Expansion Bolts

Uses

Expansion Bolts are for heavyweight fixings in concrete, masonry or natural stone. Great for installing a safe into the wall or floor. Vertical and horizontal loads can be handled. When tightening the bolt the nut is pulled into the shell expanding it and wedging it outwards inside the anchor base. Yellow passivation coating making it more rust resistant. Expansion bolts are used for heavy duty fastening and fixing of steel or wood structures to masonry, concrete or bricks.

Preparation

• Electric power drill
• Masonry drill bit
• Steel or wood drill bit
• Spanner
• The substrate should be structural sound

Method

• Mark the correct position of the hole for the expansion bolt.
• Drill the hole-size for shell (see table).
• Remove all loose debris and clean drilled hole out.
• Drill hole in fixture for bolt with steel or wood drill bit (see table).
• Place expansion bolt in wall and tighten the expansion bolt so that the shell expand in the wall into position. Screw the bolt out.
• Align fixture and then screw in the bolt tightly with a spanner (see table)

Fastener Finder