hot dipped galvanized steel grating used for stair tread

Description

Stair tread is made of steel grating& widely used for different types ofsteel ladders,feature easy installation,strong structure&aeatheic appearance&good water permeability.We can fabricate according customer'size.
Bearing Bar
25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc
I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc
US standard: 1''x3/16'', 1 1/4''x3/16'', 1 1/2''x3/16'', 1''x1/4'', 1 1/4''x1/4'', 1 1/2''x1/4'', 1''x1/8'', 1 1/4''x1/8'', 1 1/2''x1/8'' etc


Bearing Bar Pitch

12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc
US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc.

Grating Style

Plain / Smooth, Serrated /teeth, I bar, serrated I bar

Components of steel grating

Four types of bearing bar

Type of Bar

Type of stair tread




No nosing Welded fixing



No nosing Bolted fixing



Checkered plate nosing welded fixing



Checkered plate nosing Bolted fixing



Vertical striped plate nosing Welded fixing



Vertical striped plate nosing Bolted fixing



Vertical striped plate nosing Welded fixing



Vertical striped plate nosing Bolted fixing

T5 Packing

Features for grille stair tread:

1. Easy for assembly and disassembly.

2. Good ventilation of air and light, heat dissipation.

3. Anti-slip & anti-explosion.

4. Easy for maintenance.

5. The aiti-slip treads possess unmatched slip resistance property, which are suitable for using in wet and slippery places like the offshore oil production platform.

6. The HDG surface provide strong antirust capacity with service life upto 30 years without any maintenance.

7. High drainage rate.

Application
It can be used in factory platform,walkway ,and other places.