Verified Exact Row
The live CMT variation row confirms 3.18W × 9.52 mm for Item Code 990.058.00.
CMT Orange Tools Guide-Bearing Screw 1/8W x 3/8 x 1/2 Inch
CA$999.99
In stock
SKU
990.058.00
Product Type
Guide-Bearing Screw
Family / Series
CMT 990 Screws
Imperial Size
1/8W × 3/8 × 1/2 inch
Metric Size
3.18W × 9.52 × 12.7 mm
Head Diameter
7 mm (0.276 inch)
Key Reference
CMT 991.057.00
Application
Compatible Guide-Bearing Router Bits
Package
Screw Only · Separately Sold
Bearing Screw
1/8W × 3/8 Inch
Guide-Bearing Screw
CMT 990.058.00 is a separately sold bearing screw with verified 1/8W × 3/8-inch sizing, equivalent to 3.18W × 9.52 mm. Supporting CMT data identifies a 1/2-inch (12.7 mm) overall dimension and a 7 mm (0.276 inch) head.
1/8WImperial Thread Size
3.18W mmMetric Thread Size
3/8 in · 9.52 mmThread Length
Screw OnlyPackage Configuration
Guide-Bearing Screw
A separately sold replacement fastener used to retain compatible guide-bearing assemblies on designated CMT router bits. Exact Item Code selection is required because similar screws use different dimensions and head configurations.
CMT Orange ToolsBearing Fastener1/8W × 3/8 inSKU 990.058.00
Verified across compatible CMT ogee, chamfer, rabbeting, raised-panel, and solid-surface router-bit families. Common associated components include hex key 991.057.00 and designated bearing and shield codes; confirm the exact host-tool spare-parts table.
Main Product Description
CMT 990.058.00 is the exact bearing screw listed in the official CMT 990 screw family. The current live variation row gives DIM 3.18W × 9.52 mm, corresponding to the published imperial designation 1/8W × 3/8 inch.
Supporting CMT spare-part data expands the designation to 1/8 × 3/8 × 1/2 inch, with the 1/2-inch value equal to 12.7 mm, and identifies a 7 mm (0.276 inch) head. This screw is used with compatible guide-bearing assemblies on multiple CMT router-bit families.
This SKU represents the screw only. The router bit, bearing, shield, hex key, spacer, and other assembly parts are not included. Compatibility must be confirmed from the exact CMT tool row or spare-parts documentation.
Technical Specifications
Bearing Screw · SKU 990.058.00
- CMT Orange Tools
- Guide-Bearing Screw
- 990.058.00
- 990 — Screws
- 1/8W × 3/8 × 1/2 inch
- 3.18W × 9.52 × 12.7 mm
- 7 mm (0.276 inch)
- 12_TCEI
- CMT 991.057.00
- Screw Only
- Separately Sold Spare Part
- 1/8W
- Guide-Bearing Retention · Ogee & Chamfer Bits · Rabbeting Systems
- Verified across compatible CMT ogee, chamfer, rabbeting, raised-panel, and solid-surface router-bit families. Common associated components include hex key 991.057.00 and designated bearing and shield codes; confirm the exact host-tool spare-parts table.
Best Fit Applications
Guide-Bearing Retention
Ogee & Chamfer Bits
Rabbeting Systems
Raised-Panel Bits
CMT Spare-Part Service
Product Highlights
Dual-Unit Identification
Published as 1/8W × 3/8 × 1/2 inch and 3.18W × 9.52 × 12.7 mm.
Broad CMT Tool Fit
Referenced across multiple compatible CMT guide-bearing router-bit families.
Compatibility & Installation Notes
This is the screw only. Confirm Item Code 990.058.00 and every associated bearing, shield, spacer, and key reference in the exact host-tool documentation. Installation and inspection should be completed by qualified personnel with the machine safely isolated, following current CMT assembly and fastening requirements. Do not substitute a visually similar screw.
Exact Bearing Fastener for Compatible CMT Router Bits
CMT 990.058.00 provides the verified 1/8W × 3/8-inch (3.18W × 9.52 mm) bearing-screw format with supporting 1/2-inch (12.7 mm) overall data.
Reliable service depends on exact Item Code matching and compliance with the host tool’s documented bearing assembly.