HN10 | Nut | 5/8-18 | Grade 8
+1-989-755-0561 1-800-358-4751

Nut | 5/8-18 Fine Thread | Grade 8


20+ In Stock as of 12/3/2021 11:19:05 PM EST.

5/8-18 Grade 8 Fine Thread Hi-Nut for threaded rod and U-bolts.

Product Specs for L&H HN10

  • Size:5/8"-18
  • SAE:8
  • Thread Type:Fine
  • MPN: HN10
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L&H HN10 Details

Customer Q&A - L&H HN10

What is the length of the nut? What is the outside diameter between the opposite flats, i.e. wrench size for tightening?

The length of the nut is .85 inches tall. They use a 15/16 wrench to tighten.


L & H Threaded Rods Corporation is one of the largest threaded rod and U-Bolt manufacturers in North America. They provide high quality U-Bolts and Threaded rod for the truck suspension industry. They are certified to ISO 9001:2008 and high quality is a top priority for all of their products. Their main products are U-Bolts for trucks and trailers and other suspension products including nuts, washers, and center bolts, etc. At TruckSpring, we have been working directly with L&H rods for decades and trust their products for holding your truck and trailer leaf springs in place and where they belong.

L&H Warranty

Limited Lifetime Warranty

On all L&H U-bolts and hardware. We warrant these products against defects in workmanship or material.

What the warranty does not cover

Damage from accidents, corrosion, improper installation, incorrect applications, overloading, or over-torqueing. This warranty does not cover loss of freight, loss of profit, equipment, or personal downtime. Any alteration of products will void the warranty.

How to get service

If an L&H product failure results from a manufacturer defect, contact us at Michigan Truck Spring for support. You can contact us by phone at 1-800-358-4751 or by using our contact form.

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