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High-Strength Coarse-Thread Drywall Screws from China Suppliers - Reliable Factory Supply, Fast Delivery
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High - Strength Coarse - Thread Drywall Screws

High - Strength Coarse - Thread Drywall Screws
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High-Strength Coarse-Thread Drywall Screws from China Suppliers - Reliable Factory Supply, Fast Delivery

Short Description:

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Discover premium quality products from one of the leading China suppliers. Our factory offers competitive EXW pricing ranging from 720 USD to 910 USD per ton. We accommodate a minimum order quantity of 2 tons, ensuring flexibility for our customers. Each product is securely packaged in bags or boxes with pallets for safe transport at the port. We ship from major ports including Tianjin, Qingdao, and Shanghai, with delivery times ranging from 5 to 30 days based on order quantity. Payment options include T/T and LC, and we maintain a robust supply capacity of 500 tons per month to meet your business needs.

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    Product Detail

    FOB Price
    US $0.5 - 9,999 / piece
    Min. Order Quantity
    100 pieces
    Supply Capacity
    10,000 pieces / month
    Standards
    DIN / GB / UNC / BSW / JIS, etc.
    Certificates
    ISO9001, ISO14001, ISO45001, SGS
    Grades
    4.8, 8.8, 10.9, 12.9, A2-70, A4-70, A4-80
    Materials
    Carbon steel / Alloy steel / Stainless steel / Brass / Copper
    Surface Treatments
    Plain, Galvanized (ZP), High-Definition, Hot-Dip Galvanized, Dacromet

    The following is an introduction to high-strength coarse-thread drywall screws:

    Key Features

    High Strength
    Made of high-quality carbon steel materials and through heat treatment processes, the surface hardness can reach HV560 - 750, and the core hardness is between HV240 - 450. It can withstand large pulling and torsional forces, and is not easy to deform or break.
    Coarse-Thread Design
    The thread pitch is larger than that of ordinary drywall screws. When screwed in, it can penetrate deeper into the material, forming a stronger connection, providing greater friction and fastening force, making the fixing effect more reliable. Moreover, the driving-in speed is fast, saving construction time.
    Self-Tapping Performance
    The head is in a sharp flared shape. There is no need to pre-drill holes, and it can be directly driven into materials such as wood, gypsum board, and thin metal sheets, and complete the tapping and fastening process by itself, improving construction efficiency.
    Surface Treatments
    Common surface treatments include black phosphating and galvanizing. The black phosphating treatment forms a black phosphating film on the surface, which has good rust-prevention and corrosion-resistance capabilities and lubricity, facilitating screwing in. The galvanizing treatment forms a zinc layer, effectively preventing rust and extending service life.

    Specification Sizes

    Diameter Specifications

    Available in various specifications, common sizes include: 3.5mm, 4.2mm, 4.8mm, 5.5mm, etc.

    Length Range

    Generally between 16mm and 70mm (e.g., 16mm, 25mm, 35mm, 55mm, 70mm, etc.), adaptable to different application scenarios and material thicknesses.

    Application Fields

    Building Decoration

    Mainly used for connecting gypsum boards to wooden or light-steel keels, as well as the installation of light-weight partition walls and ceiling suspensions. It is also suitable for wooden-structure houses, such as fixing wall panels and roof panels.

    Furniture Manufacturing

    Used for the connection and fixation of plates in furniture assembly (e.g., wardrobes, cabinets, bookshelves, etc.), making the connection of plates firmer and ensuring overall structural stability.

    Other Fields

    Applied to the connection and fixation of thin metal sheets and composite materials, including simple building plate fixation, vehicle interior panel installation, and electrical equipment cabinet assembly.

    Frequently Asked Questions (FAQ)

    What is the hardness level of these high-strength drywall screws?

    Through advanced heat treatment processes, the surface hardness of our high-strength coarse-thread drywall screws can reach HV560 - 750, while the core hardness ranges between HV240 - 450. This ensures high resistance to deformation and breakage under large pulling forces.

    What are the benefits of a coarse-thread design over standard threads?

    The coarse-thread design features a larger thread pitch, allowing the screw to penetrate deeper into materials. This provides greater friction, a stronger fastening force, and a faster driving speed, which significantly reduces overall construction time.

    Do these drywall screws require pre-drilling before installation?

    No, pre-drilling is not required. Thanks to their self-tapping performance and sharp flared head design, these screws can be driven directly into wood, gypsum boards, and thin metal sheets, completing the tapping and fastening process efficiently.

    What surface treatments are available, and how do they protect the screws?

    We offer black phosphating and galvanizing treatments. Black phosphating provides a protective film that prevents rust and adds lubricity for easier screwing. Galvanizing creates a protective zinc layer that effectively prevents corrosion and extends the screw's overall service life.

    What sizes and dimensions are commonly available?

    Common diameters include 3.5mm, 4.2mm, 4.8mm, and 5.5mm. Lengths generally range from 16mm to 70mm, offering versatile options for various application scenarios and material thicknesses.

    What materials and grades are these screws manufactured in?

    They are manufactured from high-quality materials including carbon steel, alloy steel, stainless steel, brass, and copper. Available grades include 4.8, 8.8, 10.9, 12.9, A2-70, A4-70, and A4-80.