Description
Overview:
The Self-Tapping Screw P4x12 is a Genuine Stihl part (part no. 9104 003 8731) used across a range of Stihl garden and grounds care machines. Made from durable, black-coated steel, it forms its own thread as it is driven, so no pre-drilling is usually required. Its compact size suits housings, covers and handle shells where a reliable hold is needed without cracking plastics or stripping thin metal. The P4x12 size equates to 4 mm x 12 mm (approximately 0.16 in x 0.47 in). Commonly found on hedge trimmers such as HSE61 and HSE71, it helps restore a secure, factory-quality fit when replacing missing or worn fasteners and supports routine maintenance where original hardware needs renewing.
Key Features:
- Genuine Stihl part for assured fit and performance
- Self-tapping thread design reduces or removes the need for pre-drilling
- P4x12 size: 4 mm x 12 mm (approx. 0.16 in x 0.47 in) for compact assemblies
- Black-coated steel for strength and dependable service life
- Forms a clean, secure thread in plastics and thin metal components
- Helps prevent loosening and vibration-related failures when correctly installed
- Suitable for restoring OEM fasteners during repairs and servicing
- Straightforward to install with a suitable driver bit
Typical Applications:
Securing covers, shrouds, switch housings, handle shells, cable clips and guards on Stihl hedge trimmers, lawnmowers, ride-on mowers and related equipment. Useful where a short, self-tapping fastener is required to bite cleanly into plastic or sheet metal without a pilot hole.
Also known as:
Self-threading screw, tapping screw, thread-forming screw, self-tapper, plastic housing screw, equipment fastener.
Fits Models:
HE 515, HE 615, HE 715, HE 805, HE 810, HE 815, HSE61, HSE71, HSE81, MA 339.0, MA 443.1, ME 339.0, ME 443.0 C, ME 443.1, ME 545.1, MT 5097.0, MT 5097.0 C, MT 5097.0 G, MT 5097.0 K, MT 5097.0 Z, MT 6112.0, MT 6112.0 C, MT 6112.0 K, MT 6112.0 ZL, MT 6127.0 KL, MT 6127.0 ZL, RMA 339.0, RMA 443.0, RME 339.0, RME 443.0
Alternate Part Numbers:
9104-003-8731, 91040038731
Product Specifications
| L&S Part No. | 9104 003 8731 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 91040038731 |
| Unit of Sale | 1 |
| Applications | HE 515, HE 615, HE 715, HE 805, HE 810, HE 815, HE515, HE615, HE715, HE805, HE810, HE815, HSE61, HSE71, HSE81, MA 339.0, MA 443.1, MA339.0, MA3390, MA443.1, MA4431, ME 339.0, ME 443.0 C, ME 443.1, ME 545.1, ME339.0, ME3390, ME443.0C, ME443.1, ME4430C, ME4431, ME545.1, ME5451, MT 5097.0, MT 5097.0 C, MT 5097.0 G, MT 5097.0 K, MT 5097.0 Z, MT 6112.0, MT 6112.0 C, MT 6112.0 K, MT 6112.0 ZL, MT 6127.0 KL, MT 6127.0 ZL, MT5097.0, MT5097.0C, MT5097.0G, MT5097.0K, MT5097.0Z, MT50970, MT6112.0, MT6112.0C, MT6112.0K, MT6112.0ZL, MT61120, MT6127.0KL, MT6127.0ZL, RMA 339.0, RMA 443.0, RMA339.0, RMA3390, RMA443.0, RMA4430, RME 339.0, RME 443.0, RME339.0, RME3390, RME443.0, RME4430 |
| Machine Type | Electric Hedgetrimmers, Mowers, Lawn Tractors |
| Fits Brands | Stihl |
| Fits Models | HSE61, HSE71, HSE81 | RMA 339.0 | RMA 443.0 | RME 339.0 | RME 443.0 | ME 339.0 | ME 443.1 | ME 545.1 | MA 443.1 | MA 339.0 | MT 5097.0 | MT 5097.0 C | MT 5097.0 G | MT 5097.0 K | MT 5097.0 Z | MT 6112.0 | MT 6112.0 K | MT 6112.0 C | MT 6112.0 ZL | MT 6127.0 KL | MT 6127.0 ZL | ME 339.0 | ME 443.1 | ME 443.0 C | HE 515 | HE 615 | HE 715 | HE 805 | HE 810 | HE 815 | RMA 443.1 |
Reviews
Ask a Question
Compatibility
Customers also bought
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
