RAWLPLUG MKC metal pressure plate, stainless steel, outer Ø 85 mm, inner Ø 14 mm, thickness 0.5 mm

Rawlplug MKC metal pressure plate is a stainless steel disc with an outer diameter of 85 mm, inner hole diameter 14 mm and a thickness of 0.5 mm. It is designed to increase the bearing area of fixings and to secure insulation boards, membranes or anchor points on masonry and concrete. The plate’s stainless steel construction provides corrosion resistance where prolonged exposure or humid conditions are expected.

Advantages

The stainless steel construction offers resistance to rust and long-term durability. A large 85 mm outer diameter provides a wide bearing surface that reduces localised pressure on insulation materials and improves load distribution. The 14 mm central hole enables compatibility with common fixing anchors and screws, and the 0.5 mm thickness balances stiffness with ease of installation.

Suitable for

• Securing thermal insulation boards to masonry and concrete facades
• Fixing waterproof membranes or vapour barriers in external and internal installations
• Supporting mechanical anchors where increased bearing area is required
• Applications in damp or corrosive environments requiring stainless steel components

When it may not be suitable

The MKC pressure plate is not intended to replace structural brackets or load-bearing mounting plates for heavy mechanical loads; it is intended to distribute load for fixings in insulation and similar materials. It may not be suitable where a thicker or more rigid plate is required for specific engineering demands or where a different inner diameter is necessary for non-standard fasteners.

Key specifications

• Material: stainless steel
• Outer diameter: 85 mm
• Inner (hole) diameter: 14 mm
• Thickness: 0.5 mm
• Primary use: bearing surface for insulation and membrane fixings

How to use

Place the pressure plate over the fixing anchor or screw so that the central hole aligns with the fastener. Position the insulation board or membrane and insert the anchor according to the anchor manufacturer’s instructions, ensuring the plate lies flat against the insulation surface. Tighten the fixing to the recommended torque or depth to secure the board without compressing the insulation excessively. For best performance, use the plate with compatible anchors and follow substrate-specific installation guidelines.

What to consider before purchase

• Verify compatibility of inner hole diameter with the chosen anchor or screw diameter
• Confirm that 0.5 mm thickness provides adequate rigidity for your application
• Ensure stainless steel is appropriate for the exposure conditions of the project
• Check that an 85 mm bearing diameter meets load distribution requirements for the insulation type

Usage recommendations

Use the Rawlplug MKC metal pressure plate with anchors and fixings recommended for masonry or concrete. Avoid over-tightening which can compress insulation; tighten to the anchor manufacturer’s specified setting. In coastal or highly corrosive environments, verify the stainless steel grade used matches project corrosivity requirements.