Fastening accessories for P and SP gratings
- Gratings must be secured against lifting or slipping from the supporting structure. Each grating must be fixed at a minimum of four points, preferably at the corners.
- Fastening accessories are supplied by Lichtgitter CZ for all types of gratings and for all commonly supplied and designed types of supporting profiles.
- All fastening elements must be periodically inspected and, depending on the conditions of use, bolted connections must be re-tightened if necessary.
- Unless otherwise specified, all types of fastening elements, including bolts and nuts, are hot-dip galvanized.
B 133T – Standard fastening element
It consists of a robust lower part, a bolt, a nut and a plate (clip). It is designed so that with a mesh size of 33 x 33 mm it can be installed from above through the grating mesh. The standard fastening element is not suitable for environments with vibrations. It is also not suitable for fastening gratings used as stair treads (use is possible if the gratings are secured against shifting).
B 334K – Safety fastening element with locking mechanism
This element prevents the grating from slipping off the structure even if the bolted connection is loosened. It is intended for resistance-welded gratings with a maximum height of 50 mm with mesh sizes:
34 x 38 mm – fastening element B 334K
34 x 50 mm – fastening element B 351K
34 x 24 mm – fastening element B 33424K
Installation from above through the grating mesh is only possible for 34 x 38 mm and 34 x 50 mm mesh sizes
B433-TM – Shoot-in fastening element
Enables very fast fastening of the grating. It consists of an electro-galvanized or stainless steel shoot-in pin with an M 8 thread and a special plate with an internal thread. It can be used for bearing bar spacing of 25 to 40 mm. Installation is carried out using special tools. The fastening element is suitable for environments with vibrations.
Plate versions:
B433-TM – duplex, suitable for outdoor environments
B433-T – electro-galvanized, for indoor environments
B433-TR – stainless steel version, for aggressive environments
B 533 K – Weld-on fastening element
It consists of a special bolt that is butt-welded to the supporting structure, a nut and an upper clip. This fastening ensures a high level of safety against slipping and grating fall.
B 633K – Safety fastening element with locking mechanism
It is intended for pressed gratings with a mesh size of 33 x 33 mm and a maximum height of 50 mm. This element prevents the grating from slipping off the supporting structure even if the bolted connection loosens. Installation from above through the grating mesh is possible.
B 733T – Hook fastening element
It is intended for fastening the grating to a supporting profile without a bottom flange. For a complete specification, it is necessary to specify the size and type of the supporting profile. This element also fixes and locks the grating position.
B 833T – Hook fastening element
It is intended for fastening the grating to a supporting profile with a bottom flange. For a complete specification, it is necessary to specify
the size of the supporting profile. This element also fixes and locks the grating position.
B 933T – Double clip
It allows two adjacent gratings to be connected at points where large deflections occur and thus prevents the formation of a so-called trench edge. It is applied mainly in places where large shaped cut-outs are made in the gratings.
B10 – Fastening element for gratings with 11.11 mm twisted bar spacing
It consists of the lower part of the fastening element, a bolt with a flat round head and a nut. The bolt length is at least the grating height + 40 mm. The fastening element is suitable for a 22×11 mm mesh.
B 13311K – Standard fastening element for gratings with 11.11 mm twisted bar spacing
It consists of the lower part of the fastening element, an upper clip, a countersunk-head bolt and a nut. The fastening element is suitable for bearing bar spacings of 33.33 mm and above.
B 270 – Fastening using an anchor plate
It consists of an anchor plate with a hole welded into the grating. Bolts are not included in the delivery.
Especially suitable for driven gratings.
Other types of fastening elements are listed in the SP + P manual, which you can find in the Downloads section.