How to install these bolts for a safe

Old 08-24-17, 05:19 AM
Thread Starter
Join Date: Aug 2017
Location: UK
Posts: 2
Upvotes: 0
Received 0 Upvotes on 0 Posts
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.
Attached Images    
Old 08-24-17, 05:33 AM
Join Date: Feb 2006
Location: USA
Posts: 6,416
Received 66 Upvotes on 57 Posts

The sleeve expands as the nut is drawn into the sleeve.
Old 08-24-17, 05:34 AM
pugsl's Avatar
Forum Topic Moderator
Join Date: Mar 2008
Location: United States
Posts: 8,161
Received 77 Upvotes on 70 Posts
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

Thread Tools
Search this Thread
Ask a Question
Question Title: