contacts & terminals
Built for reliable fit and conductivity.
Gromax manufactures precision stamped contacts and terminals from conductive and spring materials, with tight tolerances, plated finishes, and progressive tooling for reliable high-volume production.
part examples
A selection of contacts and terminals we manufacture:
Connector Terminals
Precision stamped conductive terminals designed for consistent electrical connection, secure retention, and reliable mating performance in connector systems.
Power Contacts
High-current stamped conductive contacts designed for efficient power transfer, controlled heat generation, and reliable electrical performance in demanding power applications.
Quick-Connect Terminals
Reliable stamped conductive terminals designed for fast, repeatable electrical connections with consistent fit, retention, and conductivity in power and control assemblies.
Spring Contacts
Precision formed conductive contacts designed to maintain consistent electrical connection through controlled spring force, contact pressure, and repeated engagement.
Battery Contacts
Stamped conductive contacts designed for reliable power transfer, low electrical resistance, and consistent contact force in battery-powered and energy-storage assemblies.
Sensor Contacts
Precision stamped conductive contacts designed for stable electrical signal transfer, consistent positioning, and reliable connection within sensors, controls, and electronic modules.
Not sure where your part fits?
part design essentials
Electrical contact performance depends on how key features work together.
Contact geometry
The location and shape of the contact surface can affect electrical engagement, mating, spring behavior, and assembly.
Material and thickness
Material selection affects conductivity, stiffness, formability, spring performance, fatigue, and contact force. Gromax works with copper alloys, brass, beryllium copper, stainless steel, nickel silver, and related materials.
Formed and spring features
Bend radius, feature spacing, grain direction, deflection, and forming sequence can all affect repeatability.
Retention and feature relationships
Barbs, lances, tabs, holes, and locking features often need to maintain tight relationships with mating housings or other assembly features.
Burr direction and edge condition
Burr location can matter where the terminal mates, slides, makes electrical contact, or enters a molded assembly.
Plating and contact surfaces
Gromax supports plating requirements including tin, nickel, gold, silver, and RoHS-compliant systems. Plating should be considered together with contact location, corrosion, wear, solderability, forming, and dimensional requirements.
Inspection
Critical characteristics need a practical production measurement method. Depending on the part, that may include conventional inspection, dedicated fixtures, or custom gaging.
from DfM to Production
Gromax supports contact and terminal programs from initial review through repeatable production.
Part & DfM Review
We review the drawing, material, thickness, tolerances, formed features, plating, inspection requirements, and production volume before tooling is committed.
Progressive Die Design & Build
For production quantities that justify dedicated tooling, Gromax can design and build progressive dies incorporating piercing, blanking, forming, coining, lancing, and other required operations.
Precision Stamping
Production is developed around repeatability in the selected material, geometry, and dimensional requirements.
Inspection & Gaging
Critical features can be supported with conventional measurement, dedicated fixtures, or custom gaging based on part function.
Plating & Secondary Operations
Plating, machining, tapping, assembly, and other downstream operations can be incorporated into the production plan.
Production Support
Long-term programs can include tool maintenance, process review, corrective action, inspection support, and changes as the customer’s product evolves.
Have a contact or terminal you’d like us to review?
Do not include Controlled Unclassified Information (CUI), ITAR-controlled technical data, or EAR-controlled export-controlled information in your initial email or RFQ submission.
If your request involves export-controlled or regulated technical data, note that in your message and we’ll provide secure transmission instructions.
Customer Confidentiality
& Export Control Notice
To protect customer confidentiality and controlled technical information, Gromax does not publicly display customer-specific drawings, specifications, or sensitive part details without appropriate authorization.
Images shown are illustrative only and are used to represent the types of parts, geometries, and manufacturing capabilities Gromax supports. They do not depict specific customer designs or proprietary technical data.