Carpenters Mate Pro Bolzen Timber to Steel H/D Tek Screws 100mm (Box of 100)

Carpenters Mate Pro Bolzen screws are heavy-duty fixings designed for direct timber-to-steel connections. The self-drilling and self-tapping design allows the screw to drill through the timber and steel substrate before forming its own thread within the metal.

The specialist drill point is designed to penetrate steel up to 12mm thick. Once the drill point has passed through the steel, the tapping section engages with the substrate to provide the required thread engagement. The part-threaded shank and self-countersinking head are designed to pull the timber securely against the steel.

Key features:

• Self-drilling point: Designed to drill directly through steel without separate pre-drilling where the steel is within the stated drilling capacity.
• 12mm steel capacity: Designed for drilling through steel sections up to 12mm thick.
• Self-tapping thread: Forms its own thread within the steel substrate during installation.
• Self-countersinking head: Designed to seat into the timber for a flush finish when correctly installed.
• Torx drive: Provides positive engagement between the driver and screw head.
• 5.5mm diameter: Provides a substantial fixing diameter for timber-to-steel applications.
• Part-threaded design: Allows the timber to be drawn towards and held against the steel substrate.
• Steel construction: Manufactured from steel for demanding timber-to-metal fixing applications.
• Multi-layer protective coating: Provides a durable surface finish.
• Baked ceramic top coat: Provides additional protection against corrosion and surface wear.

Carpenters Mate Pro Bolzen screws are designed for applications where timber needs to be fixed directly to steel without the use of a separate nut and bolt assembly or a pre-drilled fixing hole.

Typical applications include:

• Timber-to-steel connections
• Timber framing
• Roofing and structural timber work
• Loft conversions and structural alterations
• Fixing timber members to steel sections
• General construction applications involving timber and steel
• Joinery and fabrication applications requiring direct wood-to-metal fixing

The 100mm length is suitable where sufficient fixing depth is available through the timber and into the steel substrate. The self-drilling point is designed for steel sections up to 12mm thick.

Usage note: Check the combined timber and steel thicknesses before installation to ensure the selected screw length provides the required engagement. For structural or load-bearing applications, the fixing arrangement should be determined in accordance with the relevant project specification and engineering requirements.

Manufacturer technical information is available for the Carpenters Mate Pro Bolzen range, covering the product design, intended application and installation characteristics.

Pro Bolzen screws are designed specifically for wood-to-metal connections and incorporate a self-drilling and self-tapping design. The manufacturer states that the screws can drill through steel sections up to 12mm thick and are available in a range of lengths.

Technical information:

• 5.5mm diameter
• Self-drilling and self-tapping design
• Self-countersinking head
• Torx drive
• Part-threaded shank
• Steel drilling capacity up to 12mm
• Multi-layer protective coating
• Baked ceramic top coat

The manufacturer states that the Carpenters Mate screw range is EN 14592 compliant. Always refer to the latest manufacturer information and project specification when selecting fixings for structural applications.

Manufacturer information: Carpenters Mate Pro Bolzen product information

Technical note: Product information and technical documentation should always be checked against the latest manufacturer information before specifying fixings for structural or load-bearing applications.