SystemShield 1/4"-20 × 1" Hex Head Bolt

1/4"-20 × 1 in Hex Head Bolt

Short Description

Steel 1/4"-20 × 1 in hex head bolt for machine-fastened mounting applications in grounding, bonding, cabinet, enclosure, and equipment assemblies. Matching listings show zinc-plated steel, ASME B18.2.1 dimensional standard, 7/16 in wrench size, and 0.150 to 0.163 in head height for this size class.

Product Overview

The SystemShield 1/4"-20 × 1 in Hex Head Bolt is a machine-thread fastener intended for use with compatible nuts, washers, threaded components, and bracketed assemblies where a hex-drive head and coarse 1/4"-20 thread are required. Matching commercial listings identify this configuration as 1/4 in diameter, 20 TPI coarse thread, 1 in length, right-hand thread, and commonly fully threaded in this size/length offering.

For this size class, matching dimensional references show a 7/16 in width across flats, 0.150 to 0.163 in head height, and 0.428 to 0.438 in across-flats tolerance range under ASME geometry references. Matching listings also show zinc-plated steel construction for moderate corrosion resistance in general-use assemblies.

This fastener format is well suited for cabinet hardware, bracket mounting, enclosure assembly points, and bonded mechanical joints where a machine-thread hex bolt is preferred over a Phillips-drive screw.

Key Features

• 1/4"-20 coarse machine thread with 1 in nominal length
• Hex head for wrench-driven installation
• Steel construction for general mechanical fastening use
• Zinc-plated finish for moderate corrosion resistance
• ASME B18.2.1 dimensional standard reference
• 7/16 in width across flats / wrench size for this size class
• Commonly listed as fully threaded in 1 in length offerings
• Suitable for use with compatible 1/4"-20 nuts and washers in structured assemblies

Technical Specifications