Yardley® Bi-Sert® Inserts
Designed to Provide Permanent Metal Threads
in Molded Plastic parts

Advantages

  • Hex shape provides exceptional torque and pull-out resistance
  • Best design available for use in rotational molding
  • Space between the hexes provides excellent flow characteristics, making it ideal for use with fiber-resin plastics
  • Inside diameter is reamed for a smooth fit on locating pins

Available from stock in Brass

Custom sizes/materials available

The Yardley BI-SERT insert is designed to provide permanent metal threads in molded plastic parts. The unique hex shape provides exceptional torque and pull-out resistance.
 

U.S. Part Number Metric Part Number A
U.S. Thread Size		 A
Metric Thread Size		 B
Outside Diameter		 B2
Minor Diameter
±.005 		C
Length
+.000
–.005 		D
U.S.
+.0015
–.000 		D
Metric
+.0015
–.000		 E
±.003 		F
U.S. Minimum Number of Full Threads		 F
Metric Minimum Number of Full Threads
440BS6-10 3005BS6-10 4-40 M3.0 x 0.5 .187 .156 .313 .089 .100 .040 7-1/2 10-1/2
632BS7-12 3506BS7-12 6-32 M3.5 x 0.6 .218 .187 .375 .110 .117 .050 7-1/2 9-3/4
832BS8-13 4007BS8-13 8-32 M4.0 x 0.7 .250 .218 .407 .136 .133 .060 8 8
1024BS10-15   10-24   .312 .250 .469 .154   .070 6-1/2  
1032BS10-15 5008BS10-15 10-32 M5.0 x 0.8 .312 .250 .469 .161 .168 .070 9 9
25020BS14-22 6010BS14-22 1/4-20 M6.0 x 1.0 .437 .375 .687 .204* .200* .125 9-1/2 11
31218BS20-26 80125BS20-26 5/16-18 M8.0 x 1.25 .625 .500 .812 .261* .267* .155 9-1/2 10-1/2
37516BS22-30 10015BS22-30 3/8-16 M10.0 x 1.5 .687 .562 .937 .318* .317* .165 10 10

* Check with our engineering department for tolerances.

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