Allen Bolts / CSK Bolts

A hex key, Allen key or Allen wrench is a tool used to drive bolts and screws with hexagonal sockets in their heads.

CSK Bolts or Countersunk bolts are used when a smooth surface is required. Common applications include: bridge decking, walkways, and railing.

Hindustan Engineers are the manufacturers exporters & suppliers of CSK Bolts and Allen Bolts in India.