Product Description
The CMT 990.003.00 Screw for Bearing STIC M5 x 10mm Uni-4766 is a precision replacement fastener designed to retain bearings on CMT router bits and cutter heads. Conforming to Uni-4766 standards, this M5 x 10mm screw provides the secure, properly specified thread engagement needed to keep bearings locked in position during routing operations - helping maintain accuracy and safety at the cutter head. Whether you are servicing a worn router bit or restoring a cutter head to full working condition, having the correct replacement screw on hand means less downtime and more confidence in your tooling setup.
Key Features
- M5 x 10mm thread size (Uni-4766 standard) - matches the exact specification required for CMT bearing retention, ensuring proper fit without improvised substitutes that could compromise cutter head integrity.
- STIC designation - indicates this is a purpose-matched component engineered to work within the CMT STIC system, so you are installing a part that was designed for the application rather than a generic alternative.
- Flat-head (TC) configuration per Uni-4766 - sits flush and does not interfere with bearing seating or routing performance, keeping the cutter head profile clean and functional.
- Active product status - this part remains in current production, meaning it is a supported, ongoing component rather than an obsolete or discontinued fastener.
Why This Product
- Using the correct OEM-specification screw - M5 x 10mm to Uni-4766 - means bearing retention is performed exactly as CMT intended, reducing the risk of bearing movement or failure during use.
- Sourcing a dedicated bearing screw for CMT router bits eliminates the guesswork of finding a compatible substitute at a hardware store, saving time and avoiding potential mismatches in thread pitch or head profile.
- The STIC system classification confirms this fastener integrates directly with the CMT cutter head family it was designed for, making it a straightforward, confidence-inspiring choice for tool maintenance and repair.
- Keeping a replacement screw on hand means a damaged or missing bearing fastener does not take a router bit permanently out of service - a small part that protects a larger tooling investment.
Specifications
- Manufacturer Part Number: 990.003.00
- Brand: CMT Orange Tools
- Description: SCREW FOR BEARING STIC M5x10mm UNI-4766
- Small Diameter: M5x10mm
- Standard: Uni-4766
- System: STIC
- Status: Active
Frequently Asked Questions
What router bits and cutter heads is this screw compatible with?
This screw is designed for use with CMT router bits and cutter heads that use the STIC bearing retention system and require an M5 x 10mm Uni-4766 fastener. Refer to your specific CMT tool documentation to confirm this is the correct part for your model.
What does the Uni-4766 standard mean for this screw?
Uni-4766 is an Italian industrial standard that defines the head style, thread profile, and dimensional requirements for this type of fastener. Conformance to this standard ensures the screw meets consistent, verified specifications for thread engagement and head geometry - important for reliable bearing retention at the cutter head.
What is the thread size of this bearing screw?
The screw has an M5 x 10mm thread - M5 refers to the metric thread diameter of 5mm, and 10mm is the length of the fastener. These dimensions are fixed by the Uni-4766 standard and are specific to the CMT STIC bearing retention application.
Is this screw still a current, supported part?
Yes. The CMT 990.003.00 carries an Active status, confirming it is a currently produced and supported component within the CMT product line - not an end-of-life or discontinued part.
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