WIRE FORM PINS
Built for Fit, Retention, and Repeatable Assembly
A wire form pin can look simple on a print, but small variation in wire diameter, bend geometry, springback, end condition, or plating can create assembly fallout fast.
Gromax supports wire form pin and precision wire form programs where retention, alignment, spring function, or contact behavior has to stay consistent at volume.
Precision Wire Form Pins
Custom wire-formed pins built from round wire for retention, locating, spring, latch, or contact functions.
Reliable fit and repeatable performance in assemblies where geometry and force behavior matter.
Custom Wire Forms for Functional Geometry
Formed wire components built to application-specific shapes including legs, offsets, hooks, loops, clips, and spring features.
One part can deliver retention, alignment, actuation, or contact function without unnecessary machining or assembly steps.
Material Selection Based on Function
Stainless steel, music wire, low-carbon steel, brass, phosphor bronze, beryllium copper, and other application-driven alloys.
Better match between spring performance, corrosion resistance, conductivity, manufacturability, and cost.
Springback & Form Stability Control
Process planning built around wire diameter, temper, bend radii, and free-state versus installed-state geometry.
More consistent form, insertion behavior, and retention at production scale.
End Condition, Burr & Mating Fit Control
Cut ends, tip shape, burr condition, and formed interfaces managed around the mating hole, slot, housing, or molded feature.
Smoother assembly, fewer fit issues, and less downstream damage.
Plating, Heat Treat & Finishing Support
Secondary processing coordinated as required, including plating, passivation, stress relief, heat treatment, and packaging.
Fewer supplier handoffs and components delivered ready for assembly.
Packaging That Protects Formed Geometry
Packaging and orientation planned to reduce tangling, deformation, cosmetic damage, and mixed lots.
Better usable yield and less line-side disruption.
Quality Deliverables & Compliance
nspection reports, SPC, PPAP, FAI/FAIR, and MSA/Gage R&R available as required; ISO 9001:2015 and ITAR-supported where applicable.
Easier approvals, stronger traceability, and confidence in regulated or high-spec programs.
frequently asked
questions
What is a wire form pin?
A wire form pin is a custom component made from round wire and formed to deliver a specific function in an assembly. Depending on the design, it may act as a retention pin, locator, spring feature, latch feature, or electrical contact.
What tolerances can you hold on wire form pins?
That depends on wire size, material, and form complexity. We review the critical dimensions on the print and build the process around the features that matter most to fit and function.
Can you control bends, end conditions, and mating fit consistently?
Yes. We control bend geometry, end condition, and mating fit to match how the part needs to perform in assembly, including insertion, alignment, and retention.
What are your lead times for samples, tooling, and production?
Lead time depends on part complexity, material availability, tooling, and volume. We provide a clear timeline based on the actual requirements of the part.
What has the biggest impact on part cost?
Material, wire diameter, form complexity, tolerances, secondary operations, finishing, and packaging usually drive cost. We can also suggest design changes that may help reduce cost.
Can Gromax support repeat production and consistent quality?
Yes. We support repeat production with controlled processes, consistent inspection, and packaging and delivery requirements matched to your program.
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