Do they make Grade 8 U bolts?
Grade 8 Bolts and fasteners are comprised of carbon-alloy steel, heat treated in a carbon controlled atmosphere and are generally the most durable and reliable fastener. Grade 8 bolts have the highest ratings with tensile strength of 150,000 psi.
What Grade are leaf Spring u Bolts?
Leaf Spring U-Bolts Are Available From Grade 5 To Grade 8.
What is a Grade 5 U bolt?
Grade 5 Bolts and fasteners are made of medium strength carbon steel and are specified under the Society of Automotive Engineers (SAE). Grade 5 bolts can often be identified by the 3 marks on the head. Each Grade 5 bolt from U-Bolt-It are available zinc plated.
What grade are U bolts on a truck?
The U-bolt grade is a measure of the material’s strength. Grade 5 and 8 are the most commonly used with grade 8 material offering an increase in yield strength of over 40% better than that of grade 5 material. This allows for higher torque levels, and thereby, improved spring clamping.
What is the strength of Grade 8 bolts?
150,000 PSI
A grade 8 bolt is the highest grade SAE bolt. Grade 8 bolts have a minimum tensile strength of 150,000 PSI. As a comparison, the ASTM A325 bolt is roughly equivalent to the SAE grade 5.
What is meant by 8.8 grade bolt?
Grade 8.8 Bolts are manufactured using medium carbon steel that has been quenched and tempered. Used in railroad equipment, motors, engines and processing equipment, grade 8.8 bolts exhibit good tensile strength and perform well in most environments.
What is the torque for a 7 8 U-bolt?
Recommended U-Bolt Torque for Cold-Formed U-Bolts
| Size | Material Grade | Max. Torque Ft. Lbs. Unplated |
|---|---|---|
| 3/4 – 16 | 8 | 313 |
| 7/8 – 14 | 8 | 500 |
| 1 – 14 | 8 | 1010 |
| 1-1/8 – 12 | 8 | 1131 |
Are U-bolts torque to yield?
U-bolts are a torque to yield bolt. This means when you tighten down a U-bolt to its proper torque spec, the bolt stretches to achieve that level of tightness. This means that if the nut is loosened back up or if it is retightened again, it is going to damage the threads on both the bolt and the nut.
What are Grade 8 bolts used for?
Grade 8 fasteners are considered hi-strength / high-tensile fasteners and are used in many highly industrial applications such as machinery, valves, pumps, vessels, motors, tractors, and even tanks… Although it may seem like a bolt is a bolt, there are significant differences in how each bolt is manufactured.