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The VALUE COLLECTION HWTCIF0310100US-050BX is a 5/16-18 UNC thread cutting screw designed for creating threads in pre-drilled holes in materials such as sheet metal, cast iron, and hard plastics. It features a hex washer head with a hex drive and a Type F point, which uses a blunt, tapered end with cutting edges to form clean internal threads without a tap. Constructed from Grade 2 steel with a zinc-plated finish, this screw provides corrosion resistance suitable for general-purpose industrial and mechanical applications. This box contains 50 screws. Electricians, HVAC technicians, plumbers, and general contractors reach for this fastener when assembling ductwork, panels, junction boxes, and equipment enclosures.
This thread cutting screw is suited for residential and light commercial applications where threading into unthreaded material is required. The 1-inch length under head accommodates standard material thicknesses found in sheet metal panels, electrical enclosures, HVAC equipment housings, and structural brackets. The hex washer head provides a wide bearing surface that resists pull-through and distributes clamping load evenly. The zinc-plated finish offers basic corrosion protection in dry to mildly humid indoor environments. Sold in a minimum quantity of 50 per order.
Designed as a general-purpose OEM-style thread cutting fastener for use in sheet metal, light-gauge steel, cast iron, and hard plastic assemblies requiring a 5/16-18 UNC thread.
Installation should be performed by a qualified tradesperson familiar with fastener selection and torque requirements for the base material. Always drill the correct pilot hole diameter for the material type before driving a Type F thread cutting screw to avoid cracking or stripping. Use a calibrated torque driver or impact driver with a hex bit sized to the head to prevent fastener damage. Do not overtighten, as Grade 2 steel has lower proof load than higher-grade fasteners.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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