Yardley® Fiber-Sert® Inserts
Self-Tapping Inserts Provide Easily Installed, Strong, Permanent Threads for Wood, Particle Board, ABS, Foamed Plastics and Other Soft Materials
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Advantages

  • Self-tapping and self-locking
  • Lead on both ends simplifies installation
  • Three external flutes give even cutting action
  • Inside threads stay chip-free and clean
  • Coarse, exterior threads give tight lock
  • Inserts won't split thin sections

Available from stock in Brass

Custom sizes/materials available

FIBER-SERT inserts are internally and externally threaded metal bushings that are installed in wood and other comparatively soft materials to provide strong, permanent threads for fastening. They cut their own threads as they are driven (turned) into previously drilled holes and the external flutes provide a balanced cutting action. There are no slots or holes through the wall of the insert so the inside threads stay clean. This permits the driving stud to extend within the whole length of the insert for accurate installation. The coarse, external threads are engineered for maximum resistance to backout and loosening.
 

REGULAR SERIES
 
U.S. Part Number Metric Part Number A
U.S. Thread Size
A
Metric Thread Size
B
Outside Diameter
C
Length
+.000
–.010
D
Outside Thread
E
±.005
F Starting Hole Size
440L11-22 3005L11-22 4-40 M3.0 x 0.5 .218 .344 7/32-11 .166 .068 11/64
632L14-22 3506L14-22 6-32 M3.5 x 0.6 .218 .344 7/32-11 .166 .068 11/64
832L16-26 4007L16-26 8-32 M4.0 x 0.7 .250 .406 1/4-11 .197 .068 13/64
1024L19-30   10-24   .296 .469 19/64-9 .231 .083 B(.238)
1032L19-30 5008L19-30 10-32 M5.0 x 0.8 .296 .469 19/64-9 .231 .083 B(.238)
25020L24-32 6010L24-32 250-20 M6.0 x 1.0 .375 .500 3/8-9 .310 .083 5/16
31218L30-32 80125L30-32 312-18 M8.0 x 1.25 .469 .500 15/32-9 .373 .083 3/8
37516L36-60 10015L36-60 375-16 M10.0 x 1.5 .562 .938 9/16-9 .464 .125 15/32

Recommended starting hole sizes: Tests should be conducted to determine the appropriate hole sizes for your specific application and base material.

Installation Methods/Tools

 

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