What size are leaf spring bolts?
What size are leaf spring bolts?
Their are two common diameters of trailer Leaf Spring Bolts on most trailers, the 1/2 inch diameter, and the 9/16″ Diameter.
Can you reuse U-bolts for leaf springs?
Why can’t I reuse my U-bolts? This is one of the single most commonly asked questions out there when discussing leaf springs and related components. We get a variety of reactions when we advise our customers that reusing U-bolts is never a good idea.
Should you replace U-bolts on leaf springs?
U-bolts are a vital part of your suspension system and should never be reused. Failure to replace or properly fit your U-bolts when maintaining or servicing your suspension could cause premature failure of your leaf springs or other components with catastrophic results.
How do you measure bolts?
To measure the diameter of screws and bolts, you measure the distance from the outer thread on one side to the outer thread on the other side. This is called the major diameter and will usually be the proper size of the bolt.
What grade are leaf spring center bolts?
Grade 8
Product Description. American Automotive Grade 8 Leaf Spring Center Bolts are for axle leaf spring packs that center the multi-spring packs on an axle and with a powder-coated finish to prevent rust and harsh weather conditions. The diameter is 6″ length and the leaf spring center pin is 3/8″ of an inch.
How much do I torque leaf springs?
If you want to use a bolt as well as welding your leaf spring hangers, then you can follow the same torque specs as the leaf spring u-bolts. A 1/2 inch diameter bolts should be torqued between 45 ft/lbs and 70 ft/lbs.
How tight should you tighten U-bolts?
Tighten all U-Bolts until they are snug only. Tighten in the sequence shown to approximately 1/3 of recommended torque. Repeat, using the same sequence, gradually increasing the torque through a second and third stage until the recommended final torque is attained.
What happens if you reuse U-bolts?
Cut thread U-bolts are never a good idea to use because the threads tend to strip. Additionally, this means the U-bolts won’t be able to achieve near the torque spec that a rolled thread U-bolt can. The smallest amount of looseness or vibration in your U-bolts will allow for movement between your axle and leaf springs.
How are U clamps measured?
The length (L) is measured from end of bolt to inside of the bend, while the width (C) is measured between the legs. Some companies will show the length to the bottom or centerline of the bend instead of the top of the bend.