Product Description
CMT Screw for Bearing - Torx T9 TSPTI M4 x 2 x 3.2mm with 6mm Diameter is a precision replacement fastener from CMT, engineered to secure bearings on CMT router bits and cutter heads that use the T9 Torx drive system. Keeping the correct replacement screw on hand means less downtime and a secure, properly torqued bearing every time a fastener needs to be swapped out during routine maintenance or after heavy production use.
Key Features
- Torx T9 drive interface - the T9 Torx recess resists cam-out under load, delivering a more controlled tightening experience compared to a standard Phillips or slotted head, which helps protect both the screw and the bearing housing during installation.
- TSPTI screw design, M4 thread - the M4 metric thread specification ensures a precise, factory-correct fit on compatible CMT tooling, eliminating the guesswork of sourcing a substitute fastener that may not seat correctly.
- M4 x 2 x 3.2mm dimensions - compact sizing matched to CMT bearing retention geometry means the screw sits flush and functions exactly as the original, maintaining proper bearing alignment during cutting operations.
- 6mm head diameter - the 6mm diameter head provides adequate clamping surface area over the bearing retainer without overhang that could interfere with adjacent components or reduce clearance on the cutter head.
- CMT genuine replacement part - sourcing the OEM fastener rather than a generic alternative means consistent material specification and thread quality, which matters when the screw is the sole retention point for a spinning bearing assembly.
Why This Product
- Designed as a direct OEM replacement for CMT router bits and cutter heads that use T9 Torx bearing screws, so there is no need to modify, adapt, or re-tap to achieve a proper fit.
- The Torx T9 drive format reduces the risk of stripping the recess during installation or removal - a common problem with worn Torx fasteners that can make bearing service far more time-consuming.
- Exact dimensional specification (M4 x 2 x 3.2mm, D=6mm) eliminates the uncertainty of ordering a "close enough" fastener, which is especially important in rotating tooling where even minor dimensional mismatches can affect bearing retention and tool performance.
- Stocking this CMT replacement screw (MPN: 990.079.00) as a spare ensures that a missing or damaged bearing fastener does not halt production while waiting for a re-order.
Specifications
- Manufacturer Part Number: 990.079.00
- Brand: CMT Orange Tools
- Description: Screw for Bearing Torx T9 TSPTI M4 x 2 x 3.2mm D=6mm
- Drive Type: Torx T9
- Thread Size: M4
- Screw Dimensions: M4 x 2 x 3.2mm
- Head Diameter: 6mm
- Screw Type: TSPTI
- For Use With: CMT router bits and cutter heads with T9 Torx bearing screws
- Status: Active
Frequently Asked Questions
What tool is needed to drive this screw?
This screw uses a Torx T9 drive, so a T9 Torx driver or T9 Torx bit is required for installation and removal. Using the correct T9 bit is important to avoid damaging the small recess on this compact M4 fastener.
Which CMT tools use the 990.079.00 bearing screw?
This screw is designed for CMT router bits and cutter heads that retain their bearings with a T9 Torx TSPTI M4 fastener. Refer to your specific CMT tool's parts diagram or documentation to confirm compatibility before ordering.
What do the dimensions M4 x 2 x 3.2mm mean for this screw?
M4 refers to the metric thread diameter of 4mm, 2 refers to the thread pitch or a dimensional parameter of the fastener, and 3.2mm describes the length or a related dimensional value. The head diameter is 6mm. These precise dimensions ensure the screw matches the original CMT bearing retention specification exactly.
Is this a genuine CMT replacement part?
Yes. The 990.079.00 is an active CMT part number, making it a genuine OEM replacement fastener. Using the original CMT specification ensures correct thread engagement, head sizing, and drive compatibility with CMT tooling.
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.