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WINTERHOFF BV 40-1 trailer side hitch for eccentric trailer side locking
The BV 40-1 eccentric side hitch from WINTERHOFF is a robust trailer hardware component designed to securely and permanently secure the sides of cargo, agricultural, and utility trailers. The hitch is 250 mm long and has a load capacity of up to 1100 kg , ensuring its durability even under heavy use . The hitch is equipped with a safety pin to prevent accidental opening, and a flexible plastic cord prevents loss, ensuring comfort and safety.
An eccentric lock is a mechanical locking element that operates on the principle of a rotating eccentric element—an element with an offset center that generates pressure during closing. This design ensures a secure and strong closure , even with minimal play. It is used in toolboxes, service doors, machine hatches, trailers, and vehicle bodies, among other applications. It ensures tightness, eliminates vibration, and is easy to operate, therefore finding wide application in industry and transportation .
The product is made of high-quality galvanized steel , which provides high rigidity and resistance to mechanical damage . The zinc coating effectively protects the element against corrosion and the harmful effects of external factors such as moisture, road salt, and changing weather conditions. This ensures long life and reliability in everyday use .

Certificates
The hitch is TÜV certified , confirming its quality, safety, and compliance with stringent European standards. TÜV is a renowned international certification body known for conducting detailed inspections and testing of technical products. This certification is particularly important for trailer components, as it certifies their durability, reliability, and compliance with regulations permitting safe use in road traffic .
Trailer hardware, such as hitches and side locks, play a crucial role in ensuring the safety of transported cargo. They enable the sides to be securely and quickly closed , preventing them from opening while driving. They are used on all types of trailers – from transport trailers to construction and agricultural trailers – especially when frequent opening and closing of the sides is required. They ensure the sides remain securely closed even under heavy loads, ensuring safe and comfortable transport of goods.
Fits side fasteners:
- BVG 40-A