Osg 1400121400 Thread Forming Tap 10-32 Unf Plug Cobalt

Product Description

The OSG 1400121400 is a thread forming tap designed for producing 10-32 UNF internal threads through a cold-forming process that displaces material rather than cutting it. Built from cobalt high-speed steel with a bright finish, this plug chamfer tap is engineered for right-hand threading in through-hole applications. It carries a H5 thread limit and a Class 2B fit, making it suitable for precision threading in demanding industrial and manufacturing environments. The 4 to 4.5 thread chamfer length eases entry and distributes forming load across multiple threads. This tap is part of the OSG HY-PRO NRT series.

This tap is intended for through-hole threading in materials including alloy steel, carbon steel, die steel, hardened steel, stainless steel, and aluminum. It is well-suited for machine shop, production floor, and maintenance-repair-overhaul applications where chip-free threading is required and through-hole access is available. The forming action produces stronger threads than cut taps by work-hardening the thread form, making it a common choice when threading ductile metals under high-volume or precision conditions.

Key Features

• Thread forming design displaces material rather than cutting, eliminating chips in through-hole applications
• Cobalt high-speed steel construction provides heat and wear resistance in tough alloys and stainless steel
• Plug chamfer with 4 to 4.5 chamfered threads for guided entry and distributed forming load
• H5 thread limit and Class 2B fit for consistent, precision thread geometry
• Right-hand thread direction, compatible with standard tapping equipment and CNC machining centers
• Bright finish with no coolant-through requirement, suitable for use with external cutting fluids

Compatibility

Designed for through-hole threading applications in alloy steel, carbon steel, die steel, hardened steel, stainless steel, and aluminum workpieces requiring a 10-32 UNF Class 2B thread form.

Installation Notes

This tap is installed and operated by machinists using tapping heads, CNC machining centers, or hand tapping equipment rated for the 10-32 thread size. Ensure the workpiece is securely fixtured and that proper cutting fluid or tapping compound is applied for the specific material being threaded. Thread forming taps require higher torque than cut taps, so verify that the tapping machine torque capacity is appropriate before use. Do not use thread forming taps in blind holes, as the forming process requires chip-free through-hole access.