Wood screw ZN 4.5×40 mm

ZN 4.5×40 mm Wood Screw is a yellow zinc-plated steel fastener designed for securing wooden components, wood connection adapters and various structural fittings. The countersunk head allows the screw to sit flush with the wood surface, providing a clean and neat installation.

This wood screw, with a diameter of 4.5 mm and a length of 40 mm, is suitable for installing wooden handrails, wooden components of railing systems and other timber structures. The yellow zinc-plated finish provides additional surface protection against corrosion. The screw is primarily intended for indoor applications and dry environments where increased moisture resistance is not required.

Technical Information

• Product Code: MED04540
• Type: Wood screw with countersunk head
• Diameter: 4.5 mm
• Length: 40 mm
• Material: Steel
• Finish: Yellow zinc-plated
• Colour: Yellow
• Head Type: Countersunk
• Application: Fixing wooden components and wood connection adapters
• Application Environment: Indoor and dry environmental conditions

Applications

• Fixing wooden element connection adapters.
• Installing wooden handrails and their connecting fittings.
• Securing wooden components in railing systems.
• Joining various wooden structures and mounting components.
• General wood fastening applications in indoor environments.

Key Features

• Steel wood screw with yellow zinc-plated finish.
• Additional surface protection against corrosion in dry environments.
• Countersunk head for a neat and flush installation.
• 4.5 mm diameter and 40 mm length.
• Designed for securing wooden components and connection adapters.
• Convenient installation using a suitable screwdriver bit.

Installation

1. Prepare the fixing position: Position the wooden connection adapter or other mounting component against the wood surface. Mark the screw position and check that the wood thickness is suitable for the 40 mm screw.

2. Prepare the pilot hole: If necessary, drill a pilot hole of the appropriate diameter in the wood. Select the drill bit diameter according to the wood species, density and screw specifications. A pilot hole helps reduce the risk of splitting the wood.

3. Insert the screw: Position the screw and drive it evenly into the wood using a suitable screwdriver bit. The countersunk head should sit flush with the mounting component or wood surface.

4. Check the fixing: Verify that the adapter or other mounting component is securely attached. Avoid overtightening the screw, as this may damage the wood and reduce thread engagement.

Important: This yellow zinc-plated screw is not manufactured from stainless steel. The zinc coating provides additional corrosion protection, but stainless steel fasteners may be required for long-term use in damp or aggressive outdoor environments. Before installation, consider the wood thickness, mounting component design and expected loads. Select the screw length to ensure sufficient engagement in the wood without damaging surfaces on the opposite side.

Related Products

• Fixing into Wood – wood screws and other fasteners designed for securing wooden components.
• Fixing Elements – various fasteners and accessories for construction and installation projects.
• Railing Posts – stainless steel posts for different railing systems.
• Concrete Anchoring – fixing elements designed for installing railings and other structures into concrete substrates.

Frequently Asked Questions

What is the ZN 4.5×40 mm wood screw used for?
This screw is designed for fixing wooden connection adapters, wooden handrails and other wooden components.

Can the yellow zinc-plated wood screw be used outdoors?
The yellow zinc coating provides additional corrosion protection, but this screw is primarily recommended for indoor applications and dry environments. For long-term outdoor use, especially in damp conditions, fasteners with a suitable corrosion resistance class are recommended.

What is the advantage of the countersunk screw head?
The countersunk head allows the screw to sit flush with the wood or mounting component surface, providing a neat appearance and preventing interference with other structural components.