Trimetal Contact Rivets
A three-part contact rivet for designs that need a contact layer on more than one face or at the shank end.
Trimetal Contact Rivets · 1 / 2
Part details
- Type
- Trimetal Contact Rivets
- Materials
- Silver-alloy / copper-based three-part material systems
- Applications
- Relays, switches, contactors, circuit breakers
- Reference size
- Type A/B indicative ranges; confirm final dimensions by drawing or sample
Sampling & supply
- Sample development
- Available after technical review
- Production MOQ
- Confirmed by part, material, tooling and production arrangement; sample and trial quantities assessed separately
- Sample lead time
- Typically 5-10 working days after technical review and agreed start conditions
- Production lead time
- Typically 15-20 days after technical review and agreed start conditions
Construction and supply options.
Understand the layer arrangement
Use the available part and application information to clarify where each contact layer is needed.
Plan the material system
Define the contact layer, intermediate material, and base for the intended assembly.
Bring material and geometry together
Consider material use, geometry, tooling, and forming as one manufacturing process.
Confirm the production plan
Agree the production specification and any sample or process validation needed before mass production.
Type A and Type B dimensions
Type A and Type B use different layer arrangements, so their dimensions are listed separately.
Swipe the table horizontally to see all columns.
| Type | D (mm) | T (mm) | S1 (mm) | S2 (mm) | d (mm) | L (mm) | SR (mm) | Draft angle |
|---|---|---|---|---|---|---|---|---|
| A1 | 3.5–4.0 | 0.8–1.1 | 0.35–0.50 | 0.30–0.50 | 2.0 | 1.5–2.5 | 6–12 | 11° |
| A2 | 4.0–5.0 | 0.9–1.3 | 0.40–0.70 | 0.8–1.0 | 2.5 | 1.5–3.5 | 8–15 | 11° |
| B1 | 2.5–3.5 | 0.4–0.9 | 0.20–0.35 | 0.30–0.50 | 1.8–2.2 | 0.8–1.5 | 6–12 | 13° |
| B2 | 3.0–4.0 | 0.6–1.1 | 0.25–0.50 | 0.30–0.60 | 2.4–2.7 | 0.9–1.8 | 8–15 | 13° |
| B3 | 4.0–4.5 | 0.7–1.2 | 0.30–0.55 | 0.30–0.60 | 2.9–3.2 | 1.0–2.0 | 10–20 | 13° |
| B4 | 4.5–5.5 | 0.8–1.5 | 0.30–0.60 | 0.40–0.70 | 3.5–4.5 | 1.5–2.5 | 10–30 | 13° |
Reference dimensions only. Final dimensions and tolerances are confirmed from the drawing or sample, material system, and project review.
Manufacturing & Inspection
Manufacturing
Layer arrangement, material selection, geometry, tooling, and process feasibility are considered together before sampling.
- Three-part layer arrangement for the required contact faces
- Material and geometry review before production sampling
- Forming route selected for the approved type A or type B structure
- Finished surface condition selected for the part and application
Inspection
Inspection follows the required layer position and approved specification.
- Key dimensions and visual condition
- Head and foot silver-layer assessment where specified
- Trimetal bonding condition where specified
- Sample-to-production consistency against the approved sample and specification
Understand the Structure and Key Features
Trimetal · one arrangement
Contact material is placed at the head and at an additional working end.
- Contact layer at the head
- Copper-based intermediate and shank
- Additional contact layer at the shank end
Compare the contact material, conductive support and joining method.
Related products
Products
Sample and quote
Provide the layer arrangement, geometry, drawing, or sample so we can define the material and forming route. Include the drawing or sample reference, expected quantity, and required timing. With sufficient drawings or specifications, we can prepare a quotation before sampling. Any sample or process validation required for the project is agreed and completed before mass production.