The M-SPV-4 ValuMax® SPV 12.7 mm diameter post has a M4 tapped hole in one end and a M6 tapped hole in the other end. The 101.6 mm length post is supplied with a M4 double-ended set screw, so the set screw can be easily removed regardless of which end protrudes. ValuMax series posts can also be used with VPH and VPT series post holders. ValuMax® Series Posts and Post Holders are precision molded from a composite material with thermal and electrical insulating properties as well as an exceptional degree of thermal stability, dimensional stability, and chemical resistance. ValuMax posts and post holders are ideal for cost sensitive or non-critical mounting applications.