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Pins · ISO 13337 · Application guide

What Are Slotted Spring Pins, Light Duty Used For?

Typical applications, the industries that specify slotted spring pins, light duty, and how to choose the right size, material and finish for the joint.

Slotted Spring Pins, Light Duty are used for a light-duty slotted spring pin with thinner walls than the heavy series. They are manufactured to ISO 13337, and selection is driven by the nominal diameter, the fit and tolerance the assembly requires, and the service environment.

Primary duty
A light-duty slotted spring pin with thinner walls than the heavy series
Governing standard
ISO 13337
Nominal diameter range
2 mm to 50 mm
Category
Pins

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

What Are Slotted Spring Pins, Light Duty Used For? application image

Application guide for Slotted Spring Pins, Light Duty to ISO 13337. The core duty of the type is a light-duty slotted spring pin with thinner walls than the heavy series. The typical industries, the how-to-specify checklist, assembly practice and the exclusion cases are set out below. Stocked across roughly 2 mm to 50 mm, they cover general to heavy-duty work.

Typical Applications for Slotted Spring Pins, Light Duty

The most common settings where these are specified:

  • Consumer products: light pivots.
  • Plastics: pins with low insertion force.
  • Instrumentation: small mechanisms.
  • Hinges: light hinges.

How to Specify Slotted Spring Pins, Light Duty for Your Application

  • Size: Select on nominal diameter, then on the hole tolerance and fit class — the fit, not the diameter alone, determines whether the part locates or slips. This product spans 2 mm–50 mm; check the full table below for the exact dimensions of each size.
  • 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 ISO 13337. Quoting the standard on your order guarantees interchangeable dimensions between suppliers.

Installation & Assembly Practice

  • Ream the hole to the specified fit class; a dowel pressed into a drilled-only hole will not locate accurately.
  • Press pins in with steady force rather than hammer blows where possible, and chamfer the hole entry.

Common Selection Mistakes with Slotted Spring Pins, Light Duty

  • Using a dowel pin as a load-carrying shear bolt — dowels locate, they are not sized for sustained shear.
  • Ignoring the fit class: a locational fit and an interference fit need different hole tolerances.

Where Slotted Spring Pins, Light Duty Are Not the Right Choice

Not for carrying significant tensile or repeated heavy shear loads — use a bolt or a keyed joint for that.

Custom manufacturing · Made to drawing

Need a slotted spring pins, light duty outside the standard range?

Diameter, length, tolerance class, hardness and end form are specifiable. Ground diameters are held after heat treatment rather than before. Made by cold heading or turning.

Minimum order from 2,000 pieces; samples within 7 days of drawing approval.

Custom pin manufacturingSend a drawing

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.

Dimensioned line drawing of 2 mm Slotted Spring Pins, Light Duty to ISO 13337. Side view and top view, drawn to the dimensions in the table below and redrawn for any size selected.
d_1 (mm)
2.35
d_2 (mm)
1.9
a (mm)
0.3
s (mm)
0.2
Length range l (mm)
4~30
Sends the selected values to the quote form below.

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

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Specification
Business Information

Dimensions & Specifications (ISO 13337)

Nominal diameter d (mm)d_1 (mm)d_2 (mm)a (mm)s (mm)Length range l (mm)Reference standard
2 mm2.351.90.30.24~30ISO 13337
2.5 mm2.852.30.350.254~30ISO 13337
3 mm3.42.70.350.34~40ISO 13337
3.5 mm3.93.10.40.354~40ISO 13337
4 mm4.53.40.60.54~50ISO 13337
4.5 mm53.90.60.56~50ISO 13337
5 mm5.54.40.60.56~80ISO 13337
6 mm6.554.90.80.7510~100ISO 13337
8 mm8.6571.650.7510~120ISO 13337
10 mm10.658.52.2110~160ISO 13337
12 mm12.6510.52.2110~180ISO 13337
13 mm13.65112.21.210~180ISO 13337
14 mm14.6511.52.21.510~200ISO 13337
16 mm16.6513.52.21.510~200ISO 13337
18 mm18.7152.21.710~200ISO 13337
20 mm20.716.52.2210~200ISO 13337
21 mm21.717.52.2214~200ISO 13337
25 mm25.721.53.2214~200ISO 13337
28 mm28.723.53.22.514~200ISO 13337
30 mm30.725.53.22.514~200ISO 13337
35 mm35.728.53.33.520~200ISO 13337
40 mm40.732.54.3420~200ISO 13337
45 mm45.737.54.3420~200ISO 13337
50 mm50.740.54.3520~200ISO 13337
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 Slotted Spring Pins, Light Duty made to a recognized standard?

Yes — they are manufactured to ISO 13337, so dimensions are interchangeable between suppliers when you quote the standard on your order.

What are Slotted Spring Pins, Light Duty used for?

A light-duty slotted spring pin with thinner walls than the heavy series. They are supplied to ISO 13337.

Which industries use Slotted Spring Pins, Light Duty?

They are commonly specified in consumer products, plastics and instrumentation, among other sectors.

How do I choose the right size of Slotted Spring Pins, Light Duty?

Select on nominal diameter and on the fit the assembly requires. This product is available from 2 mm to 50 mm; the full dimension table on this page lists each size.

Can I get a quote for Slotted Spring Pins, Light Duty 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.