Inserts for Plastic Assemblies

Reusable metal threads enabling easy disassembly and reattachment.

Si Brand Inserts For Plastics

SI inserts from PennEngineering permanently install in plastic assemblies to provide durable and reusable metal threads for mating hardware.

By promoting quick and easy access to an assembly, SI inserts offer highly practical joining solutions in contrast to fixed and unyielding methods, such as adhesives or rivets.

  • Repeated reuse will not damage the strong metal threads or compromise attachment integrity.

  • Types include brass inserts and lead-free stainless steel and aluminum versions.

  • Applications include consumer electronics and plastic equipment or components for the medical, automotive, aerospace, transportation, and recreational industries.

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