The unique knurled split expansion sleeve design of drop-in anchors creates full friction contact with the inner wall of drilled holes after tightening. Compared with plastic expansion tubes and light-weight external expansion bolts, our internal drop-in anchors provide far stronger tensile and shear bearing capacity.
Applicable Hard Base Materials
Dense reinforced concrete, compact solid concrete wall
Solid clay brick, solid masonry wall, natural hard stone
Not Suitable Substrates
Hollow brick, aerated lightweight block, hollow slab, porous gypsum board
Drop-in anchors are specially developed for all projects with strict heavy-load anti-pullout demands, covering mainstream engineering fields:
Fixing heavy mechanical equipment, industrial air compressors, machine tool brackets, wall-mounted heavy storage racks on solid concrete walls. The stable anchoring force prevents equipment displacement and falling during long-term vibration operation.
Suspension and fixing of fire main pipelines, ventilation air ducts, exhaust pipe support frames. Long-term overhead hanging loads demand consistent pullout performance to eliminate hidden dangers for fire protection engineering.
Large-area heavy suspended ceiling systems, cable tray brackets, overhead steel structure hanging components for commercial buildings, factories and underground parking lots.
Uniform expansion structure: The whole knurled sleeve expands evenly without local stress concentration, improving overall pullout resistance;
All-metal galvanized body: High structural rigidity, no deformation under heavy tension;
Simple installation: Only drill, embed and tighten, no special expansion tools needed, greatly boosting on-site construction efficiency for engineering teams;
Complete size specifications: Cover M6–M20 standard sizes, support mixed bulk wholesale to match different load demands of projects.
As a professional fastener manufacturer, we mass-produce standard drop-in anchors with electro-galvanized anti-rust surface treatment.
Large in-stock inventory for fast bulk order delivery;
Competitive factory wholesale price for hardware distributors, engineering contractors and fire protection project suppliers;
Support OEM customization: customized size, logo marking and export packaging for regional market distribution;
Provide official load pullout test reports for project bidding and engineering acceptance inspection.