Concrete screw 4x25MM TX recess + 4mm drill bit in a set. Quantity per package: 250 pieces. 9425BTSPT

Quick installation in concrete – no plugs, no complications

The 4x25 mm concrete screw with a 4 mm drill bit included in the set is the solution for situations where traditional anchors fail – or when a quick repair of a mounting error is required. Ideal for reusing PFT, DFT, or CHS accessories after removing their plastic base. There is no need to purchase a new fastener – simply screw this element into the existing hole.

The SDS Ø4 mm drill bit, 110 mm long, is already included in the set. No need to search separately – everything you need is in one place. Installation requires only a hammer drill and manual screwing: a cordless screwdriver is not needed. The thread geometry allows for easy insertion even with low force.

For the installer – simplicity and flexibility

Installation requires only a 18 mm deep hole, making it suitable for areas with limited space – e.g., around electrical boxes or cable trays. The pan head allows for flush mounting with the surface, while the pressure-free expansion anchor enables safe fastening close to concrete edges where other solutions risk cracking. The product holds CNBOP approval, confirming compliance with Polish technical requirements for concrete fastenings.

It can be used not only for repairing mounting errors but also as a primary solution for light loads – handrails, profiles, housings, conduits. Maximum load: up to 60 kg.

What changes in practice?

Instead of waiting for new accessories or drilling a larger hole for a plug – simply drill 4 mm, clean out the dust, and screw in. There is no need to use adhesive, screws with nuts, or special tools. The screw acts as a "replacement" for a gas nail – only more precisely and without the risk of damaging the concrete.

If the project changes – it can be easily removed and reused (e.g., for temporary installations). No material is wasted. No time is lost.