Description
Overview:
This self-tapping screw is a genuine Stihl spare part for assembling and maintaining compatible chainsaws. Made from durable steel with a protective finish, it is designed to cut its own thread into pre-drilled holes for a tight, lasting hold in metal or plastic housings. The screw measures 4.2 mm in diameter and 16 mm in length (approx. 0.17 in x 0.63 in), giving a precise fit where specified by Stihl. It is commonly used to secure covers, handles, and internal components during servicing. Suitable for a range of compact Stihl saws, including the 009 and 012, this is a dependable replacement that supports safe and reliable operation. Genuine Stihl part OEM No. 9099 021 0820.
Key Features:
- Genuine Stihl part for assured fit and performance
- Size: 4.2 mm x 16 mm (approx. 0.17 in x 0.63 in) for correct seating and grip
- Self-tapping thread forms a secure hold in plastic and light alloy components
- Durable steel construction with wear-resistant finish for long service life
- Helps maintain structural integrity of casings and assemblies
- Suitable for professional workshops and DIY maintenance
- Consistent thread geometry for repeatable torque and retention
- Supports safe operation by keeping critical parts firmly fastened
- Direct replacement to reduce downtime and rework
Typical Applications:
Used during routine servicing and repairs to fasten covers, handle frames, chain brake housings, and similar assemblies on compatible Stihl chainsaws. Ideal for restoring factory-spec fixings after wear, corrosion, or loss. Suitable for workshop rebuilds, field repairs, and preventive maintenance where a reliable self-tapping fastener is required.
Also known as:
Self-threading screw, tapping screw, Stihl fixing screw, self-tapper, chainsaw casing screw, chassis screw, service screw.
Fits Models:
009, 009E, 009EQ, 009LQ, 009Q, 010, 010 AV, 010 AVEQ, 010AV, 010AVEQ, 011, 011 AVE, 011 AVEQ, 011AVE, 011AVEQ, 012, 012AVEQ, 012AVTEQ
Alternate Part Numbers:
9099-021-0820, 90990210820
Product Specifications
| L&S Part No. | 9099 021 0820 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 90990210820 |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl part ensures correct fit and performance - Measures 4.2 mm x 16 mm for precise seating - Self-tapping thread secures in plastic and alloy - Durable steel with wear-resistant finish - Fits Stihl models 009, 010, 011, 012 chainsaws |
| Fits Models | 009 | 010, 011 | 012 |
