Retort Bosshead with a ClampA Boss head is one of the three things that holds a Florence flask or Conical flask on a retort stand.A Boss head is used to keep the clamp in place so if you put a glass holder in between the clamp it doesn’t fall/break.
Black Steel vices & G-Clamps are manufactured from Spheroidal Graphite (SG) iron which provides higher mechanical strength & ductility. increased shock resistance & durability with extreme precision and grip.The Black Steel G-Clamp is perfectly meshed with a ball joint swivel pad and an ACME thread spindle that is chrome plated to resist corrosion.
