The Collar Screw M10/M8 (Quick Tensioner) is a genuine Stihl fixing designed for the chain tensioning assembly on compatible Stihl chainsaws such as the MS 260 and MS 261. Built from durable metal for repeated use, it features a dual-thread layout with M10 (10 mm) on one end and M8 (8 mm) on the other for a secure, precise fit within the quick chain tensioning system. This collar screw helps keep critical components aligned and firmly attached so adjustments remain stable during cutting. It is suitable for everyday maintenance and repairs, whether you use your saw for professional work or home and garden jobs. OEM specification ensures reliable compatibility and performance across listed models.

Key Features:
– Genuine Stihl OEM part for accurate fit and dependable operation
– Dual-thread design: M10 (10 mm) and M8 (8 mm) for correct engagement in the quick tensioner assembly
– Supports stable chain and bar adjustments to maintain cutting performance
– Robust construction for longevity under vibration and frequent servicing
– Helps restore function when original fixings are worn, stripped, or missing
– Straightforward replacement during routine maintenance
– Compatible with a wide range of mid-size Stihl chainsaws
– Manufacturer part number: 0000 664 2405

Typical Applications:
Used when servicing or repairing the quick chain tensioning mechanism on compatible Stihl chainsaws. Ideal for replacing a damaged or worn collar screw to secure related components and maintain consistent chain adjustment during bar and chain changes, sharpening, and routine inspections.

Also known as:
Collar stud, double-ended screw, quick adjust stud, quick chain tensioner fixing, chainsaw tensioner bolt, dual-thread fixing, bar cover fixing screw.

Fits Models:
026, 028, 028 AV, 028AV, MS 260, MS 260 C, MS 261, MS 261 C, MS 270, MS 270 C, MS 280, MS 280 C, MS 361, MS 361 C, MS 362, MS 362 C, MS260, MS260C, MS261, MS261C, MS270, MS270C, MS280, MS280C, MS361, MS361C, MS362, MS362C

Alternate Part Numbers:
0000-664-2405, 00006642405

Product Specifications