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Threading Tools Now Feature Self-Lock System to Eliminate Slippage

Emuge Corp. has announced its thread making tool quality is now available in a SELF-LOCK integrated locking system. Emuge SELF-LOCK threading tools offer a high-quality alternative in thread locking for vital safety applications in aerospace, medical, communications, transportation industries and more.

The Emuge thread locking feature is integrated in the internal thread, and has a modified profile with a 30 degree ramp surface in the direction of stress which provides the self-locking effect. In an ideal screw connection for high-stress situations, where there is a standard external thread in an Emuge SELF-LOCK internal thread, the internal thread yields a self-locking screw connection that can be used repeatedly.

"The special profile of the SELF-LOCK thread allows an even distribution of stress over the entire thread length and therefore eliminates slippage," said Mr. Mark Hatch, Product Director at Emuge Corp. "We are pleased to offer such a safety critical threading solution which results in no stripping of threads and is cost-effective because no additional components are necessary."

Compared with standard threads, the Emuge SELF-LOCK internal thread shows constant, maximum holding power under dynamic stress. Functions remain in good operation even with repeated loosening and re-tightening of the thread connection. This locking effect is caused by the ramp-shaped surface integrated into the thread profile.

SELF-LOCK technology results in increased threading tool life for larger thread hole diameters and provides larger tolerances for thread hole diameters. Also, assembly is easy with no assembly errors possible such as forgetting the locking device. To gage SELF-LOCK threads, Emuge recommends using its two-piece gage system which corresponds to the usual combination of a go/no-go gage.

Emuge SELF-LOCK Threading Tools work with standard external threads (screws) with tolerance class "medium." Internal threads can be produced with Emuge taps, cold forming taps or thread mills.

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