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Standoffs & Spacers · Trade series (solderable SMT spacers) · Application guide

What Are Solderable SMT Spacers Used For?

Typical applications, the industries that specify solderable smt spacers, and how to choose the right size, material and finish for the joint.

Solderable SMT Spacers are used for setting a board-to-board or board-to-chassis gap with a spacer installed during solder assembly. They are manufactured to Trade series (solderable SMT spacers), and selection is driven by the size designation, the fit and tolerance the assembly requires, and the service environment.

Primary duty
Setting a board-to-board or board-to-chassis gap with a spacer installed during solder assembly
Governing standard
Trade series (solderable SMT spacers)
Category
Standoffs & Spacers

Application notes are general engineering guidance. Verify the property class and any approval requirement against your own design calculation.

What Are Solderable SMT Spacers Used For? application image

Application guide for Solderable SMT Spacers to Trade series (solderable SMT spacers). The core duty of the type is setting a board-to-board or board-to-chassis gap with a spacer installed during solder assembly. The typical industries, the how-to-specify checklist, assembly practice and the exclusion cases are set out below.

Typical Applications for Solderable SMT Spacers

The most common settings where these are specified:

  • PCB assembly: Solderable spacers set a board-to-board or board-to-chassis gap.
  • High-volume electronics: Taped-and-reel parts suit automated placement.
  • Instrument housings: The M3 threaded version supports a removable board attachment.
  • Compact controls: Through-hole versions provide a defined non-threaded passage.

How to Specify Solderable SMT Spacers for Your Application

  • Size: Match the size to the mating part — see the dimension table below for each option.
  • Material: Choose the material and finish for the service environment — plated steel for general use, stainless for corrosion resistance.
  • Environment: For damp, coastal or chemical exposure prefer A4/316 stainless or a suitable coating; indoors, plated steel or A2 is usually sufficient.
  • Standard: This product is supplied to Trade series (solderable SMT spacers). Quoting the standard on your order guarantees interchangeable dimensions between suppliers.

Where Solderable SMT Spacers Are Not the Right Choice

Match the fastener to the load, environment and whether the joint must be reopened; the wrong class or style is the usual cause of joint failure.

Technical Drawing

Customize the parameters below — every spec field is editable, and the drawing redraws to match the values you choose. Changing the size will snap the other fields to that size's standard values; you can then override any individual value.

Sends the selected values to the quote form below.

Request a Quote

The form below follows the current technical drawing configuration. Change the drawing values above and the request details update automatically.

Request a Quotation

Specification
Business Information

Dimensions & Specifications (Trade series (solderable SMT spacers))

FormThread / designDimension options (mm)MaterialSupplyAdhesive spot
threaded SMT spacerM3tinned steeltaped and reeledwith or without
through-hole SMT spacerthrough-hole3.6~4.2tinned steeltaped and reeledwith or without
Inside the plant

Manufactured in our own plant

This part is cold-formed, threaded, heat-treated and finished in-house. The stages below are where its class and finish are actually decided.

  1. Wire rod feeding into a cold heading machine
    01

    Cold heading

    Wire rod is drawn to size and cold-formed into blanks. Forming rather than cutting keeps the grain flow continuous around the head, which is where a bolt is most likely to fail.

    Head dimensions and under-head radius checked at set-up and per shift.

  2. Thread rolling machine producing bolt threads
    02

    Thread rolling

    Threads are rolled between hardened dies rather than cut. Rolled threads are stronger in fatigue than cut threads and hold pitch and flank angle far more consistently across a batch.

    Go / no-go ring gauges to ISO 965 tolerance class 6g.

  3. Baskets of bolts staged for heat treatment
    03

    Heat treatment

    Quench-and-temper brings carbon and alloy steel to the property class ordered — 8.8, 10.9 or 12.9 — with the furnace charge tracked so a finished lot can be traced back to it.

    Core hardness and tensile tested per lot to ISO 898-1.

  4. Zinc plated bolts in a treatment basket
    04

    Surface treatment

    Zinc, zinc-nickel, hot-dip galvanizing, black oxide, phosphate and Dacromet, selected against the service environment rather than against the price list.

    Coating thickness and neutral salt spray hours to ISO 9227.

Frequently Asked Questions

Are Solderable SMT Spacers made to a recognized standard?

Yes — they are manufactured to Trade series (solderable SMT spacers), so dimensions are interchangeable between suppliers when you quote the standard on your order.

What are Solderable SMT Spacers used for?

Setting a board-to-board or board-to-chassis gap with a spacer installed during solder assembly. They are supplied to Trade series (solderable SMT spacers).

Which industries use Solderable SMT Spacers?

They are commonly specified in pcb assembly, high-volume electronics and instrument housings, among other sectors.

How do I choose the right size of Solderable SMT Spacers?

Match the size to the mating part using the dimension table on this page.

Can I get a quote for Solderable SMT Spacers in the size and material I need?

Yes. Use the technical drawing and quote form on this page to set the size and options, then send the exact configuration to our team for pricing and lead time.