M8 Shear Nut A4 stainless steel (Permacone - snapoff - Security - Tamper Proof)
| Quantity | Discount | Unit price |
|---|---|---|
| 50 | 10% | £ 0.37 |
| 80 | 15% | £ 0.35 |
| 100 | 20% | £ 0.33 |
| 200 | 25% | £ 0.31 |
| 500 | 30% | £ 0.29 |
| 1000 | 35% | £ 0.27 |
| 2000 | 40% | £ 0.24 |
Volume discounts
| Quantity | Price |
|---|---|
| 50 | 10% |
| 80 | 15% |
| 100 | 20% |
| 200 | 25% |
| 500 | 30% |
| 1000 | 35% |
| 2000 | 40% |
M8 Shear Nut A4 stainless steel (Permacone - snapoff - Security - Tamper Proof)
Shear nuts are also known as breakaway nuts, inviolable nuts, snap off nuts, security nuts, tamper proof nuts or permacone nuts. They are a permanent security solution ideal where maintenance is not required.
They are designed to prevent unauthorised tampering or removal of equipment and facilities. They are typically used in public areas (schools, hospitals etc) and within the fencing industry, e.g. for security perimeter fencing.
Tightened using standard spanner or socket
Breakaway nuts – how they work:
The hexagon nut section is fully tightened with a standard spanner until the pressure applied exceeds the maximum torque limit, which causes the hexagonal part of the nut to break off. This leaves a plain tamper resistant cone shape which is extremely difficult to remove as there is nothing to grip.Dimensions:
Thread: M8AF (Across Flats) = 13 mmB = 13 mmD = 6.5 mmC = 1 mmBreaking Torque : 19 - 25 Nm
| Material | T316 Stainless Steel (A4) |
| Thread Size | M8 |
| Product Type | Nuts - Shear / Tamper Proof |
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After adding the products to the shopping cart you will see a range of options based on delivery to mainland UK. Change country and the delivery options will be modified for your address.
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- We ship orders every weekday
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Every product page and the cart shows the current stock level. Our normal practice is to only ship the full order unless the shortfall is our fault.
If you can see we are short of stock and want to receive what we have as soon as possible, and the remainder when they are available, then add this product to the shopping cart also (UK Only):
Reviews (1)
Did the job
I worried that the torque needed to snap these off was more than the B&Q expansion bolts would bear, but they did snap. Next time I will buy better bolts...
