Shandong Churan Metal Materials Co., Ltd.

22A Drywall Nail

22A drywall screws (1022A material wallboard screws) are manufactured from SWRCH22A cold‑headed carbon steel wire, undergo carburizing and quenching for hardening, and feature a countersunk, cross‑recessed head with a flared design. They are available in coarse‑thread and fine‑thread versions, with black phosphating or gray phosphating surface finishes.
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Product Introduction

22A drywall screws (1022A material wallboard screws) are manufactured from SWRCH22A cold‑forged carbon steel wire, undergo carburizing and quenching for hardening, and feature a flared cross‑recess head. They are available in coarse‑thread and fine‑thread versions, with black or gray phosphating surface finishes. These self‑tapping screws are specially designed for gypsum board and light‑steel framing applications in construction projects; they require no pre‑drilling, ensuring efficient installation, and are widely used for interior partition walls, suspended ceilings, and panel fastening.

Core Product Features

22A: Dedicated carbon steel substrate, heat-treated for enhanced hardness, delivering strong torque and preventing nail breakage or thread stripping during driving.
The horn‑shaped countersink design allows the screw to be fully recessed into the panel surface, ensuring a smooth, flush finish after puttying.
Standard PH2 Phillips head, compatible with standard screwdriver bits, ensures smooth, high-speed driving without slipping or stripping the screw slot.
The fine‑thread version is suitable for light‑gauge steel framing, with smooth tapping and strong clamping force; the coarse‑thread version is designed for timber joist substrates, providing secure and reliable fastening.
Phosphating surface treatment provides inherent lubrication, reduces driving resistance, and offers basic rust‑preventive properties.
The tip is sharp and can directly penetrate gypsum board, calcium silicate board, thin sheet metal, and wood panels without the need for pre-drilling.
The threads are uniform and free of burrs, reducing the risk of board chipping and ensuring durable anchorage that resists loosening.
Available in a full range of specifications, covering both residential and commercial construction needs; boxed packaging facilitates on-site storage and bulk purchasing.

Specification and Model

Model number Screw length Reference Use Cases
3.5×16 16mm Fixing of thin gypsum boards, backer boards, and lightweight panels
3.5×20 20mm Single-layer gypsum board and thin calcium silicate board ceiling
3.5×25 25mm Conventional partition walls, single-layer gypsum board fixed to light-gauge steel framing
3.5×30 30mm Thickened gypsum board, double-layer board, and thin wood substrate
3.5×35 35mm Double-layer gypsum board with wooden furring strips + gypsum board assembly
3.5×40 40mm Thick plates, multilayer panels, and localized reinforcement locations
3.5×45 45mm Reinforcement with thick base layers and composite panels
3.5×50 50mm Double-layer thick plate, fastened under extended operating conditions.

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Company Mission Focused on the supply and custom processing of metal materials, we leverage reliable sourcing, consistent quality, and efficient service to help clients reduce costs and enhance efficiency, create opportunities for our employees, and empower the development of the industry as a whole.

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Rooted in the Qilu region, reaching across the nation, and expanding globally, we aspire to become a comprehensive supply chain service provider within the metal materials industry—distinguished by high quality and an impeccable reputation—and to build a respected, sustainable industrial brand destined to endure for a century.

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With a commitment to excellence, innovation, and sustainability, the company has established itself as a trusted partner in the international steel industry.After nearly two decades of relentless endeavour, our client base now spans over 110 countries and regions across Europe, the Middle East, South America, and Southeast Asia.

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Focused on the supply and custom processing of metal materials, we leverage reliable sourcing, consistent quality, and efficient service to help clients reduce costs and enhance efficiency, create opportunities for our employees, and empower the development of the industry as a whole.

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