Fasteners are hardware devices that mechanically join or affix two or more objects together. They are used to create non-permanent joints, as opposed to welding.
This article summarizes common PEM fasteners, standoffs .Which provide threaded inserts and mounting points for sheet metal parts and PC boards.
- Concealed-Head – CSOS, CSS
- Keyhole® – SKC, SK4
- Blind, Threaded – BSO, BSO4, BSOA, BSOS
- Thru-hole, Threaded and Unthreaded – SO, SO4, SOA, SOS
- For Installing Into Stainless – BSO4, SO4, TSO4
- Thin Sheet, Thru-hole Standoffs – TSO, TSOA, TSOS
- Snap-Top® – SSA, SSC, SSS
- Grounding – SOAG, SOSG
- Close-To-Edge – DSO, DSOS
- microPEM®, Self-Clinching – MSO4, MSOFS
- Thin Sheet, Thru-hole Standoffs for Installation into Stainless Steel- TSO4
Concealed Head Standoffs – Types CSOS, CSS
PEM® self-clinching concealed-head standoffs install permanently in steel or aluminum sheets as this as .062″ / 1.6mm. This feature allows the side of the sheet opposite installation to remain smooth and untouched.
CSS– 300 Series Stainless Steel
KEYHOLE® Standoffs – Types SKC, SK4
PEM® KEYHOLE® standoffs are designed so that a PC board or panel can be quickly slipped into place and then removed from an assembly by simply sliding the board sideways and lifting it off. Type SKC can be used for spacing or hanging of replaceable components.
Blind, Threaded – Types BSO, BSO4, BSOA, BSOS
These standoffs are designed for spacing applications where outer sheet surfaces must be flush and closed for smoother sheet appearance.
CSS– 300 Series Stainless SteelBSO – Heat-Treated Carbon Steel
BSO4 – 400 Series Stainless Steel
BSOA – Aluminum
BSOS – 300 Series Stainless Steel
Thru-hole, Threaded and Unthreaded- Types SO, SO4, SOA, SOS
PEM® brand thru-hole threaded standoffs are installed with their heads flush with one surface of the mounting sheet. Unthreaded standoffs are also available for spacing multi-panel assemblies.
Install Into Stainless – Types BSO4, SO4, TSO4
Types BSO4 and SO4 standoffs are for installation into stainless steel sheets as thin as .040 ” / 1.02 mm.
SO4 – 400 Series Stainless Steel
SOA – Aluminum
SOS – 300 Series Stainless Steel
Thin Sheet, Thru-Hole – Types TSO, TSOA, TSOS, TSO4
Types TSO, TSOS, TSOA and TSO4 self-clinching threaded standoffs provide permanent threads in sheets as thin as .025 ” / 0.63 mm.
TSOA – 400 Series Stainless Steel
TSOS – Aluminum
SNAP-TOP® – Types SSA, SSC, SSS
PEM® SNAP-TOP® standoffs use a spring action to hold PC boards and subassemblies securely, while allowing for quick removal. Screws and other threaded hardware are eliminated.
SSC – 400 Series Stainless Steel
SSS – Heat-Treated Carbon Steel
Grounding – Types SOAG, SOSG
Types SOAG and SOSG grounding standoffs are designed for clinching into steel or aluminum chassis while the “gripping teeth” on the opposite end of the standoff firmly contact mating PC board.
SOSG – Stainless Steel
Close To Edge – Types DSO, DSOS
Types DSO and DSOS standoffs are available for close-to-edge applications.
DSOS – 300 Series Stainless Steel
Micro, Self-Clinching – Types MSO4™, MSOFS™
Type MSO4 micro standoffs are designed for mounting /spacing in extremely limited space applications. Type MSOFS micro flaring standoffs attach permanently in any type of panel, including metal, plastic and P.C. Board.
MSOFS – 300 Series Stainless Steel