Value Collection 88547229 Hex Socket Cap Screw 7/8-9 Unc

Product Description

The VALUE COLLECTION 88547229 is a hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. The screw features a 7/8-9 UNC thread size and measures 3 inches in length under the head, with partial threading along the shank. It accepts a 3/4-inch hex drive, making it compatible with standard hex keys and socket drive tools. Constructed from alloy steel with a black oxide finish, this fastener delivers solid tensile strength and moderate corrosion resistance for indoor and controlled-environment use. Machinists, millwrights, and maintenance technicians commonly install this screw in equipment frames, fixtures, and mechanical assemblies.

This screw suits a wide range of applications including machinery assembly, tooling fixtures, fabrication work, and general industrial maintenance. The 7/8-9 UNC coarse thread engages quickly and provides strong clamping force in steel and cast-iron through-holes or tapped bores. The partially threaded shank offers a smooth bearing surface useful in applications requiring precise alignment or where the unthreaded section must pass through a clearance hole. It is sold individually.

Key Features

• 7/8-9 UNC coarse thread for fast engagement and strong clamping force
• 3 inches length under head for use in deeper or stacked-material applications
• Partially threaded shank provides a smooth bearing surface for alignment-critical assemblies
• 3/4-inch hex socket drive compatible with standard hex keys and socket tools
• Alloy steel construction delivers high tensile and shear strength
• Black oxide coating provides mild corrosion resistance and reduces light reflection

Compatibility

Designed as a standard UNC hex socket cap screw for use in tapped through-holes or blind bores requiring a 7/8-9 coarse thread fastener with a hex drive interface.

Installation Notes

Installation should be performed by qualified machinists or maintenance technicians using a calibrated torque wrench and the appropriate 3/4-inch hex socket or hex key. Ensure the receiving thread is clean, properly tapped, and free of debris before installation. Apply thread lubricant or anti-seize compound as required by the application to achieve accurate torque values. De-energize and lock out all equipment before fastener installation or removal on powered machinery.