PEM SNAP-TOP® SSS™ standoffs are self-clinching fasteners designed for permanent installation into metal panels or PC boards, using spring action to securely hold subassemblies while allowing quick removal without screws. The SSS-156-18ZI variant is made of carbon steel with a zinc plating per ASTM B633, SC1 (5µm), Type III, colorless, plus clear chromate. It has a 156 mounting hole diameter of 0.188 inches and a length of 0.562 inches. Installation forces, pushout resistance, and snap forces are specified for its material and dimension. It is compatible with panels of 0.040 to 0.070 inch thickness and meets performance criteria for carbon steel installations. The 'ZI' finish indicates the specified plating. Part numbers in this series are permanently installed by pressing into a correctly sized hole.
PEM SNAP-TOP® Standoffs (Types SSA, SSS, SSC) are designed for permanent installation into metal panels or PC boards.
These all-metal standoffs use a spring action to hold PC boards and subassemblies securely, while allowing for quick removal. Screws and other threaded hardware are eliminated. This means less parts to handle during assembly and less risk of damaging delicate circuitry because of loose parts falling into your equipment.
These standoffs are permanently installed in the panel by squeezing them into a properly sized hole using any standard press.
| PennEngineering® | bisco industries | |
|---|---|---|
| Product Category | Posts, Spacers, and Standoffs | Posts, Spacers, and Standoffs |
| Product Number | SSS-156-18ZI | SSS-156-18ZI |
| Product Name | SNAP-TOP Standoffs - Types SSA, SSC, SSS - Unified | Steel Standoffs |
| Type & Shape | Standoff; Round | Standoff |
