CNC Machined Pins Australia
Custom CNC machined pins — dowel pins, clevis pins, cotter pins, spring pins, taper pins, grooved pins, locking pins, and custom profile pins. Steel 4140, stainless steel 17-4 PH, brass, aluminium, titanium. Manufactured in Australia. Quote in 2 business days.
Pins We Manufacture
Complete range of precision pins for fastening, alignment, and shear applications.
Dowel Pins
Straight cylindrical pins for alignment and positioning. Hardened or unhardened.
Clevis Pins
Pins with eye or eyeholes for hinged or pivoting connections.
Cotter Pins
Split pins used with castellated nuts or slotted components.
Spring Pins
Roll-type (split) or solid spring pins that grip in press-fit holes.
Taper Pins
Conical pins for tight, positive locating of components.
Grooved Pins
Axial grooves allow controlled clamping without deformation.
Locking Pins
Spiral or keyed pins that lock axially against rotation.
Custom Profile Pins
Knurled, flanged, or specially shaped custom pins.
Materials for Pins
| Material | Grade | Best For |
|---|---|---|
| Steel | 4140 (hardened) | High-shear applications, wear resistance, most common |
| Steel | 4340 (hardened) | Extreme-duty applications, impact resistance |
| Stainless Steel | 316, 316L | Corrosion-resistant, marine, general industrial |
| Stainless Steel | 17-4 PH | High-strength, corrosion-resistant, aerospace |
| Brass | C36000 | Low-pressure, decorative, non-magnetic applications |
| Aluminium | 6061-T6 | Lightweight, aerospace, non-critical applications |
| Titanium | Grade 5 | Extreme weight reduction, aerospace, high-temp |
| Tool Steel | M2, D2 (hardened) | Maximum hardness, extreme-wear applications |
Industries We Serve
Automotive
Aerospace & Defence
Industrial Machinery
Marine Engineering
Agricultural Equipment
Mining & Resources
Construction Equipment
Heavy Vehicles
Robotics
Manufacturing Capabilities
CNC Turning & Threading
- ✓ Diameters 1.5mm to 50mm
- ✓ Lengths up to 300mm
- ✓ Threaded or smooth shafts
- ✓ Knurled or specialty heads
- ✓ Grooved or slotted profiles
Precision Tolerances
- ✓ Diameter tolerance ±0.02–0.05mm
- ✓ Ground finish ±0.01mm on hardened
- ✓ Slip-fit or press-fit classes
- ✓ Runout <0.02mm TIR
- ✓ Surface finish Ra 0.8–1.6µm
Heat Treatment
- ✓ Hardening & tempering (4140/4340)
- ✓ Case-hardening for wear
- ✓ Induction hardening available
- ✓ Stress-relief after machining
- ✓ Hardness verification (Rockwell)
Quality & Volume
- ✓ 100% visual inspection
- ✓ 1-off prototypes available
- ✓ High-volume optimization (1000+)
- ✓ Material certifications
- ✓ CMM dimensional verification
Pin FAQs
What pin types can you manufacture?
We manufacture all standard pin types: dowel pins (straight, hardened), clevis pins (with eye or without), cotter pins (split pins), spring pins (roll-type or solid), taper pins (conical), grooved pins, locking pins (spiral or keyed), and custom profile pins. We also produce metric and imperial sized pins. Specify the pin type and application, and we will select the appropriate manufacturing process.
What materials are best for high-shear pins?
Steel 4140 (hardened and tempered) is the standard choice for high-shear applications due to high tensile strength and impact resistance. Stainless steel 17-4 PH offers strength plus corrosion resistance. Tool steel (M2 or D2) hardened provides maximum shear strength where weight is not critical. For shear pins that deliberately fracture under overload, softer materials like aluminium 6061 or brass are used. Specify your shear load and we will recommend the material.
What tolerances can you hold on pin diameters?
Standard CNC turning holds ±0.02–0.05mm on pin diameter. Hardened pins (after heat treatment) are ground to ±0.01mm. Slip fit (ISO m6) or press fit (ISO p6) tolerances are standard. Specify your required fit class and we will machine accordingly.
What is the typical lead time for custom pins?
Lead time for custom pins is 3–7 business days for prototype to small volumes. High-volume orders (1000+) are optimized for cost and delivered on longer timelines negotiated upfront. Expedited turnarounds available for critical applications. Request a quote with your delivery date.
Can you manufacture pins with custom head styles?
Yes. Custom head styles include knurled heads, chamfered heads, countersunk heads, or integral flanges. CNC turning and milling can create any head profile you specify. Provide a drawing or description of your custom head style and we will manufacture it.
Do you offer surface hardening for wear pins?
Yes. Wear pins can be case-hardened, induction-hardened, or flame-hardened depending on the material and depth required. We work with heat-treat partners to achieve hardness levels (typically 45–65 HRC) needed for wear-resistant applications. Hardening is applied after rough machining to maintain dimensional accuracy after treatment.
Get a Quote in 2 Business Days
Upload your pin drawing. Receive a quote for precision-machined, hardened pins in any material and configuration.
Start Your Quote →