Trisert® Slotted Coarse Threaded Series


Item # 3506JLS14-18


  • Wider spaced external threads reduce installation torque
  • Especially efficient for brittle or weak plastics
  • Easy installation with a slotted driver or an ordinary screw driver


TRISERT Slotted Coarse Threaded Inserts are internally and externally threaded metal inserts with a slot on one end. The inserts tap their own threads as they are (turned) into drilled or cored holes. The wider spaced external threads reduce installation torque and provide a stronger hold. Slotted inserts provide an alternative insertion method to the Yardley Trisert Inserts as the slotted inserts can be easily installed with a screw driver or a Yardley inserting tool.


Thread Type



Metric Thread Size (A)

Outside Diameter (+.000 -.003) (B)

Outside Diameter (B)

Outside Diameter Tolerance (B)

Length (C)

Length Tolerance (C)

Outside Thread (D)

(+/- .005) (E)

(+/- .010) (F)

(+.010 -.000) (G)

(+/- .005) (H)

(+/- .002) (I)

Base Materials

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Installation Methods

Starting Hole Size Inches

Safety Notes

WARNING: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm. Do not use in connection with drinking water. Wash hands after handling.

WARNING: Cancer and Reproductive Harm -