When subjected to 312 hrs of salt fog spray testing (BHMA A138.18), zinc-plated hardware showed severe corrosion while hardware with Weather Guard protection withstood these harsh conditions with very little deterioration.
Products specifications
|
Finish
|
Zinc |
|
Material
|
Steel |
|
Overall Length
|
4 in |
|
Suitable for
|
Nationals 29 Screw Hook Hinge Nationals 294 Hinge Straps |
|
Thread Length
|
3 in |
|
Manufacturer
|
NATIONAL BRAND |
