We are a professional manufacturer of Carbide Inserts, and can supply you with kinds of Threading Inserts at competitive prices.
The properties of Threading Inserts:
1. General purpose grade for Cast Iron, Steel, Stainless Steel;
2. Excellent toughness and hardness substrate;
3. PVD TiAlN coating extended for life.

Extensive range of threading inserts are as follows:
1. National pipe thread (NPT): 55°
2. Threading Inserts: 16NR/L 8 NPT
3. Partial profile: 55°, threading Inserts, 16NR/L AG55
4. Whit worth 55°, threading inserts, 16ER/L 12W
5. BSPT 55°, threading inserts, 16NR/L 8 BSPT
6. 60° ISO metric threading inserts, 16ER/L 1.0 ISO
7. 60° The US/UN, 16NR/L 20 UN
8. Whitworth 30° threading inserts, 16NR/L 2.0 TR
As well as  ISO, UN, WHIT, NPT, NPTF, TRAPEZ, ROUND, UNJ, MJ, PG, BSPT, ACME, API(oil field), and so on.