Ruwag Decking Screw BB BB 4X4 0mm (400) is listed as an auto-part option. Confirm fitment, part number and compatibility before purchase, especially where vehicle-specific matching is required.
Ruwag Decking Screw 4x40mm (400) is a new part designed for decking and general timber fixing applications. This listing features 400 screws sized at 4x40mm, making it suitable for fastening wooden boards securely. Buyers should compare this screw’s size and length to their existing fasteners to ensure compatibility with their specific wood types and project requirements.
This decking screw is intended to hold decking boards in place, providing strong grip and stability for outdoor wooden structures. The 4mm diameter and 40mm length offer a balance between penetration and holding power, ideal for typical decking thicknesses. It is important to verify the screw size matches your old screws or project specifications, as using incorrect sizes may affect the durability and finish of the decking.
The bulk pack of 400 screws is useful for larger installations or multiple projects, offering convenient quantity without needing secondary purchases. This pack is suited for users who already know the exact screw size needed and require a steady supply. If unsure about sizing or fitment, contacting the sales desk or submitting a request for a specific part is recommended to guarantee the right choice.
Need help matching this item to your vehicle? Use Vehicle Parts Finder, Request a Part or Platinum Sales Desk with your VIN, engine number, part number or clear photos.

