Value Collection R52001118 Square Head Bolt 5/16-18

Product Description

The VALUE COLLECTION R52001118 is a square head bolt designed for general-purpose fastening applications. It features a 5/16-18 UNC thread size and a 1-inch length under head, machined from Grade 2 steel with an uncoated finish. The square head profile allows for wrench engagement on all four sides, which is useful in confined spaces or where slippage resistance is a priority. This bolt conforms to ANSI/ASME B18.2.1 standards, making it appropriate for structural and mechanical assemblies where dimensional consistency is required. Plumbers, HVAC technicians, electricians, and general tradespeople commonly use square head bolts in equipment mounting, pipe hangers, and utility connections.

This bolt is suited for light-duty to medium-duty fastening in residential and commercial construction, mechanical rooms, and utility installations. The UNC thread form is standard in North American trade work and mates with standard 5/16-18 nuts and tapped holes. The uncoated steel finish is appropriate for interior or protected installations where corrosion exposure is minimal. This SKU is sold individually but is subject to a minimum order quantity of 100 pieces, making it a practical choice for stocking in bulk for repetitive assembly work.

Key Features

• 5/16-18 UNC thread provides broad compatibility with standard North American hardware
• 1-inch length under head suits shallow fastening depth requirements
• Square head profile allows four-sided wrench engagement for positive torque transfer
• Grade 2 steel construction meets requirements for general mechanical and structural use
• Conforms to ANSI/ASME B18.2.1 for dimensional standardization
• Uncoated finish suitable for dry or protected interior installations

Compatibility

Designed as a standard 5/16-18 UNC square head bolt for use with any standard 5/16-18 nut or tapped hole conforming to UNC thread specifications per ANSI/ASME B18.2.1.

Installation Notes

Square head bolts are installed by general tradespeople, maintenance technicians, and journeymen across multiple trades. Always de-energize or depressurize the assembly before disassembling or replacing fasteners in any live system. Use an appropriately sized open-end or box wrench on the square head to avoid rounding the corners. Do not exceed the torque rating appropriate for Grade 2 fasteners at this thread size as specified by the applicable ANSI or equipment manufacturer guidelines.