How to fix gratings correctly
Gratings are used in many areas, for example as covers for light shafts, steps or as floor coverings in industrial halls. Good fastening is essential to ensure that gratings are secure and stable.
Types of grating fastenings
There are two main types of grating fastenings: clamps and direct bolting.
Clamps
Clamps are the simplest and most cost-effective way to attach gratings. They are hooked into the mesh of the grating and secured with a screw or bolt. Clamps are available in different sizes and designs so they can be used on gratings with different mesh widths and shapes.
Hook screws
Hook bolts enclose a support structure and secure the grating against shifting and lifting. Hook bolts are combined with a clamp top. Depending on the design of the hook bolt, a screw or nut is required for fastening.
Direct mount fastenings
Direct mount fastenings are screwed directly into the grating or the subsurface. They offer a high level of stability and safety, but are also somewhat more expensive than clamps. Direct screw connections are available in various designs, for example as drilling screws or set bolt fastenings.
Fastener sets
Fastening sets are combinations of clamps or hook screws that are tailored to the application and are provided pre-assembled or loose as a set.
C-Clip for sheet-metal profile gratings, M8, electro-galvanized
Robust C-clip for fixing sheet-metal profile gratingsAre you looking for a reliable and stable solution for fixing your sheet-metal profile gratings to substructures? Our high-quality C-clip (C-shaped clip) is the ideal choice for secure and durable installation.Product features and benefitsSecure and firm connection: The C-clip encloses the support profile from below and is firmly connected to the grating and the profile from above by a separate screw. This guarantees high pull-out resistance and prevents the grating from slipping or lifting.Maximum flexibility: Designed for support structures with a maximum height of 18 mm, this clip fits common profile tubes, I-beams or other steel sections.Easy installation: Fixing is quick and straightforward. You only need a suitable screw (see accessories) and a tool to create a firm clamped connection. Welding is not necessary!Versatile use: Perfectly suited for use in industrial construction, on walkways, mezzanines, platforms and wherever sheet-metal profile gratings have to be fixed to steel structures.Durable material: The robust design ensures high load capacity and weather resistance (steel, electro-galvanized). Important noteThe screw required for fixing and, optionally, the matching nut are not included in the scope of delivery of the C-clip.💡 Tip: Order the matching screw sets (e.g. hexagon head screws with nuts in the required length) at the same time to ensure quick and complete installation!Secure your gratings now, quickly, cleanly and reliably! 🔩
C-Clip for sheet-metal profile gratings, M8, hot-dip galvanized
Robust C-clip for fixing sheet-metal profile gratingsAre you looking for a reliable and stable solution for fixing your sheet-metal profile gratings to substructures? Our high-quality C-clip (C-shaped clip) is the ideal choice for secure and durable installation.Product features and benefitsSecure and firm connection: The C-clip encloses the support profile from below and is firmly connected to the grating and the profile from above by a separate screw. This guarantees high pull-out resistance and prevents the grating from slipping or lifting.Maximum flexibility: Designed for support structures with a maximum height of 18 mm, this clip fits common profile tubes, I-beams or other steel sections.Easy installation: Fixing is quick and straightforward. You only need a suitable screw (see accessories) and a tool to create a firm clamped connection. Welding is not necessary!Versatile use: Perfectly suited for use in industrial construction, on walkways, mezzanines, platforms and wherever sheet-metal profile gratings have to be fixed to steel structures.Durable material: The robust design ensures high load capacity and weather resistance (steel, hot-dip galvanized). Important noteThe screw required for fixing and, optionally, the matching nut are not included in the scope of delivery of the C-clip.💡 Tip: Order the matching screw sets (e.g. hexagon head screws with nuts in the required length) at the same time to ensure quick and complete installation!Secure your gratings now, quickly, cleanly and reliably! 🔩
LOWER PART 30, hot-dip galvanized
Content: 1 piece (€1,328.803000 / 1000 piece)
LOWER PART 31, hot-dip galvanized
Clamp for mesh pitch 22/33/34 mm Holds 2 bearing bars Clamping heights 18 mm/22.5 mm For assembly with M8 screws Hot-dip galvanized to DIN EN ISO 1461 Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€997.785000 / 1000 piece)
LOWER PART 32, hot-dip galvanized
Clamp for mesh pitch 22/33/34 mm Holds 2 bearing bars Additionally holds only 1 bearing bar up to 4 mm thick Clamping heights 12.2 mm/ 16 mm For assembly with M8 screws Hot-dip galvanized to DIN EN ISO 1461 Suitable for square and hexagon nuts Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€1,014.091000 / 1000 piece)
LOWER PART 33, hot-dip galvanized
Clamp with assembly aid for mesh pitch 33/34/38 mm Preferably for use in safety clamp sets Holds 2 bearing bars Clamping height 18 mm For assembly with M8 screws Hot-dip galvanized to DIN EN ISO 1461 Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€1,745.199000 / 1000 piece)
LOWER PART 36, hot-dip galvanized
Clamp for mesh pitch 41/44/45 mm Holds 2 bearing bars Clamping heights 20 mm/25 mm For assembly with M8 screws Hot-dip galvanized to DIN EN ISO 1461 Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€1,872.699000 / 1000 piece)
LOWER PART 37, hot-dip galvanized
Clamp for mesh pitch 41/51/55/60/66/68 mm Holds 2 bearing bars Clamping heights 28 mm/33 mm For assembly with M8 screws Hot-dip galvanized to DIN EN ISO 1461 Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€2,230.075000 / 1000 piece)
