How to install these bolts for a safe


Old 08-24-17, 05:19 AM
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Question How to install these bolts for a safe

I've got a home security safe but I don't know how to install the bolts that came with it, see pictures attached.

The metal sheath does not have a thread, it's loose around the bolt. The smaller end part does have a thread.

Can anyone help me find out:
  • what this type of bolt is called?
  • how to install it?
  • what size hole to drill - the bolt sheath is 10mm in diameter?
  • which part is meant to expand?

A picture of the wall where the bolts are to be inserted is also attached.

Thank you in advance.
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Old 08-24-17, 05:33 AM
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The sleeve expands as the nut is drawn into the sleeve.
Old 08-24-17, 05:34 AM
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If you look at the part that goes into wall you will see a tapered head.. As you tighten the nut it will expand and lock in wall. Need a 10 mm drill. If going into concrete you will need a masonry bit. If that is a block wall those may not work. If you drill into a hollow of wall you will need a different anchor.Something like this
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