Value Collection 6288BMQ Square Head Bolt 5/8-11 Unc

Product Description

The VALUE COLLECTION 6288BMQ is a square head bolt designed for heavy-duty fastening applications where a wrench-friendly head profile is required. Sized at 5/8-11 UNC with a 5-1/2 inch length under head, this bolt meets ANSI/ASME B18.2.1 dimensional standards. Constructed from Grade 2 steel with an uncoated finish, it provides dependable tensile strength for structural, agricultural, and industrial assembly work. The square head profile allows positive wrench engagement in tight access conditions where hex heads may slip or be difficult to seat. Machinists, ironworkers, and maintenance technicians install these in fabrication and equipment assembly tasks requiring a reliable, standard-thread fastener.

This bolt is suited for general structural and mechanical assembly applications in both residential and light commercial settings. Typical installations include machinery frames, agricultural equipment, wooden structural connections, and general fabrication work where UNC coarse thread engagement is preferred. The uncoated steel finish makes it well suited for interior or dry-environment use. Sold individually, it allows single-unit procurement for replacement or low-volume assembly needs.

Key Features

• 5/8-11 UNC coarse thread for reliable engagement in standard tapped holes and nuts
• 5-1/2 inch length under head accommodates deeper grip applications
• Square head profile provides positive wrench purchase and resists rounding under torque
• Grade 2 steel construction meets general-purpose strength requirements
• Meets ANSI/ASME B18.2.1 dimensional standard for consistent fitment
• Uncoated finish suitable for interior and protected-environment installations

Compatibility

Designed as an OEM-style replacement or new-installation fastener compatible with any application requiring a 5/8-11 UNC square head bolt conforming to ANSI/ASME B18.2.1 specifications.

Installation Notes

Installation is performed by qualified tradespeople using standard open-end, box, or adjustable wrenches sized for a 5/8-11 UNC square head bolt. Ensure mating threads are clean and free of debris before installation. Use appropriate thread-locking compound or hardened washers where vibration or load cycling is a concern. Follow applicable structural or mechanical codes for torque and fastener spacing requirements.