening. Always use the correct specification for safety and effectiveness. What is the ISO standard for tightening torque? The ISO standard for tightening torque ref...
5) end cover bolt torque 端盖螺栓扭矩6) cylinder head bolt 缸盖螺栓 1. Research of tightening technology for cylinder head bolt; 发动机缸盖螺栓拧紧工艺研究 2. According to the numerical simulation of heavy-duty diesel engine to raise power,two methods to assess the strength of cylinder ...
The following suggested tightening torques provide an excellent starting point for determining torque requirements. Remember, you may need to vary these numbers somewhat based on the individual joint or the amount of fastener lubrication.
SeeTorque Force Design Equationswebpage and torque chart page for recommended fastener torque and equation data. This calculator uses a practical starting point for all threaded fastener tightening analysis and uses the basic elastic torque-tension equation. ...
Combined with expert reasoning, the zero-point torque value of the seal ring is estimated online. Abasolo M [12] proposed an optimization method of tightening sequence based on finite element, and calculated the force applied to each bolt. Finally, at the end of the sequence, a relatively ...