OEM Q355B Galvanized Base Collar Scaffolding Vertical Standard 48.3mm Custom Length

OEM Q355B Galvanized Ringlock Scaffolding Vertical Standard 48.3mm Custom Length 

1. Durable Q235 Steel Structure with Long-Term Corrosion Protection
   Featuring a hot-dip galvanized Q235 structural steel body, this adjustable base jack delivers excellent strength and corrosion resistance for demanding construction environments. The full-length trapezoidal threaded rod combined with a heavy-duty cast steel wing nut provides smooth adjustment and stable support performance. The galvanized surface helps protect against rust and extends service life during repeated outdoor construction applications.
2. Precision Thread System for Stable Height Adjustment
   The precision-machined thread design ensures smooth nut movement and accurate vertical adjustment without additional tools. The reinforced 4-hole base plate provides a secure connection with concrete floors or steel platforms, offering reliable load distribution under heavy formwork pressure and maintaining stable support throughout the project cycle.
3. Flexible Base Options for Multiple Scaffolding Systems
   Available in both Flat Base Jack and U-Head Jack designs, the product adapts to different construction requirements. The square plate version is suitable for flat surface support, while the U-head configuration provides stable beam support applications. With adjustable threaded rod lengths from 400mm to 800mm and customizable diameters, it can be easily integrated with Ringlock, Cuplock, and frame scaffolding systems without extra accessories.
4. Strict Quality Inspection for Reliable Performance
   Produced under an ISO 9001 certified quality management system, each unit undergoes complete inspection before shipment, including thread fitting tests and base plate welding checks. Every batch is traceable from raw steel materials to finished products, ensuring smooth operation under load, strong welding performance, and compliance with international safety requirements.
5. Fast Supply Capability with Professional Export Service
   With more than 5,000 units of base jacks and U-head jacks available in stock, we support efficient order fulfillment with a standard delivery time of 15–20 working days. Professional export packaging, customized labeling, mixed container loading, and FOB/CIF shipping solutions are available to meet different international purchasing requirements.
6. Wide Application in Construction Support Projects
   Designed for Ringlock scaffolding leveling, concrete slab formwork support, and structural load transfer, the adjustable base jack is widely used in high-rise buildings, bridges, industrial plants, and tunnel construction. Its precise adjustment capability and stable load performance make it suitable for projects requiring safe and accurate temporary support solutions.