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Anchor Studs

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When pipe joints face moderate longitudinal stresses, you need restraint solutions you can trust. Smith-Blair Anchor Studs offer a proven alternative to traditional harness assemblies, delivering field-tested protection for ductile iron and steel pipe installations.

Core Performance

  • Restrains pipe joints subjected to moderate longitudinal stresses
  • Permanent restraint solution
  • Working pressure based on specific application requirements


Pipe Compatibility

  • Compatible with ductile iron and steel pipe
  • Works with most standard pipe sizes


Working Pressure

  • Based on application


Size Options

  • 5/8" anchor stud with 1/2" NPT thread
  • 1" anchor stud with 1" NPT thread


Material Options

  • Standard: Carbon steel per ASTM A108 GR 1144CD
  • Corrosion Protection Option: Fe/Zn coating per ASTM F1941-10 on carbon steel
  • Stainless Options:
    • Type 304 stainless steel per ASTM A276 GR XM-21 or ASTM A479 GR XM-19
    • Type 316 stainless steel per ASTM A276 GR XM-21 or ASTM A479 GR XM-19

Smith-Blair's leak-resistant studs thread through couplings directly into the pipe for a secure, reliable lock that gives you confidence your critical water infrastructure will perform as designed.

Important: Anchor studs do not replace the need for fixed pipe support.

Available in 5/8" (1/2" NPT) and 1" (1" NPT) configurations to match your coupling requirements, Smith-Blair Anchor Stud Couplings represent decades of field-proven performance and engineering excellence in pipe restraint technology.