Value Collection 88546775 Hex Socket Cap Screw 5/16-18 Unc

Product Description

The VALUE COLLECTION 88546775 is a 5/16-18 UNC hex socket cap screw designed for secure, high-torque fastening in mechanical, industrial, and trade applications. The screw measures 2 inches in length under the head and features a 1/4-inch hex drive for use with a standard hex key or Allen wrench. Constructed from alloy steel with a black oxide finish, it offers solid tensile strength and moderate corrosion resistance in dry or lightly oiled environments. This package contains 13 screws. Partially threaded along the shank, it is suited for clamping applications where a smooth shoulder is needed between the bearing surface and the threaded engagement zone.

This screw is used across a wide range of trade and mechanical service work, including HVAC equipment assembly, electrical enclosure mounting, pump and motor fastening, and general equipment repair. The 5/16-18 UNC thread is a common coarse-thread standard found throughout North American mechanical equipment. The black oxide alloy steel construction makes it appropriate for indoor and protected installations. Technicians and mechanics across trades keep this size on hand for equipment teardowns and reassembly.

Key Features

• 5/16-18 UNC coarse thread — widely compatible with standard tapped holes in mechanical equipment
• 2-inch length under head — suits medium-depth fastening applications
• 1/4-inch hex drive — accepts standard hex keys and ball-end drivers
• Partially threaded shank — provides a smooth bearing surface for clamping joints
• Alloy steel construction — higher tensile strength than standard carbon steel fasteners
• Black oxide finish — mild corrosion resistance suitable for indoor and protected environments

Compatibility

Designed as a standard 5/16-18 UNC hex socket cap screw for use in any application requiring a coarse-thread fastener with a 1/4-inch hex drive and 2-inch length under head.

Installation Notes

Installation is performed with a 1/4-inch hex key or Allen wrench; a torque wrench with a hex bit socket is recommended for consistent clamping force in critical joints. Always confirm the tapped hole thread standard matches 5/16-18 UNC before installation. Power down or de-energize any equipment before disassembly or fastener replacement. Do not use impact tools without a rated hex socket adapter.