Trailer Door Carriage Bolt 5/16 - 18 x 1 Barrel + Torx Nut Latch Hinge Cargo Van (516C1CB5Z-KIT)

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Carriage Bolt & Barrel Torx Nut Kit — 5/16-18 x 1"

Part Number: 516C1CB5Z-KIT

OEM-style hardware for cargo trailer bar-locks, cam handles, toolbox hasps, swing-door hinges, and any application requiring a secure, low-profile interior finish. Includes one carriage bolt and one flanged barrel Torx nut — the exact fastener style used across enclosed trailer manufacturers nationwide.

Kit Contents

Item	Specification	Qty
Carriage Bolt	5/16-18 x 1", Grade 5, Zinc, Square Neck	1
Flanged Barrel Torx Nut	5/16-18 x .597" L, T45 Torx / 7/32" Allen	1

Technical Specifications

Specification	Detail
Thread	5/16-18 (Coarse)
Bolt Length	1"
Material	Grade 5 Steel
Finish	Zinc Plated
Head Diameter	1"
Barrel Diameter	.430"
Required Tool	T45 Torx or 7/32" Allen
Bolt Pass-Through	No – Solid End Nut

Where This Fits

This specialty bolt + flanged barrel nut is widely used across **cargo trailers, utility trailers, enclosed trailers, motorcycle haulers, toolboxes, and locking hardware assemblies.**

Application	Typical Components	Why This Bolt/Nut Is Used
Bar-Lock Door Rods	Cam latch plates, lock-rod brackets	Low-profile interior + secure exterior head
Swing Door Hinges	Hinge plates, corner protectors	Prevents easy removal; Torx barrel increases security
Side Door Hardware	Locking handles, latch housings	Zinc plating resists corrosion in high-use areas
Interior Hasps	Tie-down rings, latch plates	Square neck locks bolt in place during tightening
Toolbox / Generator Box	Hinges, latch plates	Short depth fits tight spaces; clean interior finish

Why Choose This Hardware

Low-profile interior — no exposed bolt threads inside the trailer
Tamper-resistant Torx barrel nut increases security
OEM-style hardware used by top trailer manufacturers
Perfect for thin-wall trailer construction
Strong, corrosion-resistant zinc finish
Easy installation in tight spaces

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