Stihl Spline Screw M5 X 20 - OEM Number: 9022 341 1019

The Stihl Spline Screw M5 x 20 (OEM 9022 341 1019) is a genuine replacement fastening component designed for use across a wide range of Stihl power equipment, including chainsaws, disc cutters, brushcutters, blowers, hedge trimmers, and pole pruners. It is used to securely fasten covers, housings, guards, and structural assemblies within high-vibration machinery applications.

Manufactured to OEM specifications, this spline screw is engineered for durability, vibration resistance, and reliable clamping force under demanding operating conditions. The internal spline drive design provides improved torque transfer and reduced risk of cam-out during installation and removal compared to conventional fasteners.

FUNCTION AND OPERATION

• Secures machine housings, guards, and structural assemblies
• Maintains reliable fastening under high vibration conditions
• Uses an internal spline drive for improved torque engagement
• Helps prevent loosening during prolonged machine operation
• Designed for repeated servicing and maintenance applications

TECHNICAL DETAILS

• OEM Part Number: 9022 341 1019
• Type: Internal spline screw / machine screw
• Size: M5 x 20 mm
• Function: Mechanical fastening component
• Application: Stihl outdoor power equipment assemblies
• Construction: High-grade steel fastener with corrosion-resistant finish
• Drive Type: Internal spline (multi-tooth) drive
• Design: OEM-specified thread profile and dimensions for direct replacement fitment

This fastener is commonly referred to by Stihl as a “Spline Screw IS-M5x20” and is used throughout many professional-grade Stihl machines.

TYPICAL APPLICATIONS

Suitable for a wide range of Stihl equipment, including:

• Stihl TS400, TS410, TS420, TS700, TS800 disc cutters
• Stihl MS-series chainsaws
• Stihl FS-series brushcutters and clearing saws
• Stihl BR350, BR430 series backpack blowers
• Stihl HL-series hedge trimmers
• Stihl HT-series pole pruners

OEM parts references list compatibility across numerous Stihl professional and industrial power tool platforms.

IMPORTANT INFORMATION

Always confirm the correct OEM part number and machine model before ordering, as spline screw lengths, thread specifications, and drive types may vary depending on equipment type and assembly location. Using incorrect fasteners may result in poor clamping force, vibration loosening, or damage to plastic and alloy housings during operation or servicing. Discussions within Stihl repair communities also highlight the importance of using the correct spline-drive tooling and avoiding overtightening in aluminium or plastic assemblies.

DELIVERY OPTIONS (UK mainland only)

Next Day Delivery*
£11.95 or FREE for orders over £150
Orders placed before 4pm Monday to Friday will be delivered on the next business day.
Orders placed after 4pm on Friday will be delivered the following Tuesday.
*Next day delivery applies to stocked items only. Availability can be found on the product pages.

Premium Delivery*
£27.50 for delivery before 10:30am
£20.00 for delivery before 12:30pm
*Premium delivery applies to stocked items only. Availability can be found on the product pages.

For all other countries, please click here for full delivery information.

**Separate carriage charges apply to bulk products such as 205L barrels.