Value Collection JY4840369 Straight Flute Tap 1/4-36 Uns

Product Description

The VALUE COLLECTION JY4840369 is a straight flute tap designed to cut internal threads in a 1/4-36 UNS thread form. Built from high-speed steel (HSS) with a bright, uncoated finish, this tap is suited for general-purpose threading in ferrous and non-ferrous materials. The plug chamfer style provides a gradual lead-in over several threads, balancing starting ease with cutting performance. With an overall length of 2.5 inches and a right-hand thread direction, it fits standard tap handles and machine setups used in maintenance, tooling, and precision fabrication work. Machinists, tool and die makers, and maintenance technicians are the primary users.

This tap is used in machine shop, maintenance, and repair applications where 1/4-36 UNS internal threads are required. The UNS (Unified National Special) thread standard is common in specialty fastener, instrument, and precision equipment applications where standard thread pitches do not apply. The 4-flute design and plug chamfer make it appropriate for through-hole and moderately deep blind-hole threading operations in a variety of materials.

Key Features

• 1/4-36 UNS thread form for specialty threading applications outside standard coarse and fine pitch series
• 4 straight flutes for balanced cutting and chip management in through-hole and blind-hole work
• Plug chamfer with gradual lead-in for controlled thread engagement and reduced tap breakage risk
• High-speed steel construction provides hardness and wear resistance for production and maintenance use
• Bright, uncoated finish suitable for use with cutting oils and standard threading fluids
• H2 thread limit for close-tolerance internal thread production
• Right-hand thread direction; no coolant-through feature

Compatibility

Designed as a standard replacement or stock tap for applications requiring 1/4-36 UNS internal threads; fits standard tap handles and tapping heads accepting taps of this shank size and overall length.

Installation Notes

Tapping operations should be performed by a qualified machinist or maintenance technician familiar with cutting tool setup and feed rates. Always secure the workpiece and use an appropriate cutting fluid or tapping oil to extend tap life and improve thread quality. For machine tapping, verify spindle speed and feed rate are set for the material being threaded before engaging the tap. Inspect the tap for wear or chipping before each use and replace if cutting edges are degraded.