Buisklem supplies U-bolts and threaded U-bolts for securing pipes, beams, and support structures in construction, ventilation systems, and industrial installations. The distinctive U-shape wraps around cylindrical or rectangular objects, creating a firm and stable hold. This form distributes pressure evenly across the surface, helping reduce stress and prevent deformation. Threaded ends allow for a strong connection with nuts and mounting plates, making installation secure and adjustable.
The range includes M6, M8, M10, and M12 U-bolts, available in hot-dip galvanised, electro-galvanised, and stainless steel (A2, A4). Hot-dip galvanised U-bolts provide corrosion resistance for outdoor railings, steel frameworks, and structural supports. Electro-galvanised U-bolts offer a smooth finish for indoor applications, while stainless steel U-bolts ensure durability in marine environments, food processing, and chemical industries. Threaded M8 and M10 U-bolts are commonly used as pipe clamp U-bolts in installations that require a secure hold with minimal movement.
The curved profile of U-bolts supports pipes while allowing for thermal expansion and vibration absorption. This design is widely used for fluid and gas pipelines, where movement must be controlled without restricting flow. Rectangular U-bolts provide a secure fastening solution for flat beams and framework components, with mounting plates available to reinforce connections and distribute pressure evenly. U-bolts form a complete fastening system when combined with brackets, saddle clamps, and mounting plates.
Threaded ends define the U-bolt as an active fastening component. When tightened against a surface, the thread converts torque into axial force, pulling the bolt’s arms inward and locking the component beneath in place. Without the thread, there is no controlled clamping force, only passive support.
The pitch and cut of the thread allow the pressure to be applied with precision. Each turn of the nut adds tension across the span of the U-bolt, ensuring even distribution and eliminating gaps that lead to movement or loosening. This is critical in systems exposed to vibration, shifting loads or repeated thermal cycles.
The threaded section also makes the U-bolt adjustable. During installation, the clamping position can be set with exact force, corrected without tools beyond a spanner, and re-tightened without degradation of the connection. The thread is the core fastening element, enabling controlled clamping, precise adjustment and reliable structural fixation.
U-bolts are available in a selection of standard thread sizes, including M6, M8, M10 and M12, suitable for securing components of different diameters and weights. In addition to size options, U-bolts are produced in rounded, rectangular and square forms to match the geometry of the mounted element. The range provides enough flexibility to cover most common structural and mechanical setups. Choosing the right combination of size and shape ensures a stable and properly aligned connection.
M6 U-bolts are used to fasten small-diameter tubes, cable trays and light ducting in control cabinets and compact installations. Often mounted to walls, ceilings or within enclosures, this size is ideal for indoor use where minimal space and a clean fit are key to a secure and professional result.
M8 U-bolts are suited for fastening air ducts, light steel pipes and mounting brackets to walls or structural beams. This size is often used in ventilation systems, industrial piping and installations where medium load capacity and adjustable positioning are required without compromising on stability.
M10 U-bolts are selected for securing heavy pipes, machine elements and support frames to steel structures. Common in construction and machinery installations, this size offers reliable strength for fixing components where movement, load transfer or vibration resistance is part of the mounting requirement.
M12 U-bolts are used in outdoor or high-load situations such as pipe hangers, mounting plates and equipment frames. Ideal for securing components exposed to weather, dynamic loads or weightbearing applications where threaded fastening and long-term stability are essential.
In installation work where layout, regulation or timing creates constraints, U-bolts offer a practical fastening method that adapts to the demands of the site. When welding is not permitted due to fire safety codes, the bracket provides a cold-installation alternative without compromising hold. In tight ceiling voids or behind machinery, the low-profile shape fits where bulkier clamps cannot. Layout changes late in the build phase are solved by the threaded connection, allowing brackets to be repositioned without damage. On prefabricated modules, repeatable mounting points speed up assembly while maintaining accuracy across units. In existing systems, new components can be secured using U-bolts without dismantling surrounding assemblies. This fastening method is trusted in technical construction to deliver precise, adjustable mounting where access is limited, surfaces must remain intact, or permanent fixing is not an option.
U-bolts and threaded U-bolts from Buisklem are supplied to professionals across Europe for use in mechanical installations, steel construction and technical system assembly. Every order is supported by technical consistency, fast availability and components designed to meet demanding site conditions.
The full product range is available in M6, M8, M10 and M12, in round, rectangular and square shapes. Standard versions come in hot-dip galvanised, electro-galvanised or stainless steel (A2, A4), with custom coatings and high-load variants available on request. Stock is held locally for rapid order processing, with European-wide logistics in place to support both urgent repairs and large-scale system builds.
