Specialties
Micro stamped contacts, clips, shields and brackets in strip material
0.05 – 1.5 mm strip · Specialties Overview
Many assemblies need more than a screw. A spring clip that retains a battery, a contact that carries current to a motor, a shield that keeps EMI away from an antenna — these are stamped parts, and sourcing them from the same supplier as the fasteners shortens the qualification chain and reduces the number of incoming inspections.
We run progressive dies on strip from 0.05 to 1.5 mm in brass, phosphor bronze, beryllium copper, stainless and nickel-plated steel. In-die tapping, forming, coining and selective plating are available, and parts can be delivered on reel for automated insertion or loose in bulk. Critical dimensions are tracked with Cpk on an ongoing basis rather than checked only at first article.
Strip thickness
0.05 – 1.5 mm
Part size
Up to 120 × 120 mm
Tolerance
±0.02 mm on critical features
Burr height
≤ 10% of strip thickness
Materials
Brass, phosphor bronze, BeCu, SUS301, SUS304, nickel-plated steel
Processes
Progressive stamping, forming, coining, in-die tapping, selective plating
Design intent
Six engineering decisions that separate a micro fastener that works from one that merely fits the drawing.
Fine blanking and progressive tooling handle strip as thin as 0.05 mm without burr or distortion that would affect contact resistance.
Threads, bends and coined features are produced in the die, eliminating secondary operations and the handling damage they cause.
Gold on the contact area, tin on the solder tail — plating only where it is needed keeps cost down without compromising performance.
Critical dimensions are monitored with process capability indices, so drift is caught before it becomes a rejected lot.
Taped reel for high-speed automated insertion, or loose parts in bulk for manual assembly.
Brass, phosphor bronze, beryllium copper, SUS301, SUS304 and nickel-plated steel for conductivity, spring temper or corrosion resistance.
Technical data
Reference data for design and sourcing. For a specific part, the drawing governs — these tables are the starting point for a joint review.
| Part family | Material | Thickness (mm) | Plating | Key requirement |
|---|---|---|---|---|
| Battery contacts | Phosphor bronze | 0.10 – 0.20 | Gold / nickel | Contact resistance < 20 mΩ |
| Spring clips | SUS301 | 0.08 – 0.25 | None / tin | Deflection and fatigue life |
| EMI shields | Nickel-plated steel | 0.10 – 0.30 | Tin | Shielding effectiveness |
| Mounting brackets | SUS304 | 0.30 – 1.00 | Passivation | Flatness and hole position |
| Motor laminations | Silicon steel | 0.20 – 0.50 | Insulation coating | Burr and stacking factor |
| Antenna springs | BeCu | 0.05 – 0.15 | Gold | Spring rate and conductivity |
Values are typical for the stated material and finish. Actual performance depends on the mating material, engagement length and assembly torque. Confirm with a sample test before design freeze.
Options
Mix these within one part number family. Where a combination is not manufacturable at your tolerance, we will say so at quotation rather than after the first lot.
Where it is used
Representative positions rather than an exhaustive list. Many of our parts are designed for one specific assembly and never appear in a catalogue.
| Assembly | Typical use |
|---|---|
| Battery compartments | Phosphor bronze contacts with gold flash |
| Motor and actuator assemblies | Laminations and retaining clips |
| PCB shielding | Nickel-silver EMI cans and fence clips |
| Wearable charging | Pogo pin contacts and spring fingers |
| Robot cable routing | Stainless retaining clips |
| Panel mounting | Tapped brackets combining thread and locating feature |
Quality control
Inspection is not a final gate. It is a set of checks placed where a process can actually drift, with the result recorded against the lot code.
01
First article, CMM with GD&T report
02
Critical dimensions, Cpk monitoring
03
Burr height, profile projector
04
Plating thickness, XRF
05
Contact resistance, four-wire measurement
06
Spring force, load-deflection test
07
Flatness, surface plate and indicator
08
Salt spray where specified
Questions
The questions our engineers answer most often on this product family.
Related products
These families are frequently used in the same assembly, or as an alternative when the joint requirement changes.
Micro Screws · M0.5 – M6
Precision machine screws from M0.5 to M6 with rolled Class 6g threads, tight head concentricity and clean drive recesses for automated driving.
Precision Components · M1 – M4
Male-female and female-female standoffs from M1 to M4, plus plain spacers, in brass, stainless and aluminium — with length tolerances that keep board stacks parallel.
Precision Components · M1 – M6
Brass and stainless threaded inserts that give plastic parts a durable metal thread — heat-set, moulded-in, ultrasonic and press-fit versions from M1 to M6.
Precision Components · Ø1.0 – Ø10 mm
Precision shoulder screws, dowel pins and stepped pins ground to h9 for pivot, locating and alignment duties in miniature mechanisms.
Send a drawing or 3D model with the mating material and finish requirement. We reply with a process route, tolerance review and price — usually within two working days.