M8 Zinc Hollow Wall Expansion Anchor Bolt M6m10m12*150mm Hook Anchor

• Customization: Available
• Standard: DIN, ANSI, GB, BSW
• Material: Medium Carbon Steel
• Model NO.: M4-M16
• Surface Treatment: Galvanized Sheet
• Head Type: Round
• Material Type: Carbon Steel/Stainless Steel
• Grade: 4.8/8.8/A2-70-A4-80
• Expansion Surface: Zinc Galvanized/Plain
• Color: Blue/White/Silver
• Measurement: Metric
• Package: Box
• Usage: Concrete Wall/Construction/Building
• Transport Package: Bluk/Bag/Box/Pallet
• Specification: M4*M16/Other
• Origin: China
• HS Code: 7318160000
• Production Capacity: 3000000

Product Description

Product Description

Hollow Wall Expansion Bolt

Hollow wall expansion bolts are specialized fasteners designed for secure installation in hollow materials like gypsum boards, hollow bricks, and concrete. Their unique structure features a hollow metal sleeve with radial expansion grooves that expand when tightened, creating a frictional grip to prevent loosening under vibration . Typically made of carbon steel or galvanized steel, they are available in various sizes (M4–M8) and surface treatments like zinc plating to enhance durability . Installation involves drilling a hole, inserting the bolt with the sleeve, and tightening the nut to cause the sleeve to expand and lock into the hole, requiring minimal drilling depth and clean hole preparation . These bolts are widely used in construction, ceiling systems, and industrial applications such as HVAC, building fixtures, and lightweight structures . Their in-situ expansion mechanism eliminates the need for pre-drilling, reducing installation time and costs while ensuring reliable anti-loosening performance . Specialized variants, like those with reinforced flanges or multi-leaf designs, are available for high-load applications in concrete and stone . The hollow flange design provides superior load distribution and stability compared to traditional expansion bolts, making it ideal for temporary or permanent fastening in diverse environments .

Specification

Product Name	Hollow Wall Expansion Bolt
Material	Carbon Steel /Stainless Steel
Grade	4.8/8.8/A2-70/A4-80
Type	Cross/Hex/O Type/C Type Head / Jack Nut
Surface Treatment	Zinc Glavanized/Plain
Color	Blue/White/Silver
Measurement	Metric
Size	M4-M16/Other Customized
Length	21/32/38//46/52/60/80/150mm/Other Customized
Service	Support OEM/OBM/ODM Customized Service

Packing & Delivery

Bulk/Fiber Bag/Neutral packing

Carton/Box

Wood Pallet/Box

Bagged packaging is ideal for smaller quantities of fasteners. The fasteners are placed in durable plastic bags, which are then sealed to protect the contents from moisture and dust. Each bag is clearly labeled with product details and quantities. This packaging is easy to handle and transport for smaller orders, making it convenient for workshops and retail settings.

Boxed packaging offers a more structured solution for medium to large quantities of fasteners. The fasteners are packed in sturdy cardboard boxes, which provide additional protection against physical damage during transit. The boxes are designed to stack neatly, optimizing storage space. Each box is labeled with essential information, ensuring easy identification and inventory 

Palletized packaging is used for bulk shipments of fasteners. Multiple boxes or bags are securely strapped onto a pallet, creating a stable and easily transportable unit. This method is highly efficient for large-scale distribution and warehousing. Palletized packaging ensures that large quantities of fasteners can be moved quickly and safely using forklifts, reducing handling time and labor costs.

Company Profile

Certifications

FAQ

Q: What is the estimated lead time for orders?
A: Our estimated lead time is 15-30 days for 1-2 containers and extends to 30-45 days for 3-20 containers, ensuring timely delivery.
Q: Are you a professional manufacturer?
A: Absolutely! We have proudly been at the forefront of manufacturing since 1995.
Q: Is it possible to request a customized size?
A: Indeed! We offer customization services to tailor products precisely to your design specifications.
Q: What export documentation do you provide?
A: Our comprehensive export package includes a Commercial Invoice, Packing List, Bill of Lading, and COC, among other essential documents.
Q: How can I place an order?
A: Simply contact us via email or phone to receive a quote and finalize your order with a Purchase Order (PO).