Spi Z3854 Cmm Thread Stylus Adapter M3 Female M4 Male

Product Description

The SPI Z3854 is a CMM thread stylus adapter designed to connect stylus components with differing thread sizes in coordinate measuring machine setups. It features an M3 female thread on one end and an M4 male thread on the other, allowing technicians to mate styli or extensions that would otherwise be incompatible. Constructed from steel, this adapter offers the rigidity and dimensional stability required for accurate CMM measurement work. The overall length is 10 millimeters, keeping probe stack length additions minimal. Metrology technicians and quality control professionals install this adapter as part of stylus configuration builds on CMM arms and bridge-type machines.

This adapter is suited for use in precision metrology environments where stylus thread conversion is needed. It fits into CMM stylus extension builds used in both production floor inspection and dedicated quality lab settings. The compact 10-millimeter length makes it appropriate for applications where stack height is constrained. It is compatible with standard CMM stylus systems that use M3 and M4 metric thread interfaces.

Key Features

• M3 female to M4 male thread configuration for stylus stack compatibility
• Steel construction for rigidity and dimensional stability
• 10-millimeter overall length minimizes added stack height
• Designed for use in coordinate measuring machine stylus assemblies
• Compact form factor suitable for space-constrained probe configurations

Compatibility

Designed as a thread conversion adapter for CMM stylus systems utilizing M3 and M4 metric thread interfaces.

Installation Notes

Installation is performed by metrology technicians familiar with CMM stylus assembly procedures. Ensure the CMM probe head is parked and the machine is in a safe state before assembling or reconfiguring stylus stacks. Use appropriate stylus wrenches and handle components with care to avoid contaminating contact surfaces. Follow the CMM manufacturer guidelines for maximum stylus stack mass and thread engagement to maintain measurement accuracy.