APPLICATION
The surface of the coating is specially treated, which is environmentally friendly. Screws comply with the corrosion resistance requirements of Australian Standard AS3566.2(2002) as follows:
- 2.000 hrs of neutral salt Spray test – AS 2331.3.1.
- 2.000 hrs of U.V condensation test – ASTM G154.
- 1.000 hrs of humidity test – ASTM D2247.
- 15 cycles of sulfur dioxide test – DIN 50018.
- Plus, 2.000 hrs of neutral salt spray test according to Japanese Industrial Standard JIS 237NO5.
The V-shaped screw helps to hold the two ends of the tole tightly.
The thick of washer prevents the screw rim from breaking.
Wide washer increases the ability to grip the washer better than other products.
EPDM mattress has good heat resistance, high elasticity, long aging time.
The underside of the rim has a concave so that the washer is gripped tighter, thereby better anti-leakage.
The high hexagonal head enhances connection with the connectior, thereby increasing construction productivity.
Specifications
| Gauge | Size d - p x L |
Washer type | Package |
| #15 | 6.5 - 15 x 20 | EPDM seal | 500 pcs/box |