Buyers Products UB623516 16 Inch Square Bend U-Bolt Kit - Durable

In this review of the Buyers Products UB623516 16 in Square Bend U-Bolt Kit, the bottom line is simple: this kit is for technicians and truck owners who need a straightforward, heavy duty way to mount truck boxes or attach bodies to a chassis. The single biggest reason to buy is the inclusion of forged 1/2 in tie bars combined with Grade 5 equivalent hardware, which together deliver reliable clamping strength for demanding truck mounting tasks. Installation is uncomplicated and the kit supplies all main fasteners needed for four mounting points.

Key Features

• Complete kit: Includes four 5/8 in square bend U-bolts, eight 5/8 in hex nuts, and split lock washers so installers have the core hardware for mounting four attachment points.
• Forged tie bars: The 1/2 in thick forged steel tie bars provide superior strength and resist bending under load, giving a robust connection between box and chassis.
• Grade 5 equivalent: Hardware rated to Grade 5 equivalent hardness ensures reliable clamping force for truck mounting and towing applications.
• Versatile lengths: Available in various lengths to match different truck chassis and frame thicknesses, helping achieve a proper fit without modification.
• Easy installation: The kit is designed for straightforward assembly so experienced mechanics and DIYers can complete mounting with common tools.

Who It's For

The kit suits truck fleet mechanics, pickup owners fitting utility or service boxes, and anyone needing to secure a body to a frame with proven hardware. It is particularly useful when a complete, matched set of U-bolts and tie bars is required for four mounting points.

This is not aimed at users who need custom bent rods, stainless hardware for corrosive marine environments, or metric fasteners; those buyers should look for specialty kits that match those specific requirements.

Pros & Cons

Pros

• Well made components deliver solid build quality and dependable clamping for truck box mounting.
• Forged 1/2 in tie bars add meaningful strength compared with thinner alternatives.
• Comprehensive hardware in the kit simplifies installation without hunting for extra parts.
• Good value for buyers needing four complete U-bolt attachment points.

Cons

• Some customers reported occasional missing nuts or lock washers in individual packages, so verify contents before installation.
• Material finish specifics are not detailed, so buyers wanting corrosion-resistant finishes should confirm suitability for harsh environments.

Specifications

U-bolt type	5/8 in square bend U-bolts
Quantity included	Four complete U-bolt kits (four U-bolts, eight hex nuts, split lock washers)
Tie bar thickness	1/2 in forged steel
Bolt grade	Grade 5 equivalent hardware
Intended use	Mounting truck boxes and connecting bodies to chassis
Length option	Various lengths available to fit different chassis

Our Verdict

The Buyers Products UB623516 kit is a practical choice for truck owners and mechanics who need strong, ready to install U-bolt hardware to mount boxes and attach bodies to frames. With forged 1/2 in tie bars and Grade 5 equivalent fasteners, it offers solid value and dependable performance, provided buyers inspect each kit on arrival for complete contents.

Frequently Asked Questions

Does this kit include enough hardware for four attachment points?
Yes, the kit supplies four U-bolts plus eight hex nuts and split lock washers, covering four attachment points.

Are the tie bars strong enough for heavy truck boxes?
Yes, the tie bars are forged 1/2 in thick steel, which provides superior strength for securely mounting truck boxes.

Is the hardware corrosion resistant?
The listing describes Grade 5 equivalent hardware and forged steel tie bars but does not specify a corrosion-resistant finish, so confirm suitability for corrosive environments before use.