Yardley® Standardized Molded-In Inserts
Threaded Inserts Designed for
Molding in Plastics, Rubber and Ceramics
CLICK ON TYPE TO VIEW

Type B

Advantages

  • Class II threads meet A.S.M.E. (U.S.) specifications
  • Metric threads meet ISO specifications
  • Holes tapped to maximum depth for overall length
  • Holes burnished after tapping
  • For use with or without locating pins

Available from stock in Brass, Aluminum and Stainless Steel

Custom sizes/materials available
 


U.S. Part Number Metric Part Number A
U.S. Thread Size		 A
Metric Thread Size		 B
Diameter Over Knurl		 C
Length
+.000
-.010		 D
U.S. I.D. Tolerance +.0015 -.0000 after tapping		 D
Metric I.D.
(Inches)
+.0015 -.0000
after tapping
256B4-5¹ 2004B4-5¹ 2-56 M2.0 x 0.4 .133 .156 .070 .064
440B5-6 3005B5-6 4-40 M3.0 x 0.5 .169 .187 .089 .100
540B6-7²   5-40   .200 .218 .104  
632B6-8 3506B6-8 6-32 M3.5 x 0.6 .200 .250 .110 .117
832B7-8 4007B7-8 8-32 M4.0 x 0.7 .232 .250 .136 .133
832B7-9 4007B7-9 8-32 M4.0 X 0.7 .232 .281 .136 .133
1024B8-10   10-24   .266 .312 .154  
1032B8-10 5008B8-10 10-32 M5.0 X 0.8 .266 .312 .161 .168
25020B12-15 6010B12-15 1/4-20 M6.0 X 1.0 .391 .468 .204* .200*
25028B12-15²   1/4-28   .391 .468 .215*  
31218B16-18³ 80125B16-18³ 5/16-18 M8.0 X 1.25 .516 .562 .261** .267**
37516B18-22³ 10015B18-22³ 3/8-16 M10.0 x 1.50 .578 .687 .318** .337**
50013B24-28³ 120175B24-28³ 1/2-13 M12.0 x 1.75 .766 .875 .430** .404**

Materials: (1) Brass and Stainless Steel only (2) Aluminum and Brass Only (3) Brass Only
Tolerances: * +.002 -.000 after tapping **Check with our engineering department for tolerances

Hole Preparation Guidelines

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