HN12 | Nut | 3/4-16 | Grade 8
+1-989-755-0561 1-800-358-4751

Nut | 3/4-16 Fine Thread | Grade 8


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20+ In Stock as of 10/19/2021 10:51:36 AM EST.

3/4-16 Grade 8 Fine Thread Hi-Nut for threaded rod and U-bolts.

Product Specs for L&H HN12

  • Size:3/4"-16
  • SAE:8
  • Thread Type:Fine
  • MPN: HN12
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L&H HN12 Details

Customer Q&A - L&H HN12

What size is this nut across the flats. i.e. what size wrench to use. Is the nut case hardened or hardened all the way through.

These are 1-1/8" across the flats. These are Grade 8 tempered steel. They are not case hardened.


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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