Value Collection JY4871141 Hand Tap 1-5/16-16 Uns

Product Description

The VALUE COLLECTION JY4871141 is a straight-flute hand tap designed for cutting 1-5/16-16 UNS internal threads in metalworking and maintenance applications. Ground from bright, uncoated high speed steel, it delivers a 3B class of fit with an H4 thread limit, making it suitable for standard tolerance threaded assemblies where precision fit is required. The plug chamfer — typically 3 to 5 threads — allows the tap to start easily in through-holes or moderately deep blind holes. With 6 flutes, this tap produces clean threads while offering good chip clearance in a range of machinable metals. Overall length is 4 inches and the unit weighs 1 pound.

This tap is used in machine shops, maintenance and repair operations, and fabrication environments where UNS thread forms are specified. Plug-style hand taps in this size range are commonly used for re-threading damaged fastener holes, creating new threaded holes in fixtures and structural components, and production tapping where a hand-tap driver or tapping attachment is used. Right-hand thread direction suits standard fastener applications. This tap is intended for hand tapping operations and low-speed machine tapping setups.

Key Features

• 1-5/16-16 UNS thread form, right-hand direction
• Plug chamfer for easy starting in through-holes and moderately deep blind holes
• H4 thread limit with 3B class of fit for standard tolerance assemblies
• 6-flute straight-flute geometry for clean thread cutting and chip clearance
• Bright, uncoated high speed steel construction — no coating interference on thread form
• 4-inch overall length accommodates standard tap wrench and holder setups

Compatibility

Designed as an OEM-style replacement or direct-use hand tap for any application requiring a 1-5/16-16 UNS right-hand thread, 3B class of fit, in standard hand tapping or low-speed machine tapping setups.

Installation Notes

This tap is installed by machinists and maintenance technicians using a tap wrench or motorized tapping attachment. Always drill the correct tap drill diameter before threading and ensure the workpiece is securely fixtured. Apply cutting fluid appropriate to the workpiece material to extend tap life and improve thread finish. Avoid excessive force — if resistance increases sharply, back off to clear chips before continuing.