Alu-Zinc Steel Roof Clamps
If you directly screw through metal roof panels to fix them, the screw holes can rust and leak. This is the most common problem we’ve seen over years of building hardware production.
Product Introduction
Hide Screws for a Leak-Proof Metal Roof
If you directly screw through metal roof panels to fix them, the screw holes can rust and leak. This is the most common problem we've seen over years of building hardware production.
When producing for customers in China and abroad, we have consistently promoted the hidden fixing concept. The Alu-Zinc Steel Roof Clamps are designed with a simple core idea: hide the fixing points so the roof has no exposed screws. This is our basic solution to waterproofing problems. With these clips, your metal roof looks clean and stays dry.
Clip Panels Firmly, No Exposed Fasteners
This clip is precision-formed using a 100–125 ton press and consists of two parts.
The bottom part is fixed first: attach it firmly to steel purlins (like C-section or Z-section steel) using self-tapping screws. The top part acts like small pliers, gripping the edge of the metal roof panel tightly. The next roof panel covers it, completely hiding the clip.
The final result: from the outside, you see no screws or clips - only complete panel surfaces. The product make roofs both beautiful and waterproof.
Strong Steel That Handles Temperature Changes
We use G450 high-strength Aluzinc steel that meets the ASTM A653/A653M standard, with a yield strength over 450 MPa.
Why such strength? Because the clip must grip panels firmly while allowing for thermal expansion and contraction. Standard thickness is 1.2 mm for secure clamping.
The main benefit: this fixing method allows panels to slide slightly front and back during hot summers and cold winters. The material won't buckle from expansion stress, and the fixing points won't tear. This is why we recommend these clips for areas with large temperature differences.
|
Parameter |
Value |
|
Material |
G450 Aluzinc Steel (ASTM A653/A653M) |
|
Yield Strength |
≥450 MPa |
|
Thickness |
1.2 mm |
|
Fixing Type |
Hidden, allows thermal movement |
|
Application |
Metal roofing panels |
Why Choose Our Alu-Zinc Steel Roof Clamps?
This clip type requires high dimensional precision. If the clip is too small, it won't hold the panel; if too large, the panel will shake. With 20 years of mold experience, we ensure every batch of product has identical dimensions.
Our quality staff perform random checks on gripping force, ensuring products install correctly the first time.
In short, if you want a beautiful, leak-proof metal roof that handles seasonal temperature changes, choose our Stainless Steel Decking Clips with hidden fixing. We have 20 years of stamping and mold experience, serving customers like APEX in Australia. Our factory has 45 machines and supports OEM/ODM, with fast sample development in 15–40 days.
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