Hinge Pivot Pins | Precision Cold-Form Manufacturing

A pivot pin is a precision-machined or cold-formed cylindrical fastener that acts as the rotational axis for a hinge or mechanical joint. It locks into place via retention features such as star, spline, or inscribed square profiles. Electropin manufactures pivot pins in lead-free brass and stainless steel using cold-forming, achieving tolerances with a defect rate of just 1 in 600,000,000.

A hinge pivot is the mechanical assembly — including the pivot pin and its mounting interface — that enables rotational movement between two connected parts. In industrial and electronics applications, the hinge pivot must provide precise alignment, anti-rotational retention, and long-term durability. Cold-formed pivot pins from Electropin offer multiple retention features to ensure secure, consistent hinge operation across high-cycle applications.

Electropin manufactures hinge pivot pins in lead-free brass and stainless steel. Lead-free brass eliminates REACH and RoHS compliance concerns, making it ideal for electronics, medical devices, and automotive connectors. Stainless steel offers superior corrosion resistance for demanding environments. Both materials are cold-formed using automatic die rolling, ensuring zero scrap and consistent quality across every production run.

Electropin offers four retention feature options: Star, Tabs/Spline, Inscribed Square, and Flat. The star feature can expand pin diameter by approximately 50% beyond the raw wire diameter, delivering exceptional pull-out resistance and anti-rotation performance. These features are formed directly during cold-forming, requiring no secondary machining, and are available for both press-fit and post-insertion mounting methods.

Electropin's hinge pivot pins support press-fit into metal, post-insertion into molded plastic parts, through-hole PCB mounting, and high-speed automation line feeding. Pins designed for high-speed automation can slide down tracks without orientation, enabling seamless integration into existing production lines without costly tooling modifications or manual handling steps.

First-batch delivery of custom cold-formed hinge pivot pins can begin in as little as two weeks from order confirmation. Electropin's DFM consultation and rapid custom die creation process accelerates time-to-production. Subsequent batches are delivered on customer-specified timelines, with production rates of up to 5 pins per second supporting both small prototype runs and large-volume orders.