Screw & wall plug kit Fischer 537660 50 mm Pozidriv 4 pcs

The Fischer 537660 screw & wall plug kit contains four 50 mm Pozidriv screws with matching plugs designed for use in solid masonry such as brick and concrete. The kit is intended for medium-duty anchoring tasks where a reliable mechanical connection to masonry substrates is required. The specified drill hole diameter is 6 mm and the minimum embedment depth is 6.5 cm, which together provide stable fixation for fittings, fixtures and small structural elements.

Advantages

The Pozidriv drive profile reduces cam‑out and allows more controlled torque transfer during installation compared with slotted or basic crosshead screws. Designed for masonry substrates, the plugs expand to distribute load and reduce pullout risk in brick and concrete. The standardized 50 mm screw length and 6 mm drill diameter make the kit compatible with common drilling equipment and typical mounting situations in indoor and sheltered outdoor environments.

Suitable for

• Mounting shelves, brackets and small cabinets to brick or concrete walls
• Fixing conduit clips, cable channels and light fixtures in masonry
• Securing handrails, towel rails and bathroom accessories to solid walls
• General repair and renovation tasks requiring medium-duty anchors

Key specifications

• Screw length: 50 mm
• Drive type: Pozidriv
• Quantity: 4 pieces per kit
• Recommended drill hole diameter: 6 mm
• Minimum embedment depth: 6.5 cm
• Suitable substrate: brick, concrete (solid masonry)

How to use

Drill a clean hole in the masonry using a 6 mm masonry drill bit to the minimum depth of 6.5 cm. Remove dust from the hole with a brush or blower to ensure full contact between plug and substrate. Insert the wall plug flush with the surface, position the fixture, and drive the Pozidriv screw through the fixture into the plug until the connection is secure. Avoid over‑torquing; stop when the fixture is held firmly without crushing the plug or damaging the substrate.

Usage recommendations

Verify load requirements for the intended application and, for safety-critical or high-load uses, consult relevant technical data or a qualified professional. Use appropriate personal protective equipment (eye protection and dust mask) when drilling into masonry. For hollow or weak substrates, select an anchor type designed specifically for those materials.