The GMX GM-TH002 commercial high-capacity bump feed trimmer head is configured around the M10 x 1.25 left-hand mounting used by the ECHO Speed-Feed 400 straight-shaft platform and ECHO SRM-225, one of the most popular gas string trimmers in the U.S. market. The threaded center is a 10 mm nominal female bore with 1.25 mm pitch and left-hand direction. Its large dual-track spool reduces reload frequency, while the tap-to-advance mechanism releases additional line during operation. The head accepts 0.080-inch through 0.130-inch trimmer line and is supplied with dark green 0.095-inch line. Fitment must still be confirmed by thread diameter, pitch, direction, counterbore clearance, gearbox clearance, and guard clearance.
Key Features
- Commercial high-capacity spool design provides longer operation between line reloads
- Bump-feed / tap-to-advance mechanism releases line during operation
- Accepts 0.080-inch, 0.095-inch, 0.105-inch, and up to 0.130-inch trimmer line
- M10 x 1.25 LH female center thread matched to popular ECHO SRM straight-shaft applications
- Dual-track spool helps separate the two line channels and reduce tangling
- Replaceable metal eyelets and high-impact matte black housing for commercial use
- Designed for medium- to heavy-duty grass, weeds, edging, and professional landscape maintenance
Specifications
Mounting / Compatible Head Specifications
| Reference Type |
Compatible Specification / Application |
| Mounting Interface |
ECHO SRM-pattern M10 x 1.25 left-hand female thread |
| Rotation |
Counterclockwise cutting-head rotation |
| Primary ECHO Models |
SRM-225, SRM-225i, SRM-225U, SRM-230, SRM-2320T, SRM-2620, SRM-2620T, SRM-2620U |
| Shindaiwa / Conditional Fit |
Shindaiwa T225, T235, T262, T262X, C262; selected Husqvarna, RedMax, Makita and other M10 x 1.25 LH straight-shaft units after verification |
| Fitment Check |
Verify thread diameter, pitch, direction, counterbore depth, gearbox and guard clearance |
Fits Brands
Fits ECHO straight-shaft SRM trimmers using the M10 x 1.25 LH pattern and the listed Shindaiwa Speed-Feed 400 family models. Other brands fit only when the thread, rotation, counterbore, gearbox, and guard clearances match.
Fits Models / Trimmer Families
ECHO: SRM-225, SRM-225i, SRM-225U, SRM-230, SRM-2320T, SRM-2620, SRM-2620T, SRM-2620U. Shindaiwa: T225, T235, T262, T262X, C262. Not for ECHO GT curved-shaft units or clockwise-thread installations.
Package Contents
1 x GMX GM-TH002 commercial high-capacity bump feed trimmer head with pre-installed dark green 0.095-inch line
Listing Information
| Product Title |
GMX Commercial High-Capacity Bump Feed Trimmer Head, ECHO SRM Pattern, M10 x 1.25 LH |
| URL Handle |
gm-th002-echo-srm-pattern-commercial-high-capacity-trimmer-head |
| Meta Title |
ECHO SRM-Pattern High-Capacity Trimmer Head M10 x 1.25 LH | GMX |
| Meta Description |
GMX commercial high-capacity bump feed trimmer head with ECHO SRM-pattern M10 x 1.25 LH mounting, matte black housing and dark green line. |
| Search Tags |
GM-TH002, GMX, ECHO SRM trimmer head, SRM-225 replacement head, Speed-Feed compatible pattern, high capacity, bump feed, M10 x 1.25 LH, Shindaiwa |
Installation and Safety Notes
- Verify M10 x 1.25 LH thread, counterclockwise rotation, counterbore depth, gearbox clearance, and guard clearance before installation. ECHO GT curved-shaft models are not included.
- Stop the engine and disconnect the spark plug before service. Tighten securely, wear required PPE, and inspect the housing, eyelets, spool, line, and threads before each use.
