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Archive >  October 2013 Issue >  Electronic Mfg. Products > 

PEM Self-Clinching Nuts for Restrictive Space
Self-clinching nuts.
Danboro, PA — PEM® Type SMPS self-clinching nuts introduce appropriate fasteners for ultra-thin metal sheet applications where design envelopes may be restrictive and space for attachment hardware may be limited. Installing permanently in steel or aluminum metal sheets as thin as 0.025-in.(0.64mm), their minimal edge-of-sheet to center-of-fastener distance is 0.145-in. (3.7mm), which enables close-to-edge mounting on a panel and a small diameter of 0.220-in. (5.6mm) and low height of 0.065-in. (1.4mm) which combine for an overall low-profile fastener solution.

These self-clinching nuts provide strong, durable, and reusable metal threads to accommodate a mating screw, which completes the assembly and eliminates any need for additional attachment hardware. A serrated clinching ring prevents the fastener from rotating after installation. In service, these nuts will not loosen, fall out, or otherwise adversely affect end-product integrity or performance. PEM Type SMPS nuts are made from 300 Series stainless steel, imparting high corrosion resistance, and can be supplied in unified or metric thread sizes #2-56 through #6-32 and M2.5 through M3.5. As a value-added option for specification when hardware must be installed prior to painting or similar operations, a PEM Blu-Coat thread mask can be specially applied in advance. Threads of the mating hardware during assembly will remove the paint, electro-deposited automotive undercoatings, or weld splatter upon application of torque.

Contact: PennEngineering, 5190 Old Easton Road, Danboro, PA 18916-1000 800-237-4736 or 215-766-8853 fax: 215-766-0143 Web:

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