Where can I find torque for a bolt?
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. These torque calculations are estimates and are only offered as a guide.
What should the torque of a fastener be?
Reference 2 below recommends a fastener preload in the range of 60% – 90% of the bolt material proof load. This RepairEngineering bolt torque chart was created assuming a value at the mid-point of that range… at 75% of the material proof strength.
What are the factors that affect the torque of a bolt?
There are several factors that affect the relationship between the applied bolt torque and the resulting bolt tension. All of those factors are summarized in single variable that is known as the nut “K Factor”.
How much torque do I need for a screw?
Class 12.9 ISO Metric Coarse Pitch Bolts & Screws. Bolt Tension Recommended Corresponding to Assembly 65% of Proof Load Torque kN Nm 3.17 1.9 5.54 4.4 8.97 8.9 12.7 15 23.1 37 36.6 73 53.2 128 72.8 203 98.8 316 121 436 155 620 191 840 222 1066 289 1561 354 2124 437 2884 515 3708.
What are torque specifications?
Torque specifications are for dry threads only. The fastener threads should be free of oil, dirt, grit, corrosion, etc. The hardware should turn freely without binding when tightened by hand. It is important NOT to lubricate hardware threads or seats. The friction at which torque is measured against should come from the hardware seats.
What are the torque specs for vehicles?
What Are the Torque Specs for Vehicles AMC Trucks GM Trucks. A lot of things go between the engine block and oil pan that help components to go round and round, up and down. 5-Liter, Inline Four-Cylider. The base engine offered in the 1999 Ford Ranger is a 2.5-liter, inline four-cylinder motor. 0-liter V6. 0-Liter V6.
What is metric torque?
The metric (SI) unit of torque is the newton metre (Nm). In inch units, torque is usually measured as Lb-Ft (pounds feet) or Lb-In (pounds inch).
What is a torque screw?
Screw Conveyor Torque. Torque is defined as the twisting force exerted by the drive unit on the conveyor screw. Torque is transmitted through the drive shaft of the drive unit to the screw and converted to force to convey the bulk material.