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Socket Shear Bolts

Security socket shear bolts

For use where no maintenance is required, shear snap-off bolts are a premium 1-way permanent security solution.

  • Vandal resistant 1-way security bolt, permanent security fixing
  • Security bolt with unique shear off (snap-off)feature
  • Fastened using a standard hex Allen key or screwdriver
  • Ideal for use in prisons, banks, automotive, MOD and aerospace
  • Also effective for securing solar panels

How socket shear bolts work

Security shear bolts, (breakaway bolts, snap off bolts) offer a secure fixing solution for applications needing the highest level of security.

Socket shear bolts are fastened using a standard 6mm A/f insert bit, key wrench or screwdriver. The conical shaped socket portion attached to the head snaps off once fully tightened to the breaking torque (18/25 nm, leaving a slim profile plain head with no drive with which to remove the bolt.

No security tools are required, however the bolt is irremovable once fastened in place, so these fixings are not suitable for applications requiring maintenance.

Socket shear bolts are suitable for higher torque applications, in high-security environments where there will be no requirement to remove them, once fastened.

Shear bolts available from stock and to order

Snap-off security bolts are usually manufactured in A2 stainless steel, with other materials available to order.

Popular sizes are held in stock, with other sizes available to order with relatively short lead times. We can also manufacture to your specification or drawing.

See our full range of shear bolts here.

Thread / Length (mm) 6 8 10 12 16 20 25 30 35 40 45 50

Socket Shear Bolt Features

  • Vandal Resistant 1 Way Permanent Security Bolt With Unique Shear (Snap) Off Feature
  • Tamper proof – Permanent Security Fixing
  • Requires Standard Hex Allen key or Screwdriver

Socket Shear Bolts, also known as breakaway or snap off bolts, are permanent high security bolts available off the shelf in A2 stainless steel.

As with other shear bolts, these security fixings are fastened until the head “snaps off” leaving a permanent security fixing. Where the socket shear bolt differs is that instead of requiring a socket tool or spanner to fasten, it can be fixed using a key wrench or screwdriver. Please see the video tab for a demonstration of how the socket shear bolt works.

Shear bolts offer one of the best permanent security solutions available on the market and the nature of the bolt means that it is suitable for higher torque applications. It’s important to determine whether future maintenance will be required on your application in judging the suitability of shear bolts, as they cannot be removed once fastened. Socket shear bolts are often used in environments requiring high security such as prisons, banks, automotive, aerospace and Ministry of Defence.

Shear screw technical drawing

DK (mm) 13
K1 (mm) 8.6
K2 (mm) 1
SW (mm) 6

*For guidance purposes only

Socket Shear Bolt

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