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HAULK DEPOT

Bolt with Nut (SML) – 5/16" x 3-1/4" – For 7K-8K Equalizer | HD
SKU: 7BEQSM-HD
$9.20 USD $9.20 USD
Shipping calculated at checkout.
In stock
Description

The 5/16" x 3-1/4" Bolt with Nut from Haulk Depot is engineered for securing equalizers in 7,000–8,000 lb trailer suspension systems. Featuring a 5/16" diameter and durable construction, this bolt comes with a locknut to ensure secure and long-lasting performance under heavy-duty conditions.

Detailed Information:
Length 3.3"
Bolt Size 5/16"-18 x 3-1/4"
Included Components:
  • 1x Bolt
  • 1x Locknut
Fitting:

Compatible with equalizers used in 7K–8K lb trailer suspension systems. Suitable for a wide range of utility, equipment, and cargo trailers.

Features:
  • Precision Fit: 5/16" bolt size ideal for smaller equalizer mounts
  • Locknut Included: Prevents loosening under vibration and load
  • High-Strength Steel: Built for durability and corrosion resistance
Interchangeable Part Numbers:
  • KBN-516
Product Overview:

This 5/16" x 3-1/4" Bolt with Nut is designed for use with 7,000–8,000 lb trailer equalizers. Whether performing routine maintenance or installing new suspension components, it offers secure fastening and long-term reliability in high-stress applications.

We want you to be completely satisfied with your purchase. That’s why we offer a hassle-free return policy within 30 days of delivery*. If your item is unused, in original packaging, and eligible for return, you can send it back for a refund or exchange.

*Some exclusions may apply

Some of our products are backed by a 1-year limited manufacturer warranty covering defects in materials and workmanship under normal use. If you experience any issues during this period, we’ll work with you to repair, replace, or resolve it according to warranty terms.*

*Proof of purchase required

Need it fast? We’ve got you covered. Orders confirmed before 3 PM Eastern Standard Time (Monday–Friday) are processed and shipped out the same business day. Orders placed after the cutoff will ship the next business day.
Bolt with Nut (SML) – 5/16" x 3-1/4" – For 7K-8K Equalizer | HD

Customer Reviews

Based on 12 reviews
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M
Morey Chivers
High-Quality Bolt and Nut Set

The steel construction feels substantial and the 3-1/4" length was exactly right for my equalizer mount. Installation was straightforward and it's holding up well under load.

E
Enrique Rojas
Perfect Hardware for Equalizer Repair

Exactly what I needed for my 7K trailer suspension repair. The 5/16" size fit perfectly and the included locknut prevents any loosening. Quality hardware at a fair price.

G
Godfry Gyppes
Great Value for Suspension Hardware

These bolts are much better quality than generic hardware store alternatives. The locknut design keeps everything tight even with constant trailer vibration.

K
Keenan Govern
Reliable Fastener for Heavy-Duty Use

Used these on my equipment trailer equalizer replacement. The bolt threading is clean and the locknut provides excellent holding power. Very satisfied with the quality.

M
Michael Del Monte
Perfect Fit for My 8K Suspension

The 5/16" diameter and 3-1/4" length matched my equalizer specs exactly. Strong construction and the included locknut makes installation complete. Highly recommend!

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