Most fluid systems have fasteners that must be sealed.
Parker’s fastener seal designs found in the Stat-O-Seals and
ThredSeals feature an elastomeric sealing element molded
in place within a metal retainer (washer). Although resembling
a simple O-ring groove concept, the mold in place fastener
seal offers numerous advantages. Ideal for sealing small and
miniature sizes, the Parker Lock-O-Seal is a two-piece
combination seal comprising a separately molded O-ring
fitted within a surrounding metal washer. Other speciality
fastener seals are also available.