LOWER PART 38, hot-dip galvanized
Clamp for mesh pitch 66/68 mm Holds 2 bearing bars Clamping heights 20 mm/25 mm For assembly with M8 screws Hot-dip galvanized to DIN EN ISO 1461 Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€2,202.240000 / 1000 piece)
LOWER PART 39, hot-dip galvanized
Clamp for mesh pitch 34/38 mm Holds 2 bearing bars Clamping height 20 mm For assembly with M8 screws Hot-dip galvanized to DIN EN ISO 1461 Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€4,539.813000 / 1000 piece)
LOWER PART 40, hot-dip galvanized
Double clamp for connecting 2 gratings, mesh pitch 11 to 66 mm Holds several bearing bars For assembly with M8 screws Hot-dip galvanized to DIN EN ISO 1461 Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€1,446.992000 / 1000 piece)
LOWER PART 42, hot-dip galvanized
Clamp for mesh pitch 33/34/38/40/51 mm Holds 2 bearing bars Clamping height 28 mm For assembly with M8 screws Hot-dip galvanized to DIN EN ISO 1461 Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€2,001.678000 / 1000 piece)
LOWER PART 42S, hot-dip galvanized
Content: 1 piece (€1,721.354000 / 1000 piece)
LOWER PART 46, hot-dip galvanized
Clamp for mesh pitch 19/20/22/25/38 mm Holds 2 bearing bars Clamping heights 8–13 mm For assembly with M8 screws Hot-dip galvanized to DIN EN ISO 1461 Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€1,369.841000 / 1000 piece)
LOWER PART 47, stainless steel 1.4301
Clamp for mesh pitch 15/21/22/33/38 mm Holds 2 bearing bars Clamping heights 10 mm/15 mm For assembly with M8 screws Stainless steel 1.4301 Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€3,228.746000 / 1000 piece)
LOWER PART 47, stainless steel 1.4404
Clamp for mesh pitch 15/21/22/33/38 mm Holds 2 bearing bars Clamping heights 10 mm/15 mm For assembly with M8 screws Stainless steel 1.4404 Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€4,403.149000 / 1000 piece)
LOWER PART 47, stainless steel 1.4571
Clamp for mesh pitch 15/21/22/33/38 mm Holds 2 bearing bars Clamping heights 10 mm/15 mm For assembly with M8 screws Stainless steel 1.4571 Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€4,043.507000 / 1000 piece)
LOWER PART 54, hot-dip galvanized
Clamp for push-through mounting, mesh pitch 38 mm Holds 2 bearing bars Clamping height 14 mm For assembly with M8 screws Hot-dip galvanized to DIN EN ISO 1461 Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€1,805.156000 / 1000 piece)
M-Clip MC004, hot-dip galvanized
Hot-dip galvanized to DIN EN ISO 1461 Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€654.598000 / 1000 piece)
SET montiert, Oberteil 4, Unterteil 32, DIN 933 M8x60, DIN 557, feuerverzinkt
UPPER PART 1, hot-dip galvanized
Clamp upper part for mesh pitch 22 mm Cross bar spacing at least 19 mm For assembly with slotted cheese head screws DIN 84 M8 Hot-dip galvanized to DIN EN ISO 1461 Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€314.908000 / 1000 piece)
UPPER PART 11 for offshore gratings, hot-dip galvanized
Clamp upper part for offshore gratings, mesh pitch 34 mm Cross bar spacing at least 31 mm For assembly with countersunk screws DIN 963 M8 Hot-dip galvanized to DIN EN ISO 1461 Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€987.291000 / 1000 piece)
UPPER PART 13, hot-dip galvanized
Clamp upper part for mesh pitch 41/44/45 mm Cross bar spacing at least 31 mm For assembly with hexagon head screws DIN 933 M8 Hot-dip galvanized to DIN EN ISO 1461 Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€1,174.896000 / 1000 piece)
UPPER PART 14, hot-dip galvanized
Clamp upper part for mesh pitch 50/51 mm Cross bar spacing at least 31 mm For assembly with hexagon head screws DIN 933 M8 Hot-dip galvanized to DIN EN ISO 1461 Grating fastenings are currently not subject to any CE standards, but must be used in accordance with the legal provisions applicable to the application.
Content: 1 piece (€1,176.029000 / 1000 piece)
Which grating fastening is the right one?
The choice of the right grating fastening depends on various factors, such as the size and type of grating, the support of the grating and the safety requirements. In addition, the intended use and location are decisive for the selection of the correct corrosion protection.
Safety fastening in fall areas
In areas where there is a risk of falling, an additional safety fastening is required. This prevents the grating from being moved or lifted off. Various fastening options are available for securing light shaft gratings, for example as chains, brackets or locks.
Installation of grating fastenings
The installation of grating fastenings is generally relatively simple. The exact procedure depends on the type of fastening. With clamps, these are hooked into the mesh of the grating and fixed with a screw or bolt. With direct screw connections, the screws or the set bolt fastenings are placed directly into the support.
Conclusion
Gratings should always be securely and stably attached. The choice of the right fastening depends on various factors. When installing grating fastenings, the exact procedure must be observed.
Frequently asked questions
How are steel gratings fastened securely?
With clamps consisting of an upper and lower part, or with hook bolts that secure the grating against shifting and lifting. The choice depends on the grating type (mesh, pressed or sheet-metal profile grating) and the bearer profile.
Which grating fastening suits which grating type?
Clamps or hook bolts for mesh gratings, e.g. J-hooks for pressed gratings, C-clips for sheet-metal profile gratings. Bar spacing and bearer height are decisive.
Are the grating fastenings suitable for outdoor use?
Yes, hot-dip galvanized or Geomet-coated versions provide durable corrosion protection; stainless steel variants are available for aggressive environments.