CSS-440-4 PEM

PEM concealed-head self-clinching studs and standoffs install permanently and promote smooth designs. CH CONCEALED-HEAD SELF-CLINCHING STUDS AND STANDOFFSCONCEALED-HEAD SELF-CLINCHING STUDS AND STANDOFFS Concealed-head self-clinching studs and standoffs install permanently and promote smooth designs: Install permanently in steel or aluminum sheets as thin as .062 / 1.6 mm to provide strong and reusable threads for mating hardware in a wide range of assembly applications. Allow the side of the sheet opposite installation to remain smooth and unmarred. One side installation additionally serves to satisfy strict ingress protection (IP) Concealed-head Stud requirements where the sheet must remain completely sealed from air, liquid, dust, gases or other potentially infiltrating elements. Only require a blind milled hole to the recommended size and minimum depth. Install using a PEMSERTER press or other standard press. (1) CFHC studs can be ordered to NAS63540/4 specifications. (1) To meet national aerospace standards and to obtain testing documentation, Type CFHC studs must be ordered using appropriate NAS63540/4 part number. Check our web site for a complete Military Specification and National Aerospace Standards Reference Guide (Bulletin NASM). Concealed-head Standoff Back side of sheet remains smooth Look for the PEM dimple trademark on studs and Fastener drawings the PEM two groove and models trademark on standoffs. are available at www.pemnet.com CH-2 PennEngineering www.pemnet.com