New Torx Security / Tamper Resistant Screws, with the Annoying Little Post in the Center, Part Number Unknown, Threads M3-0.5 x 6MM .  Each bid quantity is for a Lot of Two Hundred (200) Pieces.  You may bid / buy any number of lots, up to the total quantity available above.

These were purchased at an industrial liquidation earlier this year, and they were brand new in unmarked bags.  We packaged them in heavy Ziplok bags for resale.

According to the calipers:

Overall length:  .305" / 7.76 mm

Length (underside of head to tip):  .228" / 5.78 mm

Head diameter:  .209" / 5.30 mm

Threads:  M3-0.5 x 6MM (diameter - threads x grip length)