SCREWS

A screw and a bolt are similar types of fastener typically made of metal and characterized by a helical ridge, called a male thread. Screws and bolts are used to fasten materials by the engagement of the screw thread with a similar female thread in a matching part.
Size Range:M3 – M6
  
Available Grades:4.8,5.8,8.8, 10.9, 12.9, SS 304, SS 316,