Shear Barrel Nuts with Countersunk Head are a unique one-way permanent fastener designed for use in the highest security applications and environments.
Otherwise known as breakaway or “Snap Off” Barrel Nuts, this component features a flat countersunk head with a hexagonal section positioned above it.
Installed into a countersunk hole using a standard hex socket or wrench, the hexagonal section snaps off once the fastening pressure exceeds the maximum torque limit of the barrel nut.
This reveals a plain drive-less head which prevents tampering and removal – an ideal choice for applications where no future maintenance is required.
Countersunk Head Shear Barrel Nuts provide a reliable safety and security solution for a wide range of applications and assemblies. They are typically found in banks, prisons and various industries that require a permanent fixing e.g. aerospace and automotive.
Manufactured from Zinc Plated Steel and A2 / 303 Stainless Steel as standard, with other materials and finishes available on request.
Non-standard sizes, materials and finishes are available to order as specials, including small volume manufacture, modifications and bespoke parts made to drawings. Minimum order quantities apply.
|Technical Data & Available Sizes|
|Thread Diameter (d)||M8|
|Available Sizes (L)||M8|
| = Steel Zinc Plated // = A2 Stainless Steel
Size not listed? Please make an enquiry – we may be able to provide it.