Description
Overview:
The Collar Screw/Stud D9/M8 is a genuine Stihl fastening component designed for secure, repeatable assembly on a wide range of Stihl chainsaws and electric/battery saws. Made from durable steel with a protective finish, it combines a 9 mm collar (D9) with an M8 thread to locate and clamp components firmly without distortion. This helps maintain alignment and reliability in high‐vibration use. It is suitable for routine repairs and replacements on models including the Stihl MS231 and MS231 C, among many others. Identified by OEM Part No. 1123 664 2405, this stud is engineered to Stihl tolerances for a precise fit, supporting safe operation and long service life in both professional and domestic applications.
Key Features:
- Genuine Stihl part for assured compatibility and quality (OEM 1123 664 2405)
- D9/M8 geometry for accurate location and strong clamping on Stihl machines
- Robust steel construction with a corrosion-resistant finish for longevity
- Holds fast under vibration to help prevent loosening in service
- Clean, precise threads for straightforward fitting and removal
- Supports correct alignment of covers, guides, and housings to protect components
- Suitable for petrol, battery (MSA), and electric (MSE) saws in the listed ranges
- Ideal replacement for worn, stripped, or missing studs to restore integrity
- Built to Stihl standards to maintain machine performance and safety
- Compact form factor for easy handling during routine maintenance
Typical Applications:
Used during maintenance or rebuilds to secure assemblies such as housings, covers, and guide-related fittings on Stihl chainsaws. Common in workshop servicing, field repairs, and preventative maintenance for firewood processing, arborist work, landscaping, and grounds care where reliable fastening is essential.
Also known as:
Collar bolt, shoulder screw, shoulder stud, mounting stud, threaded fixing, fastening stud, locating stud, bar stud fastener.
Fits Models:
MS 162, MS 162 C, MS 170, MS 170 C, MS 171, MS 171 C, MS 172, MS 172 C, MS 180, MS 180 C, MS 181, MS 181 C, MS 211, MS 211 C, MS 230, MS 230 C, MS 231, MS 231 C, MS 250, MS 250 C, MS 251, MS 251 C, MSA 160 C, MSA 200 C, MSA 220 C, MSE 140, MSE 141 C, MSE 160, MSE 170, MSE 180, MSE 190, MSE 200, MSE 210, MSE 230
Alternate Part Numbers:
1123-664-2405, 11236642405
Product Specifications
| L&S Part No. | 1123 664 2405 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11236642405 |
| Unit of Sale | 1 |
| Applications | MS 162, MS 162 C, MS 170, MS 170 C, MS 171, MS 171 C, MS 172, MS 172 C, MS 180, MS 180 C, MS 181, MS 181 C, MS 211, MS 211 C, MS 230, MS 230 C, MS 231, MS 231 C, MS 250, MS 250 C, MS 251, MS 251 C, MS162, MS162 / MS162C, MS162C, MS170, MS170C, MS171, MS171C, MS172, MS172 / MS172C, MS172C, MS180, MS180C, MS181, MS181C, MS211, MS211C, MS230, MS230C, MS231, MS231C, MS250, MS250C, MS251, MS251C, MSA 160 C, MSA 200 C, MSA 220 C, MSA160 C, MSA160C, MSA200C, MSA220C, MSE 140, MSE 141 C, MSE 160, MSE 170, MSE 180, MSE 190, MSE 200, MSE 210, MSE 230, MSE140, MSE141 C, MSE141C, MSE160, MSE170, MSE180, MSE190, MSE200, MSE210, MSE230 |
| Machine Type | Chainsaws, Electric Chainsaws, Cordless Chainsaws |
| Fits Brands | Stihl |
| Fits Models | MS170, MS170C | MS180, MS180C | MS230, MS230C | MS250, MS250C | MS171, MS171C | MS181, MS181C | MS211, MS211C | MS231, MS251 | MSE140, MSE160, MSE180, MSE200 | MSE141 C | MSE170, MSE190, MSE210, MSE230 | MSA160 C | MSA200C | MSA220C | MS162 / MS162C | MS172 / MS172C | MS212 / MS212C | MSA80 C | MS182 / MS182C |
