Stud Bolts are externally threaded fasteners without a head, used with 2 nuts on either side, substituting a usual "bolt & nut" assembly. Stud bolts are prominently used in flange connections.
Depending upon their design and threading patterns, there are different types of stud bolts as below.
Stud Bolts with uniform threads over the length are termed as continuous thread stud bolts. This type usually does not carry a chamfered end.
Stud Bolts with unequal length of threads at extreme ends with non-threaded center.
Stud Bolts with equal thread lengths at either end with non-threaded center.
Stud Bolts with equal thread lengths at either end with center reduced further than the actual diameter of the stud.
This category stands exclusive for studs bolts used in flange connection with continuous thread over the length and chamfered ends. The theoretical length is measured from its first to last thread unlike regular "Continuous Thread Stud Bolts".
Unlike others, these are welding studs used with nut on one side and welded to the support on the other. Primarily manufactured as per DIN 525.
Stud Bolts can be manufactured and supplied in metric and imperial sizes with variety of screw thread profile. Some of the common thread profile for stud bolts are ISO Metric, UNC, UNF, UN, ACME, and WHITWORTH.
BoltPort produces Stud Bolts in many alloys & ASTM material specifications. ANSI, ASME, DIN, ISO, BS & IS standards specifies many dimensional standards for Stud Bolts among which ANSI/ASME B16.5, DIN 976, DIN 2510 are a common chapters.