Products & Services

Protocase manufactures fully finished custom electronic enclosures and associated parts from a wide variety of materials and components, in 2-3 days with no minimum order. Protocase also provides expert and affordable enclosure design services.

Self Clinching Blind-Threaded Fasteners

CNC Milling: Self-Clinching Fasteners

Machined parts generally use blind-hole PEM® brand self-clinching fasteners (whereas sheet metal is generally used with through-hole PEM® brand self-clinching fasteners).

Inserting PEM® brand self-clinching fasteners into blind holes has the extra benefit of a smooth finish on the opposite sides of sheet metal after the fastener is installed. These PEMS® can be used in sheet metal as thin as 0.075" (1.90mm).

Concealed fasteners for blind features are ideal when:

  • • Outside surface finish is important
  • • Metal is too thick for other stocked PEM® brand self-clinching fasteners
  • • Where protecting from air, liquid, or dust is extremely important

Protocase stocks the following PEM® brand self-clinching fasteners for blind milled holes:

CSS-440-3 CSS-632-4 CHA-440-4 CHC-440-4 CHC-632-8
CSS-440-4 CSS-632-5 CHA-440-8 CHC-440-6 CHC-632-12
CSS-440-5 CSS-632-6 CHA-632-4 CHC-440-8 CHC-632-16
CSS-440-6 CSS-632-8 CHA-632-8 CHC-632-4 CHC-832-6
CSS-440-8 CSS-832-4 CHC-440-12 CHC-632-6 CHC-832-8
CSS-M3-8 CHC-832-12