Value Collection 8856CH5O Hex Head Cap Screw 7/8-14

Product Description

The VALUE COLLECTION 8856CH5O is a partially threaded hex head cap screw designed for high-load fastening applications in mechanical, structural, and industrial assemblies. It features a 7/8-14 UNF thread size and a 3-1/2-inch length under head, making it suited for applications requiring a fine-thread engagement with controlled clamp load. The fastener is manufactured from Grade 5 steel with a zinc-plated finish that provides baseline corrosion resistance in indoor and light-duty outdoor environments. Licensed tradespeople and mechanical contractors select this screw for equipment mounting, flange connections, and structural bracketing where UNF threads are specified.

This cap screw fits typical bolted joint applications in HVAC equipment mounting, plumbing support structures, electrical panel framing, and general mechanical assemblies. The partial threading allows the unthreaded shank to bear shear loads in bolted connections, a common requirement in machinery and equipment frames. It is sold individually and is appropriate wherever a 7/8-14 fine-thread fastener meeting ASME B18.2.1 and SAE J429 standards is specified on a drawing or bill of materials.

Key Features

• 7/8-14 UNF fine thread for precise torque control and vibration resistance
• 3-1/2-inch length under head accommodates thicker joint stacks
• Grade 5 steel construction meets SAE J429 minimum tensile strength requirements
• Zinc-plated finish provides corrosion resistance in dry and light-moisture environments
• Partially threaded shank carries shear loads in bolted flange and bracket joints
• Conforms to ASME B18.2.1 dimensional standards for hex head cap screws

Compatibility

Designed as an OEM-style replacement or direct-fit fastener for any bolted assembly specifying a 7/8-14 UNF hex head cap screw with a 3-1/2-inch grip length and Grade 5 or equivalent strength rating.

Installation Notes

Installation is typically performed by mechanics, millwrights, or licensed tradespeople using a standard 1-5/16-inch hex wrench or socket. Always consult joint design specifications or engineering drawings for the correct torque value before tightening. Inspect threads for damage before installation and ensure mating threads are clean and free of debris. Use an appropriate hardened flat washer when the joint design requires load distribution across the bearing surface.