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Unit of Measure

Technical Specs

Thread Size

 N/A 12-28

Thread Type

 N/A Unified National Fine (UNF)

Nominal Size

 N/A 0.216 Inch

Unified Pitch Diameter (UPD)

 N/A 0.1886 Inch

X Tolerance Go =-/No Go =+

 N/A 0.0003 in

Type

 N/A No Go

Holder Number

 N/A 1

Material

 N/A Steel

Root Relieved Thread Ring Gages

Root Relieved Thread Ring Gages

 N/A Thread ring gages are root relieved for longer and more accurate gaging life. A root clearance at the major diameter eliminates any possibility of interference from the full form of the setting plug and major diameter of the part being checked. This gives assurance that flanks of thread are making proper contact.

Hard Chrome

Hard Chrome

 N/A Add 10% for hard chrome gages.

Additional Information

Additional Information

 N/A
  • Graphitic Tool Steel for superior quality and longer wear.
  • Heat treated and cold treated for extreme stability.
  • Lapped for extra precision and longer wear.

Note

Note

 N/A
  • Prices are the same for all UNC and UNF series having standard pitch diameters.
  • Pitch diameters not listed are considered special and will be made to your specifications.
Consult Factory for Special Gages - Preplate, Extra Length, Multiple Lead, Acme, Etc.