How do you calculate torque sequence?
Begin with the formula T = K x U x D x P, where T is the torque, K is a standard representing 1.33, U is the coefficient of friction, D is the diameter of the fasteners, and P is the necessary preload.
What are the factors that determine a torque?
Expert Answer:
- The factors on which the turning effect of force or torque acts are:
- – The magnitude of the applied force.
- – The distance of the line of action of force from the point of rotation of that body.
What is a prevailing nut?
A locknut, also known as a lock nut, locking nut, self-locking nut, prevailing torque nut, stiff nut or elastic stop nut, is a nut that resists loosening under vibrations and torque.
Can you reuse a prevailing torque nut?
The nuts spin freely until their distorted top threads engage the threads of the mating part. Prevailing torque lock nuts are reusable a limited number of times because the prevailing torque declines each time the nut is used.
What is the torque on a 1 inch bolt?
US Recommended Bolt Torque
| Size | Recommended Torque | |
|---|---|---|
| Grade 2 | 18-8 S/S | |
| 3/4″ | 125 | 128 |
| 7/8″ | 129 | 194 |
| 1″† | 188 | 287 |
How much torque can a 1/2 inch bolt take?
ASTM A449 / SAE Grade 5*
| Bolt Size | TPI | Tightening Torque (ft lbs) |
|---|---|---|
| Galv+Waxed | ||
| 1⁄2 | 13 | 38 |
| 9⁄16 | 12 | 54 |
| 5⁄8 | 11 | 75 |
What is the torque for 1/2 Grade 8 bolt?
Tightening Torque Guide for Grade 5 & 8 Hex Cap Screws
| GRADE 5 | GRADE 8 | |
|---|---|---|
| Coarse Thread | Coarse Thread | |
| 7/16-20 (.4375) | 7575 | 7/16-20 (.4375) |
| 1/2-20 (.500) | 10200 | 1/2-20 (.500) |
| 9/16-18 (.5625) | 12975 | 9/16-18 (.5625) |
What is the torque on a 5’8 stud?
In general, 1/2-inch studs typically have a torque range of 75 to 85 foot pounds; 9/16-inch studs range from 135 to 145 foot pounds; 5/8-inch studs run from 190 to 210 foot pounds.
How much torque does it take to break a Grade 8 bolt?
My book shows a standard dry torque of 119 ftlbs for 1/2 grade 8. Metalman, The link Lawrence provided is a great tool, but also try to remember why those numbers are there. For example, a grade 8 can hold more than a grade 5 because it is stiffer.
What is the torque for a 8mm bolt?
What is the torque for a 8mm bolt?
| Bolt Size | 8.8 | 10.9 |
|---|---|---|
| 6mm (M6) | 9Nm | 13Nm |
| 8mm (M8) | 23Nm | 33Nm |
| 10mm (M10) | 45Nm | 65Nm |
| 12mm (M12) | 80Nm | 115Nm |
Is a 10.9 Bolt stronger than Grade 8?
Class 10.9 is stronger than class 8.8. It is commonly found in high strength automotive applications. Class 10.9 is similar to grade 8.