Longze Wood Screws (Timber Screws) are high-precision fastening solutions engineered to meet rigorous DIN 95/96/97, ISO 7050, and ASME B18.6.1 standards. Specifically designed for professional carpentry, furniture manufacturing, and structural timber framing, these screws feature a specialized tapered shank and deep, sharp thread geometry that ensures maximum grip within wood fibers, providing a high-strength connection that resists pull-out while accommodating the natural expansion and contraction of timber.
Available in a wide array of materials from high-ductility Carbon Steel for indoor cabinetry to Marine Grade Stainless Steel (SS316) for extreme coastal environments, Longze screws provide the versatility required for both structural integrity and decorative excellence. Whether you require the flush finish of a countersunk head or the robust support of a round head, our precision-manufactured fasteners guarantee a secure, split-free installation across various wood species and composite materials.
Detailed Parameters
| Standard Compliance | DIN 95 / 96 / 97 / ISO 7050 / ASME B18.6.1 | Metric Size Range | 2.0 mm to 10.0 mm (Diameter) |
|---|---|---|---|
| Inch Size Range | #2 to #24 (Diameter) | Head Styles | Flat (Countersunk), Round, Oval (Raised Countersunk) |
| Drive Types | Slotted, Phillips, Pozi, Torx (6-Lobe) | Material Grades | Carbon Steel, SS304, SS316, Solid Brass |
| Surface Finishes | Zinc Plated, Black Oxide, Brass Plated, Hot-Dip Galvanized | Tensile Strength | 400 MPa to 600+ MPa (Material Dependent) |
| Salt Spray Test | 24h to 800h (Coating Dependent) | Thread Geometry | Coarse, Sharp Wood-Cutting Threads |
Key Advantages
Superior Corrosion Resistance
From Yellow Zinc for indoor use to SS316 and Hot-Dip Galvanized for marine and treated lumber, ensuring long-term durability.
High-Efficiency Driving
Self-centering gimlet points ensure rapid starts and precise tracking, significantly reducing manual and power driving effort.
Precision Gap-Free Joints
The smooth shank segment allows the top board to be pulled tightly against the bottom board for a professional, seamless fit.
Anti-Splitting Geometry
Engineered coarse threads cut cleanly into wood fibers without splitting the grain, preserving the integrity of the timber.
Diverse Aesthetic Profiles
Offering Round, Countersunk, and Raised Countersunk heads to meet both hidden structural and visible decorative needs.
Global Standard Compatibility
Fully compatible with both Metric (DIN/ISO) and Imperial (ASME) specifications for international project seamlessness.
Product Gallery
Management Platforms
ISO 9001 Quality Control
Certified production processes ensure consistent thread sharpness and drive depth across all batches.
Rigorous Bending Tests
Random batch testing verifies that screws bend without snapping, ensuring optimal heat treatment.
100% Point Inspection
Every gimlet point is inspected to ensure maximum start-up performance and ease of installation.
Export-Ready Packaging
Available in 25kg export cartons and fumigation-free pallets for safe global logistics.
Custom Distributor Kits
Custom retail window-boxes or plastic tubs available for wholesalers and distributors.
Rapid Technical Support
Professional technical recommendations and factory-direct pricing with a 12-hour reply guarantee.
Investment Return Comparison
| Material Grade | Durability Level | Primary Application |
|---|---|---|
| Carbon Steel | Standard | Indoor Furniture & Cabinetry |
| Stainless SS304 | High | Outdoor Decks & Fencing |
| Stainless SS316 | Extreme | Marine & Coastal Structures |
| Hot-Dip Galvanized | Very High | Treated Lumber & Fencing |
| Solid Brass | Premium | Antique Restoration & Decor |
Frequently Asked Questions
The smooth shank allows the top board to spin freely, which creates a clamping effect that pulls the two pieces of wood tightly together, eliminating gaps between the joints.
No, standard zinc screws will corrode quickly due to the chemicals in treated lumber. We recommend using Hot-Dip Galvanized or Stainless Steel (SS304/SS316) wood screws for these applications.
To prevent splitting, especially in hardwoods, it is essential to drill a pilot hole approximately 70% to 80% of the screw's diameter before driving the fastener.
For a flush finish, the DIN 97 Countersunk head is the ideal choice. Using a countersink bit to create a 90-degree recess will allow the head to sit perfectly level with the wood surface.
While they can be used, composite materials like MDF often benefit from specialized Chipboard Screws, which have thinner shanks and deeper threads to prevent the material from crumbling.
SS304 (A2) is rust-resistant and suitable for general outdoor use. SS316 (A4) contains molybdenum, making it acid-resistant and essential for marine environments or coastal areas with high salt exposure.
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