Description
Overview:
The ISO 7380 M8 x 50 mm screw (approximately 0.31 inches x 1.97 inches) is a genuine Stihl fastener designed for secure, long‐lasting assembly in lawn and garden machinery. Manufactured from high‐tensile steel to strength class 10.9, it provides dependable clamping under vibration and load. This screw is commonly used on Stihl walk‐behind mowers, including RM655.0 and RM650.0 models, to secure structural and body components where a strong, low‐profile fixing is required. Being a Genuine Part with MPN 9110 391 1950, it offers the correct fit and material specification for the intended applications, helping maintain safety and performance. Suitable for routine maintenance or repairs, it is a straightforward replacement that supports reliable operation across demanding mowing conditions.
Key Features:
- Genuine Stihl part for assured fit and specification (MPN: 9110 391 1950).
- Size: M8 x 50 mm (approximately 0.31 inches x 1.97 inches) to ISO 7380 standard.
- High‐tensile steel, grade 10.9, for strong clamping and resistance to shear and fatigue.
- Low‐profile head style to minimise snagging and provide neat clearance around moving parts.
- Engineered for vibration‐prone environments found in mower use.
- Reliable choice for structural and cover fixings on compatible Stihl machines.
- Straightforward to fit and replace during routine servicing.
- Durable construction supports long service intervals and consistent torque retention.
Typical Applications:
Securing mower decks, handlebar brackets, drive components, guards, housings, and other chassis or cover fixings on Stihl walk‐behind mowers. Suitable wherever an M8 x 50 mm high‐tensile screw to ISO 7380 is specified, especially in areas subject to repeated vibration, shock loads, or frequent maintenance access.
Also known as:
M8 x 50 machine screw, metric bolt, cap screw, low‐profile screw, ISO 7380 screw, fixing screw, retaining screw, metric fastener.
Fits Models:
MB 650.3 T
MB 650.3 V
MB 650.3 VS
MB 655.3 RS
MB 655.3 V
MB 655.3 VS
MB 655.3 YS
MB650.3T
MB650.3V
MB650.3VS
MB6503T
MB6503V
MB655.3RS
MB655.3V
MB655.3VS
MB655.3YS
MB6553V
RM 650.0
RM 650.0 T
RM 650.0 V
RM 650.0 VE
RM 650.1 VE
RM 655.0
RM 655.0 RS
RM 655.0 V
RM 655.0 VS
RM 655.0 YS
RM 655.1 RS
RM 655.1 VS
RM 655.1 YS
RM650.0
RM650.0T
RM650.0V
RM650.0VE
RM650.1VE
RM6500
RM6500T
RM6500V
RM655.0
RM655.0RS
RM655.0V
RM655.0VS
RM655.0YS
RM655.1RS
RM655.1VS
RM655.1YS
RM6550
RM6550V
RMA 765.0 V
RMA765.0V
Alternate Part Numbers:
9110-391-1950, 91103911950
Product Specifications
| L&S Part No. | 9110 391 1950 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 91103911950 |
| Unit of Sale | 1 |
| Machine Type | Mowers |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl part, MPN: 9110 391 1950 - Size: M8 x 50 mm, ISO 7380 standard - High-tensile steel, grade 10.9 for strength - Low-profile head minimises snagging - Compatible with various Stihl mower models |
| Fits Models | RM 650.0 T | RM 650.0 V | RM 655.0 V | RM 655.0 VS | RM 655.0 RS | MB 650.3 T | MB 650.3 V | MB 655.3 V | MB 655.3 VS | MB 655.3 YS | MB 655.3 RS | MB 650.3 VS | RM 650.0 VE | RM 650.1 VE | RM 655.0 YS | RM 655.1 VS | RM 655.1 RS | RMA 765.0 V |

