The Break Off Nuts, also known as shear nuts or security nuts, represent a specialized category of fasteners engineered for permanent, tamper-resistant installations. Constructed from grade 304 stainless steel, these Break Off Nuts offer excellent corrosion resistance, ensuring long-term reliability and structural integrity in demanding environments. The fundamental design principle involves a pre-weakened section that facilitates controlled fracture, which is central to their security function.
The defining operational characteristic of the Break Off Nuts is their unique installation and removal process. During installation, they are tightened using a standard wrench until a predetermined torque is reached. The upper part of the nut (often called the “break ring”) will cleanly and neatly separate from the lower base.This action leaves a smooth, permanent base nut that cannot be gripped by conventional tools, thereby providing a high level of security against unauthorized removal.
Available in a range of standard metric sizes including M6, M8, M10, M12, and M16, these Break Off Nuts feature a standard hex head that matches the dimensions specified in DIN934 prior to shearing. This allows for straightforward installation with common tools. The nuts can be supplied with different surface treatments such as plain (self-color), waxed, galvanized, or blackened, offering options for various environmental conditions and application-specific requirements.
The primary application for Break Off Nuts is in public infrastructure and high-security environments where vandalism, theft, or tampering is a concern. They are extensively used in securing street furniture, traffic sign assemblies, railway components, and utility access panels. The A2-grade stainless steel construction ensures that the Break Off Nuts maintain their anti-corrosion properties while providing a reliable, one-time fastening solution that does not compromise on mechanical strength.
Break Off Nuts provide an effective and permanent fastening solution for security-critical applications. Their design, which combines the material benefits of 304 stainless steel with a controlled shear mechanism, ensures that once installed, the fastened assembly remains securely protected. The availability of multiple sizes and surface finishes makes them a versatile choice for engineers and maintenance teams seeking a robust anti-tamper fastener.
Post time: Dec-02-2025