Diamond Pin – Precision Locating Solution for Controlled Positioning in Checking Fixtures

In automotive checking fixtures and precision assembly tooling, Diamond Pins play a critical role in achieving accurate yet stress-free part location.
Unlike round locating pins, a diamond pin is designed to control one axis while allowing expansion in the perpendicular direction, preventing over-constraint and assembly distortion.

From a user’s perspective, diamond pins ensure repeatable positioning without inducing stress, especially when parts have thermal expansion or tolerance variation.

Custom Diamond Pins for Your Fixture Design

Every fixture has unique locating requirements. GoodingJP provides fully customized Diamond Pins, including:

• Custom diamond width and relief angle

• Controlled pin diameter and length

• Press-fit or removable designs

• Hardened tool steel for wear resistance

• Compatibility with bushings and pin seats

From a user’s standpoint, custom diamond pins ensure perfect alignment with fixture datum strategy and long-term inspection stability.

GoodingJP Manufacturing & Quality Advantages

As a professional manufacturer of automotive checking fixture components, GoodingJP focuses on precision and consistency.

✔ High-Precision CNC Machining & Grinding
Ensures accurate diamond geometry and tight dimensional control.

✔ Heat Treatment for Durability
Improves wear resistance and maintains locating accuracy over time.

✔ Strict Quality Inspection
Each diamond pin is verified for width, symmetry, and surface finish.

✔ Engineering Support
We help customers optimize pin design to avoid over-constraint while maintaining positioning accuracy.