Value Collection 88547252 Hex Socket Cap Screw 7/8-9 Unc

Product Description

The VALUE COLLECTION 88547252 is a partially threaded hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. Sized at 7/8-9 UNC with a 5-inch length under the head, this fastener is driven by a 3/4-inch hex (Allen) key. The body is machined from alloy steel and finished with a black oxide coating, which provides mild corrosion resistance and reduces light reflection on finished assemblies. Trades and maintenance professionals specify this screw where a flush, recessed-drive fastener is needed in place of a traditional hex head bolt.

This cap screw is suited for heavy equipment maintenance, machinery assembly, tooling fixtures, and structural fabrication where a high-tensile, partially threaded fastener is required. The 7/8-9 UNC coarse thread pitch is standard in North American mechanical and industrial applications, making this screw a common replacement or addition in manufacturing and MRO environments. It is appropriate for use in both OEM production and field repair situations.

Key Features

• 7/8-9 UNC coarse thread for reliable engagement in standard tapped holes
• 5-inch length under head provides grip in thicker workpieces or stacked assemblies
• Partial threading allows the unthreaded shank to serve as a precision locating surface
• 3/4-inch hex drive socket head for high torque input with a standard hex key or socket driver
• Alloy steel construction supports heavy load and shear force requirements
• Black oxide finish provides mild surface protection and a clean, non-reflective appearance

Compatibility

Designed for use in any application requiring a 7/8-9 UNC partially threaded socket cap screw with a 5-inch length under head, including heavy industrial machinery, structural fixtures, and fabricated assemblies that use standard UNC tapped holes.

Installation Notes

Installation is performed by millwrights, machinists, maintenance technicians, or experienced tradespeople using a 3/4-inch hex key, T-handle, or socket driver. Always verify the receiving tapped hole thread specification matches 7/8-9 UNC before installation. De-energize, lock out, and tag out any equipment before servicing fasteners in powered assemblies. Do not exceed the fastener's rated clamp load and consult applicable torque references for alloy steel cap screws of this diameter and grade before final tightening.