Press Fit Pins | Cold-Formed High-Tolerance | Manufacturer

A press fit dowel pin is a precision cylindrical pin designed to be pressed into a mating hole in metal or plastic without threading, relying on tight dimensional tolerances for retention. Electropin's cold-formed dowel pins are available in lead-free brass or stainless steel with retention features such as star, spline, inscribed square, or flat to prevent rotation and ensure secure seating.

Electropin manufactures press fit pins in lead-free brass, stainless steel, and other metals. Lead-free brass is the most common choice for electrical connector applications, while stainless steel suits environments requiring greater mechanical strength or corrosion resistance. All materials are REACH and RoHS compliant, eliminating regulatory concerns associated with leaded brass.

Electropin offers four primary retention features: star, tabs/spline, inscribed square, and flat. The star feature can expand the pin diameter up to 50% greater than the raw wire diameter, providing exceptional pull-out resistance. Spline and inscribed square features add anti-rotation strength, making them ideal for PCB and molded plastic applications.

Electropin can begin manufacturing your custom press fit pins and deliver the first batch in as little as two weeks when raw materials are available. Subsequent batches are delivered on a customer-specified timeline, and production volume can be scaled dramatically to accommodate changing demand without compromising lead times.

Yes. Electropin's cold-forming process produces lead-free pins that inherently satisfy REACH and RoHS regulatory limits. Unlike machined parts that require leaded brass for machinability, Electropin's automatic die rolling works with lead-free materials, removing the need for special compliance documentation or material substitution downstream.

Cold-formed press fit pins are used across automotive connector assemblies, farm equipment electrical systems, PCB and circuit board manufacturing, medical device connectors, and computer and electronics products. Electropin's pins support through-hole PCB mounting, post-insertion into molded plastic, and direct press-fit into metal — covering the full range of industrial connector needs.