Product Description
The CMT 990.084.00 Screw for Bearing STEI Pin M6 x 20mm is a precision replacement fastener from CMT, engineered to keep CNC chuck assemblies and compatible cutter head hardware operating with accuracy and reliability. This M6 x 20mm STEI pin screw provides a secure, correctly sized fit for bearing components, ensuring that high-performance routing and machining setups maintain their mechanical integrity during demanding use. Whether you are restoring an existing assembly or sourcing a direct OEM-matched replacement, this screw delivers the exacting thread specification and length needed for a proper fit.
Key Features
- M6 x 20mm STEI pin thread specification - matches the exact dimensions required for compatible CMT bearing assemblies, eliminating guesswork and ensuring a secure, wobble-free connection.
- Designed as a direct replacement fastener - restores full function to a worn or damaged assembly without requiring modifications, saving time and reducing downtime in the shop.
- Part of CMT's active replacement parts program (class RPHK) - means this component is maintained as a current production part, making it a dependable long-term sourcing option for ongoing maintenance needs.
- Precise OEM sizing at M6 x 20mm - the specific combination of thread pitch and 20mm length matches bearing retention requirements, helping maintain alignment and consistent performance in CNC chuck hardware.
Why This Product
- When a bearing fastener fails or strips in a CNC chuck assembly, replacing it with the correct OEM-specified STEI pin screw - rather than a generic substitute - preserves the mechanical tolerances the equipment was designed around.
- The M6 x 20mm sizing is a specific, non-interchangeable specification; using this genuine CMT replacement part eliminates the risk of cross-threading or improper engagement that can occur with off-spec hardware.
- As an active CMT replacement part, this screw is supported within the brand's current parts catalog, making it a practical choice for shops that service or maintain CMT routing and CNC equipment over time.
- Sourcing a manufacturer-matched bearing screw helps extend the service life of the surrounding hardware by ensuring the fastener engages correctly under the mechanical loads typical of router bit and cutter head operation.
Specifications
- Brand: CMT Orange Tools
- Manufacturer Part Number: 990.084.00
- Description: SCREW FOR BEARING STEI Pin M6x20mm
- Small Diameter: M6x20mm
- Product Class: RPHK
- Status: Active
Frequently Asked Questions
What does the STEI designation mean for this screw?
The STEI designation identifies this as a specific screw type within CMT's replacement parts classification. It corresponds to the STEI pin screw format at the M6 x 20mm dimension, which is the required specification for compatible CMT bearing assemblies in CNC chuck hardware.
What thread size and length does the CMT 990.084.00 use?
This screw uses an M6 metric thread with a 20mm length, as specified in the product data. These dimensions are specific to its intended bearing application and should be matched exactly when sourcing a replacement fastener.
Is this a current production part or a discontinued component?
The CMT 990.084.00 carries an Active status in CMT's product catalog, meaning it is a currently maintained replacement part and not a discontinued or legacy component.
What type of equipment is this bearing screw intended for?
Based on the product classification and description, this STEI pin screw is intended for use in CNC chuck assemblies and related CMT routing or cutter head hardware that requires an M6 x 20mm bearing fastener.
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