A flange is a tiny protruding flat rim, collar, or rib on a screw for strengthening or attachment. When used in appropriate situations, flange screws are exceedingly secure. It is a fastener with a skirt that extends outwards from the head at a 360-degree angle. These screws apply pressure where the screw contacts the surface without requiring the area required for a washer. Flange screw removes the need for a separate washer, which saves both space and money. Flange bolts in most industrial applications secure connections are critical to production. They retain bond firmly without slippage or loosening. Key Features: Provide serrations beneath the flanged head to hold the surface material. Ensure optimum vibration resistance. The teeth on flange screws operate so well that it takes more power to release the bolt than it does to attach the application. A sturdy piece of fastener. Specifications: Brand: Volvo Penta SKU: 984752 Weight: 0.05 lbs Diagram Reference Number: 8 Part Number: SKR-441 Category: Miscellaneous Suitable for: Volvo Marine & Industry (DxL M10 x 20 mm) Bolt Thread: #8 Metric x 1" L Replaces product: 946441 Volvo Penta Exploded view / schematic Altenator 120A 2-POLE RC