Fastener & Fitting Seal Family | Zatkoff

Fastener & Fitting Seal Family

Fastener & Fitting Seal Family


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.


  • Stat-O-Seals
    • Intended to seal immediately under the head of a bolt
  • ThredSeals
    • Intended for sealing directly on the fastener threads
  • Lock-O-Seals
    • Ideal for sealing small and miniature sizes
  • Specialty Products
    • Custom designed fastener and fitting seals