Concrete Screw Countersunk 7.5mm x 150mm Box of 100

Concrete Screw Countersunk 7.5mm x 150mm Box of 100 by Owlett Jaton (Hexstone Limited) is a professional-grade, self-tapping masonry fixing engineered for direct installation into concrete, concrete blocks, brick, and stone without the need for a plastic plug or expansion anchor. Supplied under the trusted JCP Fixings brand, this 150mm concrete screw is the go-to choice for UK tradespeople and serious DIYers who need a fast, reliable, and removable fixing for heavy-duty frame and structural applications.

Key Features and Specifications

• Diameter: 7.5mm | Length: 150mm
• Pack quantity: Box of 100
• Head type: Flat countersunk with five locking ribs beneath the head
• Drive: T30 Torx (TX30) — reduces driver wear and prevents cam-out
• Thread: Serrated V-threads with high-low starting thread (first 30mm) for rapid insertion and efficient debris removal
• Fixing action: Non-expansion undercutting — positive anchorage with no expansion forces on the substrate
• Finish: Zinc plated and yellow passivated (ZYP) for enhanced corrosion resistance
• Pilot drill size: 6mm (6.5mm for high-density concrete)
• Fixture clearance hole: 8mm
• Maximum fixture thickness: 100mm
• Minimum embedment depth: 50mm
• Includes: TX30 driver bit
• Standard: All-steel, non-flammable fixing conforming to BS 7671:2018 (18th Edition)
• Brand: Owlett Jaton / JCP Fixings (Hexstone Limited)

Applications

• Fixing uPVC window and door frames directly to masonry walls
• Securing timber window and door frames to concrete or brick
• Attaching timber stud work and sole plates to masonry floors and walls
• General timber-to-masonry fixing on construction sites
• Replacing traditional nylon frame plugs and hammer fixings
• Suitable for solid concrete, dense concrete blocks, brick, and natural stone

Why Choose This Product

The Owlett Jaton Concrete Screw Countersunk 7.5mm x 150mm offers a single-piece, plug-free fixing solution that installs faster than traditional frame fixings and can be removed and repositioned if required — a significant advantage on site. The zinc and yellow passivated finish provides reliable corrosion resistance for internal and sheltered external applications. Supplied in a box of 100 with a TX30 driver bit included, this is a genuinely trade-ready pack that delivers consistent performance across all common masonry substrates. Owlett Jaton is the UK and Ireland’s leading wholesale supplier of fasteners and fixings, with full batch traceability and technical data available on request.

Delivery in and Around London

We deliver the Owlett Jaton Concrete Screw Countersunk 7.5mm x 150mm Box of 100 to all London boroughs, including Croydon, Lewisham, Southwark, Camden, and Hackney, as well as Greater London areas such as Enfield, Bexley, Redbridge, and Barnet. We also supply to the surrounding counties of Kent, Essex, Surrey, and Hertfordshire. Trade quantities and bulk orders are welcome. Contact us for availability and lead times on larger volumes.