Value Collection 403308BR Hex Head Cap Screw 7/8-9

Product Description

The VALUE COLLECTION 403308BR is a fully threaded hex head cap screw designed for general-purpose fastening applications in mechanical, structural, and industrial assemblies. It features a 7/8-9 UNC thread size with a 2-1/4 inch length under head, manufactured from Grade 2 steel with a zinc-plated finish for basic corrosion resistance. The hex drive requires a 1-5/16 inch wrench. This fastener is installed by mechanics, millwrights, pipefitters, and general tradespeople working across a wide range of bolted connection applications.

This cap screw is suited for light to moderate load-bearing bolted joints in residential, commercial, and industrial settings. Fully threaded construction makes it well-suited for through-bolt applications and short clamping lengths where thread engagement along the full shank is required. The zinc plating provides surface protection appropriate for indoor or sheltered environments where mild moisture exposure may be present.

Key Features

• 7/8-9 UNC thread form — standard coarse-thread inch fastener
• 2-1/4 inch length under head for consistent grip length measurement
• Fully threaded shank for maximum thread engagement in through-bolt configurations
• Grade 2 steel construction — meets general-purpose fastener strength requirements
• Zinc-plated finish for basic corrosion protection in sheltered environments
• 1-5/16 inch hex key size for standard wrench fitment

Compatibility

Designed as a standard UNC inch-series hex head cap screw for use in any application requiring a 7/8-9 fully threaded fastener with a 2-1/4 inch length under head.

Installation Notes

Install using a 1-5/16 inch open-end, box, or socket wrench. Ensure mating threads are clean and free of debris before assembly. Apply appropriate thread lubricant or anti-seize compound based on the joint material and service environment. Torque to the fastener manufacturer or equipment OEM specification for Grade 2 hardware — do not substitute Grade 2 fasteners in applications requiring higher-grade hardware without engineering review.