Mercury – Mercruiser 10-40108-35 Screw Genuine OEM Mercury-Mercruiser part.(M10 x 35) Hex Flange – Stainless Steel. .Special Order Item: This product is ordered specifically for your application. To help ensure proper fitment, please confirm compatibility with your engine model using our Parts Finder & Schematics Guide before placing your order. No returns or cancellations once processed.