TP-4-2-38 | Rotary Shouldered Connection Thread Form Profiles | Tapered Thread Form Profile Gages | Thread Form Profiles

The Gagemaker TP‑4‑2‑38 is a precision tapered thread form profile gage designed for quick, reliable inspection of rotary shouldered connections. It provides a fast visual check of thread form accuracy, helping machinists and inspectors detect wear, damage, or machining errors before the connection is put into service.

Key Features

• Engineered for Rotary Shouldered Connections Ideal for verifying thread form integrity on premium and API‑style connections.

• Accurate Thread Form Verification Detects common thread issues including: chipped inserts, lead error, burrs, debris, flat crests, stretched threads, rolled‑over threads, and other form deviations.

• Precision Tapered Profile Specs

  • TPI: 4

  • TPF: 2"

  • Thread Form: V‑0.038

• Fast Visual Inspection Insert the profile into the threads and shine a light behind it to instantly reveal imperfections.

• Industrial‑Grade Durability Manufactured by Gagemaker for long‑term accuracy and dependable performance in both shop and field environments.

GAGEMAKER: TP-4-2-38: Thread Profile
4 Threads per Inch, 2.000 TPF, V-038R API NC 23 - 50 4" API Full Hole 3-1/2" - 5" Hughes eXtra Hole 2-3/8" - 4-1/2" Hughes Slim Hole 2-3/8" - 6-5/8" Internal Flush