Fixings

Standard fixings B 133K & B 133T

Consisting of:
• clamp upper part or plate
• under part
• screw, nut and washer
This fixing can be delivered in stainless steel order.no B 132K
The length of screw should be at least the height of the grating, plus 30 mm.
This fixing can be assembled from above at pitches of 33 mm and over and upon request it can be supplied with a raised "beard".
According to the instructions of the German Employer's Liability Insurance Association only permissible if an additional locking device preventing a displacement on site is available.

Hook screw fixings B833 K & B 833 T

Consisting of:
• Clamp upper part or plate
• hook screw, adjusted to the underside support
• M8 x 90 screw, nut washer
Profile of underside support must be given.
This fixing can be assembled from above.

Hook screw fixings B733 K & B 733 T

Consisting of:
• Clamp upper part or plate
• hook screw, adjusted to the underside support
• M8 x 90 screw, nut washer
Profile of underside support must be given.
This fixing can be assembled from above.

Fixings with self tapping screw B 233 K

Consisting of:
• top clamp
• self-tapping screw at site.

This fixing can be assembled from above.

Fixings for forge-welded gratings with locking devices B334K / B351K

Order Number B 334 K (suitable for pitch 34 x 38 mm)
Order Number B 351 K (suitable for pitch 34 x 50 mm)
Consisting of:
• clamp upper part
• under part with finger hole
• screw, nut and washer.
Length of screws at least height of grating plus 50 mm.
This type of fixing prevents slippage of gratings from the underside support, even when the screw loosens.
 

Threaded bolt fixings B 433 T

Consisting of:
• top clamp with fixed, connected, threaded bush out of brass or aluminum
• Threaded bolts.
This entire fixing unit can be supplied in stainless steel.
This type of fixing can be installed from above and prevents slippage of gratings from the underside support, even when the screw loosens.
This fixing is suitable for pitches ranging from approximately 25 to 40 mm.

Welded Bolt Fixings B 533 K

Consisting of:
• deep drawn clamp upper part
  (on request with deep drawn plate)
• welded bolt (copper backed-up and nickel plated) including ceramic ring
• self-locking nut and, if necessary, with washer
This type of fixing can be installed from above and prevents slippage of gratings from the underside support, even when the screw loosens.
This fixing is suitable for pitches ranging from approximately 25 to 40 mm.
 
Fixings for pressure-locked gratings with locking devices B 633 K

(Suitable for bearing bar pitches of 33 mm and equal or greater cross bar pitches)
Consisting of:
• clamp upper part
• under part with finger hole
• screw, nut and washer
The length of screw should be at least the height of the grating, plus 50 mm.
This type of fixing can be installed from above and prevents slippage of gratings from the underside support, even when the screw loosens.
 
Double clamp fixings B 933 K & B 933 T

Consisting of:
• clamp upper part or plate
• under part
• screw, nut and washer
The length of screw should be at least the height of the grating, plus 30 mm.
Double clamp fixing connects adjacent gratings at places tending to have excessive deflections and therefore prevents the occurence of trip hazards. This fixing can be assembled from above the grating.

Fixings with hole plate B 270

Consisting of :
• welded in hole plate
• screw at site.
This method of fixing is specifically suitable for gratings subjected to vehicle traffic.