Experts in the development and manufacture of precision fasteners,
components and systems, specializing in thin sheet attachment solutions.

SI® Molded-In Inserts


Blind Threaded – Types IBA, IBB, IBC

blind threaded inserts IBA, IBB, IBC

Blind threaded inserts, types IBA (aluminum inserts), IBB (brass inserts) and IBC (stainless steel inserts) have a blind end, which protects the threads from plastic intrusion.

Self-Locking, Blind Threaded – Type IBLC

self-locking blind threaded inserts IBLC

Self-locking, blind threaded, type IBLC (stainless steel inserts) has deformed threads which lock the screw in place to resist vibration. The blind end protects the threads from plastic intrusion.

Thru Threaded – Types ITA, ITB, ITC

thru threaded inserts ITA, ITB, ITC

Thru threaded inserts, types ITA (aluminum inserts), ITB (brass inserts) and ITC (stainless steel inserts) include a pilot diameter and undercuts allowing the plastic to flow into grooves, providing high pullout resistance.

Thru Threaded, Knurled Spacers – Types STKA, STKB, STKC

thru threaded knurled spacers STKA, STKB, STKC

Thru threaded, knurled spacers, types STKA (aluminum inserts), STKB (brass inserts) and STKC (stainless steel inserts) include a uniform knurl diameter which reduces the risk of sink marks. Available in varying lengths for injection molding assemblies.

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