Standardized Type C Threaded Inserts Closed End

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Item # 440C5-10AL


  • Class II threads meet A.S.M.E. (U.S.) specifications
  • Holes tapped to maximum depth for overall length
  • Holes burnished after tapping
  • For use with or without locating pins
  • Counter bore for mating with Type D Inserts and for shoulder pin locating


Yardley Standardized Molded-In Inserts are designed for molding in plastics, rubber and ceramics. These threaded inserts feature patented designs for molded-in use. Close tolerance of minor thread diameter and careful burnishing of inner thread crests assure snug fit on pins. Extremely flat ends on inserts (with no burrs, ridges or other defects) mean no leakage of material on the face of the mold.


Thread Type


U.S. Thread Size (A)

Outside Diameter (B)

Outside Diameter Reference (B)

Length (C)

Length Tolerance (C)

U.S. I.D. (+.0015 -.0000 after tapping) (D)

U.S. Minimum Number of Full Threads (E)

Counter Bore Size (+.005 -.000) (F)

Counter Bore Depth (+.010 -.000) (G)

Base Materials

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Installation Methods


Safety Notes

WARNING: This product contains lead, a chemical known to the State of California to cause cancer and birth defects or other reproductive harm.