Product Overview
This product is a hex flange head self-drilling and self-tapping screw. The entire piece is made of carbon steel, with a surface treated with color zinc passivation for anti-corrosion. The screw integrates a hexagonal drive head, an integrated flange sealing washer, self-tapping threads, and a drilling cutting tip. Requiring no pre-drilling, it completes drilling, tapping, and locking in one step. It is a specialized heavy-duty fastener for light steel construction and metal steel structure support, suitable for connecting medium-to-thick steel plates, multi-layer color steel sandwich panels, and other metal components. It balances installation convenience with waterproof sealing performance.
Product Applications
Light Steel Engineering: Fixing color steel tiles, sandwich panels, and C-shaped steel purlins for factory buildings, warehouses, and rain sheds.
Outdoor Facilities: Assembling steel frames for greenhouses, billboards, metal railings, and awnings.
Electromechanical Installation: Fastening ventilation ducts, distribution boxes, and equipment metal brackets.
Decorative Enclosures: Splicing metal partitions, prefabricated iron fences, and small steel frame structures.
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