





The Hex Head Wood Screw (Self-Tapping Lag Bolt) features a hexagonal head for high-torque wrench drive and sharp self-tapping threads for easy penetration into wood. It provides strong, vibration-resistant hold in wood-to-wood or wood-to-metal connections.
Crafted from durable carbon steel or stainless steel with protective finishes, it's perfect for furniture assembly, woodworking, decking, fencing, construction, and home improvement projects.
High Torque Drive: Hexagonal head allows secure wrench/socket tightening for maximum hold.
Self-Tapping Efficiency: Sharp threads cut clean paths in wood without pre-drilling in most cases.
Corrosion Resistant: Zinc plated/galvanized finish ensures long-term durability indoors or outdoors.
| Property | Specification |
| Product Name | Hex Head Wood Screw (Lag Bolt) |
| Standard | DIN571 |
| Head Type | Hexagonal |
| Thread Type | Self-Tapping |
| Material | Carbon Steel / Stainless Steel |
| Finish | Zinc Plated / Galvanized |
| Grade | Class 4 (Custom higher grades) |
| Application | Woodworking, Furniture, Decking, Construction, Home Improvement |
Factory Direct Price | Fast Delivery | OEM Service
Email: admin@changhua-electrical.com | WhatsApp: +86 181 3296 8158
![]() | ![]() |
![]() | ![]() |




![]() Advanced Cold Heading Precision manufacturing. | ![]() Optical Sorting 0-PPM defects. | ![]() Lab Testing Tensile & Salt Spray. |
![]() Furniture Assembly Strong Hold | ![]() Decking & Fencing Outdoor Durability | ![]() Construction High Torque Fastening |
Q: Can I get free samples?
Yes! We provide free samples for standard wood screws. You only need to cover the shipping cost.
Q: What head styles and finishes do you support?
Hex head self-tapping standard, zinc plated. Custom options available.
Q: What certifications do you have?
We are ISO9001:2015 Certified. Every shipment comes with a Factory Quality Inspection Report.
Q: What is your delivery time?
Stock items: 3-7 days. Mass production: 20-30 days.
Q: Can you produce according to drawings?
Yes, OEM/ODM is our strength. Send us CAD drawings for a quote within 24 hours.
Q: What are your payment terms?
We generally accept T/T (30% deposit, 70% before shipment). For long-term partners, we can discuss L/C.
Get in touch for more information, pricing, or custom requirements.