Check the listing for details. M2 x 3mm(L) x 3.5mm(OD) Brass Knurled Threaded Insert Embedment Nuts, 50 Pcs. Condition: New. Listed at 14.27 USD. - These Knurl Thread Insert Nut can be widely used on the injection moulding for tightly fixing.- Can be installed by ultrasonic or heat into blind hole, or molded in during injection.- No need to counterbore or countersink the boss hole since the insert has guide pilot.- Made of brass material, good thermal conductivity and heat resistance. Specification:Material: BrassThread Size: M2x0.4mmTotal Length: 3mm / 0.12"Outer Diameter（+0.5/-0mm）: 3.5mm / 0.138" Package Content: 50(+/-2%) x Knurl Thread Inserts Nuts.