Buy China Factory Suppliers Heavy-Duty Stainless Steel Expansion Bolt for Concrete and Brick Wall Fixing Supplier, Factories
Product Description
Product Application
Widely used in construction engineering, hardware installation, curtain wall fixing, pipeline support, outdoor shelf installation, and mechanical equipment fixing scenarios; suitable for solid concrete, brick wall, stone, and other hard bases.
Applied for permanent fastening of various brackets, hangers, metal components, furniture accessories, and outdoor facilities, providing stable and durable fixing support for heavy objects and structural parts.
Compatible with various installation tools and construction scenarios, suitable for indoor and outdoor hard base fastening, especially for environments with high anti-corrosion and anti-rust requirements.
Ideal for coastal areas, humid workshops, outdoor engineering, and other harsh environments, preventing rust failure and ensuring long-term fastening safety.
Suitable for engineering renovation, equipment installation, maintenance, and various structural applications; easy to operate with strong adaptability to meet heavy-duty fixing demands.
Material & Processing Features
Manufactured from high-grade 304 or 316 stainless steel, offering outstanding rust resistance, salt spray resistance, and chemical corrosion resistance for long-term use in harsh environments.
Adopts precision cold heading and machining processes, ensuring smooth threading, uniform sleeve thickness, and strict dimensional tolerances for a secure fit and stable expansion.
Integrated expansion sleeve design delivers uniform stress distribution during expansion, creating powerful gripping force against the base to prevent slipping or loosening under dynamic loads.
Hexagon head configuration fits standard wrenches effortlessly, facilitating labor-saving installation, high structural hardness, and resistance to deformation during tightening.
Surface passivation treatment significantly enhances wear resistance and anti-corrosion properties, prolonging service life and maintaining reliable performance over time.
Core Product Benefits
Strong expansion gripping force binds firmly with solid bases, providing high load-bearing capacity to safely prevent detachment and structural loosening.
Premium stainless steel composition eliminates rust risks and premature failure hazards in tough conditions, notably cutting down future maintenance expenses.
Streamlined installation process needs no complex auxiliary tools, making on-site construction faster, boosting efficiency, and reducing project schedules.
Full range of standard specifications across diameters and lengths, backed by custom manufacturing capabilities to match exact engineering depths and load demands.
Strict compliance with international fastener standards, fully verified by tensile tests, hardness tests, and neutral salt spray tests for reliable quality.
Broad applicability and proven heavy-duty performance make this fastener a reliable, cost-effective choice across construction, industrial, and outdoor applications.
Detail Pictures
304 stainless steel is suitable for most indoor and general outdoor environments. 316 stainless steel contains molybdenum, providing superior resistance to chlorides and marine environments, making it ideal for coastal or highly corrosive industrial areas.
These expansion bolts are primarily designed for solid base materials like concrete, solid brick, and stone. For hollow materials, specific hollow-wall anchors are recommended to ensure maximum safety.
Selection depends on the load requirements and the thickness of the fixture. We offer various diameters and lengths; generally, heavier loads and thicker fixtures require larger diameters and deeper embedment depths.
Yes, the integrated expansion sleeve design provides uniform stress and a strong gripping force, which helps maintain stability and prevents loosening even under moderate vibration and dynamic loads.
Yes, we support customized processing. We can manufacture expansion bolts with specific diameters and lengths to meet your unique engineering and load-bearing requirements.
Installation is simple and requires standard construction tools: a hammer drill with the correct bit size to create the hole, a hammer to drive the bolt in, and a standard hexagon wrench to tighten the nut.
