Value Collection C703617 Hex Cap Screw 7/8-14 Grade 8

Product Description

The VALUE COLLECTION C703617 is a Grade 8 steel hex head cap screw in a 7/8-14 UNF thread configuration with a 3-1/2 inch length under head. This partially threaded fastener is manufactured to ASME B18.2.1 and SAE J429 standards, making it suitable for high-strength bolted joint applications where precise clamping force and thread engagement are required. The uncoated finish is typical for applications where the installer will apply a specified coating or where the service environment does not demand additional corrosion protection. Licensed tradespeople and maintenance technicians working in structural, mechanical, and equipment assembly contexts will find this fastener appropriate for demanding load-bearing joints.

This fastener is used in heavy-duty mechanical assemblies, equipment mounting, and structural bolted connections requiring a fine-thread UNF pattern. The 7/8-14 fine thread offers greater tensile strength and better resistance to loosening under vibration compared to coarse-thread equivalents at the same diameter. Typical installation scenarios include industrial machinery, automotive and heavy equipment fabrication, HVAC equipment frames, and general mechanical assembly where Grade 8 strength specifications are called out by engineering or code requirements. Sold in a package quantity of 10.

Key Features

• Grade 8 steel construction meets SAE J429 strength requirements for high-load bolted joints
• 7/8-14 UNF fine thread provides improved tensile strength and vibration resistance versus coarse thread
• Partially threaded shank allows for precise bearing load distribution in clamped assemblies
• Manufactured to ASME B18.2.1 dimensional standards for consistent hex geometry and fit
• Uncoated finish suitable for secondary coating application or dry indoor service environments
• Package quantity of 10 units per order

Compatibility

Designed as a standard UNF hex head cap screw for use in any application specifying a 7/8-14 Grade 8 partially threaded fastener per ASME B18.2.1 and SAE J429.

Installation Notes

Installation should be performed by a qualified mechanic or tradesperson familiar with torque specifications and bolted joint procedures appropriate to the application. Always consult the equipment manufacturer or engineering documentation for the required torque value before installation, as the correct value depends on the specific joint design and lubrication conditions. Ensure mating threads are clean and free of debris before assembly. Do not mix Grade 8 fasteners with lower-grade nuts or threaded inserts in critical load-bearing joints.