Product Description
CMT Screw for Bearing - Torx T15 TBTI M4 x 6 x 8.2mm (Diameter: 9mm) is a precision replacement fastener designed to secure bearings on CMT router bits and cutter heads. This Torx-drive TBTI screw delivers a reliable, tool-assisted clamping connection that keeps bearings firmly seated during high-speed routing operations - reducing slippage, vibration, and premature bearing wear. If you need a dependable CMT replacement bearing screw with a T15 Torx drive, this is the exact factory-spec hardware to restore your tooling to proper working condition.
Key Features
- Torx T15 drive type - provides a positive, cam-out-resistant interface between fastener and driver, making it easier to achieve consistent torque without slipping or stripping the screw head
- TBTI designation (tamper-resistant Torx internal) - the internal Torx configuration helps maintain fastener integrity in demanding routing applications where vibration and cutting forces are constant
- M4 x 6 thread specification - matches CMT factory thread dimensions exactly, ensuring a proper fit without forcing, cross-threading, or the need for modification
- 8.2mm length with 9mm head diameter - compact geometry engineered to sit flush and secure within CMT bearing pocket designs, preventing interference with the workpiece or cutter path
- CMT part number 990.075.00 (Active status) - a current, in-production replacement part so you are getting the same specification used in original CMT cutter head assembly
Why This Product
- When a bearing screw is lost, stripped, or damaged, continuing to run the cutter risks bearing migration and tool failure - this exact-specification replacement restores the cutter to safe, factory-intended operation without guesswork about compatibility
- The Torx T15 drive geometry distributes torque evenly across six contact points rather than four, making it more resistant to driver slippage during tightening - a practical advantage when working in tight spots around cutter heads
- As an active CMT replacement part (class RPRB), this screw is sourced directly from the same product line as the original hardware, so the thread pitch, head diameter, and overall dimensions are confirmed matches for CMT tooling
- Stocking a spare bearing screw is a low-cost way to eliminate downtime - having the correct M4 x 6 Torx fastener on hand means a dropped or worn screw never has to stop a production run
Specifications
- Manufacturer Part Number: 990.075.00
- Brand: CMT Orange Tools
- Description: SCREW FOR BEARING TORX T15 TBTI M4x6x8.2mm D=9mm
- Drive Type: Torx T15
- Drive Configuration: TBTI
- Thread Size: M4 x 6
- Length: 8.2mm
- Diameter: 9mm
- Product Class: RPRB
- Status: Active
Frequently Asked Questions
What CMT tools is this screw designed for?
This screw is a bearing replacement fastener (class RPRB) for CMT router bits and cutter heads that use a Torx T15 TBTI drive screw with M4 x 6 threading and a 9mm head diameter. Check your existing cutter head hardware to confirm the T15 drive and M4 thread before ordering.
What driver bit do I need to install this screw?
This screw requires a T15 Torx driver bit. The TBTI designation indicates an internal Torx configuration, so a standard T15 Torx bit - not a star-type external driver - is the correct tool for installation and removal.
What do the dimensions M4 x 6 x 8.2mm and D=9mm mean?
M4 refers to the metric thread diameter of 4mm, x 6 is the thread pitch or shank length specification, 8.2mm is the overall length of the screw body, and D=9mm is the outer diameter of the screw head. All four dimensions must match your CMT cutter head bearing pocket to ensure a correct fit.
Is this a genuine CMT replacement part?
Yes. CMT part number 990.075.00 carries an Active status, meaning it is a current, genuine CMT replacement part - not an aftermarket alternative. It is produced to the same specifications as the original hardware used in CMT cutter head assembly.
Reviews
FAQs
Standard Shipping is free on most orders over $50 within the contiguous US. If the order is under $50.00, the shipping is $9.99 set fee for shipping within the contiguous US.
Most of our products will ship within 1 to 3 Business Days. Some Special order products will ship within 2 to 5 Business Days. Preorders will be shipped to you on a first come first serve basis as soon as available from the manufacturer. Items that are "Made-to-Order" (Custom order products) will be shipped when fabrication is completed, shipping and delivery times will vary and depend on manufacturing.
Products that are shipped directly from the manufacturer will have processing and fulfilment times subject to manufacturer availability.
Preorders are shipped on a first come first serve basis as soon as available from the manufacturer, the sooner you place your Preorder the sooner your order will ship.
Freight shipping Policy:
Orders/Items too large or heavy may require special handling/Shipping and may require to be sent by truck. Someone must be present to accept truck deliveries. Standard truck delivery is to a dock facility designed to receive freight. You will be notified within 24 hours of ordering to confirm delivery. Lift gates for deliveries are available for an additional fee.
We offer Financing options through Clicklease
Please email your Return request to info@FactoryDirectSupplyOnline.com
Include the order number and the reason for your return.
All returns, regardless of their categorization, must include all original parts, be in their original packaging, and in the condition in which they were received. You may not qualify to receive a refund If the returned item is used, damaged, missing any parts, or is damaged during return shipping.
Checkout our complete Return policy
You can contact us through our contact page! We will be happy to assist you.