Imported Kato UNC4-40 1D 2D Stainless Steel Tangless Thread Insert, Thread Repair Coil

Thread inserts without a tang, also known as tangless thread inserts, are a special type of wire thread inserts. Tangless thread inserts have a fishhook-like locking groove—"reverse barb groove"—on both ends. During installation, specialized installation tools are used, and there is no need to distinguish the direction of the insert, allowing for direct installation. This feature is unmatched by traditional tang-type inserts, significantly improving work efficiency.

Since tangless thread inserts do not have an installation tang, the step of removing the tang is eliminated, further enhancing work efficiency and completely avoiding various issues caused by tang removal.

Material: Stainless Steel 304
Specifications: M2-M12 Standard Type
M2.5-M12 Locking Type

Advantages of Tangless Thread Inserts:
a) Tangless design allows for bidirectional installation without the need to distinguish direction during installation.

b) Damage-free design: No tang breakage, repair, or loss; damage-free removal prevents damage to castings.

c) When installed in threaded holes, they evenly distribute stress, expand the threaded load-bearing surface, improve connection conditions between threads, and increase the load-bearing capacity and fatigue strength of threaded connections.

d) High resistance to corrosion, preventing threaded holes and bolts from rusting.

e) Locking-type tangless thread inserts offer anti-loosening performance for screws.

f) They enable quick repair of damaged threaded holes.

g) Compliant with NA0276 and NAS1130 standards, suitable for various military and civilian projects.