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Unit of Measure

Technical Specs

Thread Size

 N/A 5/16-18

Thread Type

 N/A Unified National Coarse (UNC)

Unified Pitch Diameter (UPD)

 N/A 0.2764 to 0.2817 Inch

X Tolerance Go =+/No Go =-

 N/A 0.0003 Inch

X Lead Tolerance

 N/A 0.0003 Inch

X ± Half Angle Tolerance

N/A 0º10'

Type

 N/A Double End (Set)

Handle Number

 N/A 1

Material

 N/A Hard Chrome

Graphitic Tool Steel

Graphitic Tool Steel

 N/A All thread gages are made of the finest oil hardened graphitic tool steel available. Because of the graphite lubricant qualities in this steel, (which reduces friction) and high carbon content, it produces superior long wearing qualities.

Hard Chrome

Hard Chrome

 N/A All standard thread plugs are supplied in hard chrome at no additional cost.
  • 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.
UNJ Threads: Add $10.00 Per Member.
Add 30% For Class W, Tolerance