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Building Materials Of No Clips Galvanized Steel Grating Stair Treads
1. Specifications of Steel Galvanized Metal Grate Steps For Stairs :
Steel Galvanized Metal Grate Steps For Stairs, constructed with holed and grooved side plates to ease fixing to stringers. Treads are safe, self cleaning, skid resistant and economical. A unique range of fittings to enable the easy installation of flat Kick and Toe Boards to standard handrail installations. Can be either welded or fixed via a grub screw reducing installation time and expense. Ideal for added protection and security to handrail walkways.
2. Types of Steel Galvanized Metal Grate Steps For Stairs:
Steel Galvanized Metal Grate Steps For Stairs is fabricated by grating, nosing plate and side plate.
Main type:
1) Checkered plate nosing , Bolted fixing anti-slip
2) Checkered plate nosing, Welded fixing anti-slip
3) Without nosing, Bolted fixing
4) Without nosing, Welded fixing
3. Type of the bearing bar
There are two kinds of Steel Galvanized Metal Grate Steps For Stairs distinguished by different bearing bar types, The respective of features are as follows:
1) Plain: the most widely used gratings, available for flooring sidewalk, all kinds of ditch cover, stair tread, etc.
2) Serrated: best non-skid property & safety compared with plain grating.
| Specifications | |
| 1. Bearing bar | 25x3,25x4,25 x 5,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm |
| 2. Bear Bars pitch (mm) | 12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 34.3, 35, 40,41,60mm. US standard: 1"x3/16", 1 1/4"x3/16", 1 1/2"x3/16", 1"x 1/4", 1 1/4"x 1/4", 1 1/2"x 1/4" etc. |
| 3. Cross bar pitch | 38,50,76,100,101.6mm |
| 4. Material | Q235,SS304 |
| 5. Surface treatment | Black, hot dipped galvanising, paint |
| 6. Standard | China: YB/T 4001.1-2007 |
| USA: ANSI/NAAMM(MBG531-88) | |
| UK: BS4592-1987 | |
| Australia: AS1657-1985 | |