Three-piece Built-in Expansion Bolts for Hollow/Porous/Foam Brick
Designed for secure fastening in special building materials like hollow brick, porous brick, and foam brick, our Three-piece expansion bolts deliver reliable performance with their robust construction.
Crafted from carbon steel material screws and available with plain finish expansion bolts or zinc plated finish screws for corrosion resistance, these built-in expansion screws ensure durability in various building application screws scenarios—such as wall-mounted fixtures, brackets, or light structural supports.
| Capacity | Strong |
| Standard | DIN GB |
| Product name | Three-piece built-in expansion bolts hollow brick porous brick foam brick special expansion screws |
| Surface treatment | Galavanized |
| Size | M6-M24 |
| Sample | Provide |
| OEM | Accpeted |
| Packing | Carton+pallet |
| Delivery time | 15-30 working days |
| Hardware Factory Workshop |
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| With years of hardware production experience, we utilize high-precision, advanced production equipment and cutting-edge technologies & craftsmanship, and have partnered with multiple well-known brands. Backed by a strong design team, professional technical expertise, and strict management systems, we ensure our fasteners are of excellent quality and reliable performance, delivering high-quality products to you. |
FAQ
Q1:How many coutries you already exported ?
A1:Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Turkey,Jordan,etc.
Q2:How can l get some samples?
A2:Small samples in store and can provide the samples for free. Catalgue is available, most patternswe have ready samples in stock.Customized samples will take about 5-7days.
Q3:What is the delivery ?
A3:Sample order's delivery time is 5-7 days. Container orders are about 15-20 days