Value Collection 31847 3/8-16 Unc Hex Thread Cutting Screw

Product Description

The VALUE COLLECTION 31847 is a 3/8-16 UNC hex head thread cutting screw designed for fastening into materials that require the fastener to form or cut its own mating thread. With a 1-inch length under head and a Type F point, this screw is suited for use in metal assemblies where a pre-tapped hole is either unavailable or impractical. Manufactured from Grade 2 steel with a zinc-plated finish, it offers basic corrosion resistance for general-purpose indoor and light industrial applications. Installers in HVAC, plumbing, electrical, and mechanical trades reach for thread cutting screws when securing sheet metal panels, junction boxes, equipment housings, and structural brackets.

This screw is appropriate for use in light-gauge metal, sheet steel, and similar substrates where thread cutting rather than thread forming is required. The hex head drive style allows installation with a standard hex socket, nut driver, or wrench, making it practical in tight equipment enclosures and field service conditions. Typical applications include securing access panels on HVAC equipment, attaching electrical enclosure covers, and fastening mechanical components during equipment assembly or repair in both residential and light commercial settings.

Key Features

• 3/8-16 UNC thread size with 1-inch length under head for reliable engagement in light-gauge metal
• Type F point cuts threads into pre-drilled holes without a tap
• Hex head drive accepts standard socket, nut driver, or wrench
• Grade 2 steel construction provides adequate strength for general mechanical fastening
• Zinc-plated finish offers basic corrosion resistance for indoor and sheltered installations

Compatibility

Designed as a general-purpose hex thread cutting screw suitable for light-gauge steel and metal assemblies in HVAC, electrical, plumbing, and mechanical trade applications requiring a 3/8-16 UNC thread pattern.

Installation Notes

Thread cutting screws require a properly sized pilot hole in the receiving material before installation — consult standard drill size charts for 3/8-16 UNC thread cutting applications. Install with a hex socket, nut driver, or open-end wrench; avoid power driving at excessive speed, which can strip the cut threads. De-energize all electrical circuits and shut off any relevant mechanical systems before fastening into live equipment enclosures or panels. Follow applicable NEC or local mechanical code requirements for fastener type and spacing when securing electrical or HVAC equipment covers.