Fixture Locators & Rest Pads
Hardened locators, rest pads and support pins that define where the part sits.
Locators that take the wear instead of the fixture body, hardened and ground, replaceable when they have had enough. The part location is only as good as these small parts.
How we make it: Custom CNC parts service →
2–4 weeks
25 pieces
ISO 9001:2015
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Hardness | 58–62 | HRC |
| Diameter range | Ø6–Ø50 | mm |
| Height tolerance | ±0.01 | mm |
| Flatness (contact face) | 0.005 | mm |
| Repeatability | 0.01 | mm |
| Replaceable | Yes | standard |
Available Materials
- Tool steel A2 / D2
- Steel 52100
- Bronze C932
- Stainless 420
- Nylon / POM (non-marking)
Typical Applications
- Fixture location
- Rest and support pads
- Wear plates
- Retractable stops
- Non-marking contacts
Surface Finishes
- Hardened + ground
- Black oxide
- Passivate
- Nylon-tipped
- Laser marked size
Industries Served
- Aerospace
- Automotive & EV
- Industrial Equipment
- Tooling & Mould Making
- Medical
What drives the price of this part
Derived from the callouts on this page. Where a driver is not on the drawing, it is not on this list.
- Tolerance
- Height tolerance at ±0.01 mm is the tightest callout this family carries. Tightening a callout is a process decision, not a machining decision: below the standard ±0.005 mm the work moves to grinding or jig boring, and the price moves with it.
- Part size
- Diameter range at Ø6–Ø50 mm decides which machine the part lands on and how many setups it needs. Size is the driver buyers most often leave out of a first enquiry, and it is the one that changes the quote fastest.
- Material
- The first material listed, Bearing Steel 52100 (100Cr6), rates 4/10 on our machinability scale at 60–66 HRC hardened · 183–217 HB annealed. On this shop's scale a harder alloy means slower passes and more tool changes, and that is cycle time the quote has to carry.
- Order size
- Minimum order is 25 pieces, where setup and tooling are amortised across the batch and per-part cost settles around cycle time and material. Below that quantity the same part costs more per piece, not less.
See how cycle time is calculated in the machining time calculator and what else moves a price in the cost driver reference.
How these parts are inspected
Matched to the callouts above and the instruments actually on the floor.
- Coordinate measuring machine (Zeiss CONTURA G2, two machines, GR&R 8.4% on the critical feature)
- Dimensional report against the drawing, with a 100% check on critical features rather than a sample
- Certificate of conformance and the mill certificate with every shipment
- Rockwell hardness tester on the part, not only against the mill certificate
The full equipment list, with counts, is on the capability page; the inspection sequence is on quality and inspection.
Questions buyers ask
- Why make locators replaceable?
- Because they wear and the part position drifts with them. A replaceable locator keeps the fixture alive; a hardened pin pressed into a soft body scraps the fixture.
Related part families
Workholding Fixtures
Machining fixtures that locate on the casting or forging datum, repeatable to 0.02 mm.
Angle Plates & Setup Blocks
Ground angle plates and setup blocks that put a workpiece on a known plane.
Dowel Pins & Locating Pins
Ground dowel and locating pins to m6/h6, hardened where the pin is also a wear surface.