Product Description
CMT Screw for Bearing - Torx T15 TBTI M4 x 3.5 x 5.7mm (Diameter: 9mm) by CMT is a precision replacement fastener engineered to secure bearings on CMT router bits and cutter heads. This Torx-drive bearing screw delivers a reliable, vibration-resistant hold, keeping bearings firmly seated during routing operations so professionals and serious woodworkers can work with confidence. The T15 Torx interface provides superior torque transfer compared to conventional slotted or Phillips fasteners, reducing the risk of cam-out and fastener damage during installation or removal.
Key Features
- Torx T15 drive interface - delivers higher torque transfer and reduces cam-out risk during tightening or removal, protecting both the fastener and the bearing seat
- TBTI Torx screw type - a tamper-resistant, secure fastening design that maintains consistent clamping force in high-speed routing applications
- M4 x 3.5 thread specification - precisely matched to CMT router bit and cutter head bearing mounts, ensuring a proper fit without thread stripping or play
- 5.7mm length with 9mm head diameter - compact dimensions designed for tight bearing cavities, providing full engagement without interfering with surrounding tool geometry
- CMT OEM replacement part - sourced directly from CMT for exact compatibility, so rebuilt or serviced router bits perform to original factory specifications
Why This Product
- Keeping the correct replacement bearing screw on hand means worn or damaged fasteners can be swapped out immediately, restoring a router bit to full working condition without replacing the entire tool
- The Torx T15 drive style provides a more secure installation than standard hex or Phillips fasteners, which matters when bearings are subject to continuous rotational forces and vibration during use
- Exact OEM dimensions (M4 x 3.5 thread, 5.7mm length, 9mm head diameter) eliminate the guesswork of sourcing a generic substitute that may not fit CMT bearing pockets correctly
- This active CMT part (MPN: 990.074.00) is a genuine service and repair component, making it the dependable choice for shop maintenance programs that rely on CMT router bits
Specifications
- Manufacturer Part Number: 990.074.00
- Brand: CMT Orange Tools
- Description: SCREW FOR BEARING TORX T15 TBTI M4x3.5x5.7mm D=9mm
- Drive Type: Torx T15
- Screw Type: TBTI
- Thread Size: M4 x 3.5
- Length: 5.7mm
- Diameter: 9mm
- Status: Active
Frequently Asked Questions
What tool is needed to drive this screw?
This screw uses a Torx T15 drive, so a T15 Torx bit or Torx key is required for installation and removal. The Torx interface allows firm, controlled torque without slipping.
What does TBTI mean for this fastener?
TBTI refers to the specific Torx screw configuration used on CMT bearing assemblies. It is the screw type designation that confirms compatibility with CMT router bit and cutter head bearing mounts requiring a T15 Torx fastener.
How do I know if this screw fits my CMT router bit?
This screw is intended for CMT router bits and cutter heads that use a T15 Torx bearing screw with M4 x 3.5 threading and a 5.7mm length. Check your CMT tool documentation or the existing fastener on your bearing assembly to confirm the T15 Torx and M4 thread specification match.
Is this a genuine CMT replacement part?
Yes. CMT part number 990.074.00 is an active, genuine CMT replacement component designed to restore CMT router bits and cutter heads to their original bearing retention specifications.
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