Value Collection MSC-04530283 Spiral Point Tap 1/4-28 Unf

Product Description

The VALUE COLLECTION MSC-04530283 is a spiral point tap designed for cutting 1/4-28 UNF threads in through-hole applications. Made from high speed steel (HSS) with a bright uncoated finish, this tap features a plug chamfer and 2-flute geometry that pushes chips ahead of the cut, making it well suited for threading operations where chip evacuation is critical. The H2 thread limit provides close tolerances for standard UNF fastener fits. Thread length is 1 inch. Right-hand thread direction follows standard UNF convention. This tap is sold individually and is a straightforward choice for machinists, maintenance technicians, and trade professionals threading steel, aluminum, and similar materials.

This tap is suited for general-purpose through-hole tapping in a shop or field maintenance environment. The plug chamfer style provides a gradual lead-in, making it appropriate for starting threads in pre-drilled through holes. The 1/4-28 UNF thread form is common in precision mechanical assemblies, plumbing fittings, electrical enclosures, and HVAC equipment where fine-thread engagement is required for vibration resistance or tight tolerances.

Key Features

• 1/4-28 UNF thread size for fine-thread through-hole applications
• Plug chamfer for standard through-hole starting and threading
• 2-flute spiral point geometry pushes chips forward ahead of the tap
• H2 thread limit for close-tolerance UNF thread fits
• High speed steel construction for durability in common metals
• Bright uncoated finish; no coolant-through requirement

Compatibility

Designed as an OEM-style replacement or direct-use spiral point tap for any application requiring a 1/4-28 UNF right-hand thread in through-hole workpieces.

Installation Notes

A licensed machinist or qualified maintenance technician should select the correct tap drill size for a 1/4-28 UNF thread before use. Always secure the workpiece and use a properly aligned tap handle or tapping machine to avoid tap breakage. Apply appropriate cutting fluid for the workpiece material. Power down any equipment and secure the work area before tapping threads in installed components.