Wall plug FISCHER DuoHM 6 x 55 S PH PZ — Ø6 mm, length 55 mm, Pozidriv screws, grey (set of 4)

Fischer DuoHM 6 x 55 S PH PZ is a two-component cavity wall plug designed for fixing in panel building materials. One plug length covers common panel thicknesses from 9.5 to 30 mm, combining a metal sleeve that folds and bears on the back of the panel with a nylon base body that knots into the material. The set includes four DuoHM 6 x 55 anchors and four M6 x 55 screws with Pozidriv heads; the plugs are grey and intended for use with a 6 mm diameter screw and a 12 mm drill hole.

Advantages

The DuoHM installs quickly and easily with a cordless screwdriver without any additional setting tools, which can reduce installation time by up to 50% compared to conventional panel plugs. Its 2-component design — metal sleeve and nylon base — provides higher load capacity: the metal sleeve presses against the back of the panel while the nylon body knots into the substrate. A single plug length covers a range of panel thicknesses (9.5–30 mm) for flexible and cost-efficient use, and the metric internal thread allows screws to be removed and reinserted several times. The nylon anti-rotation lock protects the panel surface and the narrow plug edge keeps the fixing concealed behind the mounted fixture.

Suitable for

• Fixing lightweight fixtures to hollow panels and board materials (e.g., wall panels, sandwich panels)
• Applications where a concealed fixing behind the panel is required
• Situations requiring repeated screwing and unscrewing of the fastener
• Fast installations using a cordless screwdriver

When it may not be suitable

This anchor is designed specifically for panel and hollow building materials with thicknesses between 9.5 and 30 mm; it is not suitable for solid masonry, concrete, or very thin panels below the specified range. For applications requiring higher shear or tensile loads in solid substrates, a different type of anchor engineered for masonry or concrete should be chosen.

Key specifications

• Plug diameter: 6 mm
• Plug length: 55 mm (one length covers panel thicknesses 9.5–30 mm)
• Drill hole diameter: 12 mm
• Screw size supplied: M6 x 55 (Pozidriv head)
• Material: nylon body with metal folding sleeve (2-component)
• Colour: grey

How to use

Drill a 12 mm hole through the panel at the intended fixing point, insert the DuoHM plug until the narrow edge sits flush with the panel surface, and then drive the M6 screw with a Pozidriv bit using a cordless screwdriver. The metal sleeve will fold and press against the back of the panel while the nylon body knots in the material. The metric internal thread allows the screw to be removed and reinserted as needed. No additional setting tool is required.

What to consider before purchase

• Ensure the panel thickness is within 9.5–30 mm for correct anchoring.
• Confirm a 12 mm drill bit and a Pozidriv (PH/PZ) driver are available for installation.
• Assess whether the load requirements are appropriate for a cavity panel anchor versus anchors for solid substrates.

Usage recommendations

Use the Fischer DuoHM 6 x 55 S PH PZ for lightweight to medium loads in hollow panel materials, and do not exceed the specified panel thickness range; test one fixing if using different panel types to verify performance before full installation.