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HOW TO FASTEN SANDWICH PANELS

Sandwich panel screw fastening systems for roofs and walls

Hilti sandwich panel screw fastening system

WHAT IS A SANDWICH PANEL

A sandwich panel consists of two metal sheets with a core of either material wool or hard foam inserted - “sandwiched” - in between them.

They’re used in building and construction for insulation and for fire protection. There are 2 key applications:

  • Walls - fastening sandwich panels to walls and siding
  • Roofs - fastening sandwich panels to roof substructures and overlaps


They can be fastened so they are either visible or concealed and can be fixed to steel or wood. When choosing a screw fastening for sandwich panels, it’s important to take into account the:

  • Corrosive environment
  • Load values
  • Approval requirements
  • How to achieve a tight fastening - to prevent any water leaking into the structure
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Roof with sandwich panel

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Wall with sandwich panel

OUR SOLUTIONS FOR SANDWICH PANEL FASTENING

We offer a wide range of tools, bits, screw fasteners and accessories for attaching sandwich panels.

Our fasteners can install sandwich panels to both roofs and walls, to thick or thin metal, wood and cast-in channels.

They come in a variety of materials and coatings to resist a wide range of corrosive environments.

They also have approvals to match local building requirements worldwide and can be customized to match the color you need.

Choose from:

  • Self-drilling screws - 1 step fastening for steel > 12 mm and wood
  • Self-tapping screws - for fastening to steel, wood and HTU cast-in channels
  • Stitching screws - chipless screws for fastening overlapping roof sandwich panels, designed to provide a highly effective seal
  • Concealed or visible - our screws can be installed hidden or visible


We also offer a wide range of accessories including:

  • Setting tools - steel and metal screw drivers
  • Inserts - magnetic and mechanic nutsetters
  • Washers - in a range of sizes from 12 mm to 29 mm
  • Saddle washers - designed to improve the tightness and durability of a fastening point and limit the risk of damage to the base material. They come in a range of sizes.

BIM data is also available for all our sandwich panel screw fasteners in our Hilti BIM/CAD Library.

OPEN BIM/CAD library

Which metal screw fastener should I use

For more information on which screw fastener to choose, take a look at our online screw fastener selector:

Screw fastener selector

SCREW FASTENERS TO ATTACH SANDWICH PANELS

Take a look at our own recommendations for screw fasteners to use for different sandwich applications:

Watch how to now

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Hilti S-CD 63 S – Fastening to steel up to a thickness of 6 mm

A self-drilling screw fastener for concealed and visible fixing of sandwich panels. Designed for high loads and for high strength steel. Its supporting thread helps to prevent water leakage in areas exposed to weather.

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Hilti S-CD 65 S – Fastening to steel up to a thickness of 15 mm

Self-drilling screw fastener, for concealed and visible fastening of sandwich panels, with a tip designed for fast installation. Its supporting thread helps to prevent water leakage in areas exposed to weather.

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Hilti S-MP 62 – Fastening to HTU cast-in channels

Self-tapping screw fastener for concealed and visible fastening of sandwich panels. Designed to match the panel thickness and channel embedment for reliable fastening in areas exposed to the weather.

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Hilti S-CDW 61 S – Fastening to wood

Self-drilling screw fastener for concealed and visible fastening of sandwich panels, designed for high loads. Its supporting thread helps to prevent water leakage in areas exposed to weather

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Hilti S-MS 41 S – For fastening overlaps

Our ‘Speedy’ screw fastener is best in its class. Designed to be fast to install and chipless to avoid damaging the base material and designed to prevent water leakage to take high load values in areas exposed to the weather.

How we support

Hilti Onsite engineering advice

Onsite engineering advice

Get help choosing a fastening solution from one of our expert Hilti engineers who can visit you on your jobsite. Contact your local Hilti Customer Service team to book an appointment.

Book a jobsite visit
Hilti customer service agent

Contact Customer Service

Talk to one of your local Hilti Customer Service team for help choosing a screw fastening or for any other questions about our services and products.

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Hilti technical manual for download

BIM/CAD Library

Access our extensive BIM/CAD Library online or directly in AutoCAD®

Open our BIM/CAD library
Customize the color of your fastener

Customize the color of your fastener

We can color our screw fasteners to match the color you need for your building project. Contact your local Hilti Customer Service team for more information.

Customize your fastener color

OUR RESEARCH AND DEVELOPMENT

Research and development is at the core of what we do. At Hilti we’ve been creating innovative technologies for more than 75 years since our company was founded.

Our SDT system and our collated screw strips are just some of the many innovative technologies that have resulted from this commitment.

We run our own engineering Innovation Centers and conduct more research and tests with partners from industry, leading engineering institutes and universities worldwide.

More than two-thirds of our staff work directly with our customers every day, all over the world. So we understand the challenges you’re experiencing and what’s needed on the jobsite.

That’s what our R&D is all about – finding solutions to the problems you face. Our commitment is to help you to be safer, more productive and be able to build with more daring.  

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