Spi Z3850 Cmm Thread Stylus Adapter M2 Female M3 Male

Product Description

The SPI Z3850 is a CMM thread stylus adapter designed to connect coordinate measuring machine styli and extensions with mismatched thread sizes. It features an M2 female thread on one end and an M3 male thread on the other, allowing technicians to bridge common metric thread standards used across CMM tooling systems. Constructed from stainless steel, the adapter provides corrosion resistance and dimensional stability during precision measurement work. The overall length is 5 millimeters, making it a low-profile solution that minimizes stack-up error in the stylus assembly. Metrologists, quality control technicians, and CMM operators install this adapter as part of stylus configuration builds.

This adapter is suited for use in metrology environments where CMM styli, extension bars, or probe modules require a thread transition between M2 and M3 connections. It is applicable in both shop-floor and laboratory CMM setups where precision thread engagement is required to maintain measurement integrity. Typical installations include building out multi-component stylus assemblies for touch-trigger and scanning probe systems.

Key Features

• M2 female to M3 male thread configuration for cross-size stylus assembly builds
• Stainless steel construction for corrosion resistance and dimensional stability
• 5-millimeter overall length minimizes stack-up in multi-component probe assemblies
• Compact low-profile design suited for tight-clearance CMM fixturing
• Single-piece precision adapter for consistent thread engagement

Compatibility

Designed as a direct-fit thread adapter for CMM stylus assemblies utilizing M2 female and M3 male metric thread interfaces, consistent with standard coordinate measuring machine tooling configurations.

Installation Notes

Installation is performed by metrology technicians or CMM operators as part of stylus assembly configuration. Power down or place the CMM in a safe parked position before modifying the probe assembly. Thread the adapter by hand first to verify engagement, and avoid overtightening, which can damage precision threads or affect measurement repeatability. Follow the CMM manufacturer guidelines for stylus assembly torque and seating procedures.