(Issued 5/10/10)

OFFERED IN A VARIETY OF TYPES AND LOCKING-FEATURE STYLES:
PEM® SELF-CLINCHING PREVAILING TORQUE LOCKNUTS
PREVENT MATING HARDWARE FROM LOOSENING

PEM® self-clinching prevailing torque locknuts provide ideal solutions to prevent mating hardware from loosening in service due to vibration or other application-related factors. This growing family of fasteners includes a variety of types and different locking-feature styles to satisfy a wide range of applications. Their use can save time and money compared with alternative chemical locking methods or patches.

PEMHEX® locknuts integrate a nylon hexagonal element to create a reusable, non-metallic prevailing torque thread lock that eliminates possible galling and any need for lubricant; TRI-DENT® locknuts achieve prevailing locking torque using an indenting process that deforms the top thread; PEMFLEX® locknuts feature two rugged, semicircular flexing jaws that prevent loosening of mating hardware in especially severe service applications; and miniature locknuts and floating types develop prevailing locking torque through a process that elliptically squeezes the tops of the fasteners. All PEM clinch locknuts install permanently in thin metal sheets.

Depending on type, PEM locknuts demonstrate thread-locking performance equivalent to applicable NASM25027 specifications or meet relevant IFI or ANSI torque requirements. Versions are available in steel, stainless steel, or aluminum and in thread sizes from #2-56 and M2.5 through #10-32 and M5.

Contact Michael J. Rossi, PennEngineering®
5190 Old Easton Road, Danboro
PA 18916-1000 USA
Phones: 800-237-4736 (toll-free in the U.S.) or 215-766-8853
Fax: 215-766-0143
Web site: www.pemnet.com