Product Description
CMT Torx T15 TBTI Screw for Bearing - M4 x 6 x 8mm, 6mm Diameter is a precision replacement and spare fastener designed to secure bearings on CMT router bits and cutter heads that use the T15 Torx drive system. This TBTI-style screw provides a reliable, tool-specific fastening solution that helps maintain the integrity and safe operation of your CMT insert tooling, keeping bearings firmly seated during demanding routing and cutting operations.
Key Features
- Torx T15 drive interface - engineered for positive engagement with a T15 Torx driver, reducing cam-out risk and allowing consistent torque application when securing bearings on CMT tooling
- TBTI screw type, M4 thread - the TBTI designation means this screw is matched to specific CMT bearing retention systems, ensuring a proper fit without improvised substitutions that could compromise safety
- 6mm diameter head with M4 x 6 x 8mm dimensions - the precise sizing means the screw seats flush and correctly within the bearing pocket, preventing interference with the workpiece or guide surfaces during use
- CMT part number 990.078.00 - an exact OEM replacement that maintains the original engineering specifications of your CMT router bit or cutter head assembly, protecting your investment in CMT tooling
Why This Product
- Keeping a spare CMT bearing screw on hand eliminates costly downtime - if the original fastener is lost or damaged, this exact OEM replacement gets your CMT insert tooling back in service immediately without guesswork
- The T15 Torx drive and TBTI thread specification are purpose-matched to CMT router bits and cutter heads, so you can be confident the screw torques correctly and holds the bearing securely under operating loads
- With M4 x 6 x 8mm dimensions and a 6mm head diameter, this screw meets the tight tolerances required for bearing retention, reducing the risk of bearing slippage or misalignment during routing operations
- As a genuine CMT replacement part with active status, this screw is current production and compatible with the CMT insert router bit systems it was designed to support
Specifications
- Manufacturer Part Number: 990.078.00
- Brand: CMT Orange Tools
- Description: Screw for Bearing Torx T15 TBTI M4 x 6 x 8mm Diameter: 6mm
- Drive Type: Torx T15
- Screw Type: TBTI
- Thread Size: M4
- Diameter: 6mm
- Dimensions: M4 x 6 x 8mm
- Status: Active
Frequently Asked Questions
What CMT tools is this screw compatible with?
This screw is designed for use with CMT insert router bits and cutter heads that use the T15 Torx bearing retention system. It is specifically matched to CMT tooling that requires a TBTI M4 x 6 x 8mm screw with a 6mm diameter head.
What driver do I need to install this screw?
This screw requires a T15 Torx driver or bit for installation. Using the correct T15 Torx driver ensures proper engagement, reduces the risk of cam-out, and allows you to apply the appropriate torque to seat the bearing securely.
What do the dimensions M4 x 6 x 8mm mean for this screw?
The M4 designation refers to the metric thread size, the 6mm value refers to the thread length or grip length, and the 8mm value refers to the overall length. The head diameter is 6mm. These dimensions are specific to the CMT bearing pocket this screw is designed to fit, so using the correct size is important for safe and proper operation.
Is this a genuine CMT replacement part?
Yes. This is a genuine CMT part carrying CMT part number 990.078.00 and is listed as an active product. It is an OEM specification screw intended to replace the original fastener in CMT insert router bit and cutter head assemblies that use the T15 Torx bearing screw system.
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