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PEM Has New Self-Clinching Hardware, While Southco Releases New Rotary Latch

Product Updates, Southco, PEM

New fastener products were announced this week including a stainless steel rotary latch from Southco, and self-clinching nuts, studs, and standoffs that allow for close-to-edge-placement where space is limited.

Southco’s R4-10 Rotary Latch Now Available In Stainless Steel

Southco’s R4-10 Rotary Latch with Integrated Bumper is now available in a stainless steel version that offers corrosion resistance for consistent performance in harsh environments. The R4-10 with Integrated Bumper is available in single and two-stage options and features a design that traps the striker between a rubber bumper and rotor. Without extra clearance or room to move, any noise potential that could be caused by metal-on-metal movement or vibration is eliminated.

  • Stainless steel construction provides corrosion resistance in harsh environments
  • Integrated bumper eliminates noise and vibration
  • Two-stage cam design prevents false latching
  • Provides concealed latching with push-to-close convenience
  • Allows remote actuation when paired with Southco cables and actuators

These robust latching solutions for doors and panels of heavy-duty equipment and vehicles combine rotary-action security with push-to-close convenience. Their compact design provides concealed operation, while tolerating misalignment on closing, engaging easily with low closing force, and latching firmly with a snug, secure fit.

PEM's Self-Clinching Nuts, Studs, and Standoffs Fot Where Space Is Limited

Uniquely designed variations of PEM self-clinching nuts, studs, and standoffs from PennEngineering allow for close-to-edge placement in thin metal assemblies without compromising host sheet or fastener. Their engineering effectively reduces the standard minimum distance for “hole-centerline-to-edge” required for successful clinching to provide ideal solutions where space for fasteners is limited. Upon installation, the strong, durable, and reusable metal fastener threads readily accept mating hardware to complete the attachment process and will withstand repeated disassembly and reattachment of components without impacting fastener or thread integrity, reliability, and performance.

These clinch fasteners ultimately lock into place, become permanent parts of an assembly, and will not rotate, loosen, fall out, or otherwise cause problems in service.

PEM Type SMPS™ self-clinching threaded nuts are made from 300 Series stainless steel for high corrosion resistance and will install permanently in ultra-thin steel or aluminum sheets (.025” / 0.64mm or greater).  Their small diameter (.220” / 5.6mm) and low height (0.065” /1.4mm) provide an overall low-profile fastener solution and the center of the installed fastener can be as close as .145” / 3.7mm from the edge of a host sheet.  Thread sizes range from #2-56 through #6-32 and M2.5 through M3.5.

PEM Type FHL™ (steel) and Type FHLS™ (stainless steel) self-clinching threaded studs featuring low-displacement heads will mount up to 50% closer to the edge of an aluminum or steel sheet (compared with standard types) without causing a sheet’s edge to bulge.  Host sheets can be as thin as .040” / 1mm.  Thread sizes range from #2-56 through #10-32 and M2.5 through M5.

PEM Type DSOS™ self-clinching threaded stainless steel standoffs (optional steel versions available) serve to space or stack components in an assembly.  They will install flush into steel or aluminum sheets as thin as .037” / 0.94 mm and can be as close as .126” / 3.2 mm to a host sheet’s edge.  These fasteners are available in two lengths with thread sizes #4-40 and M3.

If you would like more information on Southco’s new stainless steel rotary latch or PEM's new self-clinching nuts, studs, and standoffs, contact your Tower representative at 800.688.6937, or by using our online information request form