New Tiger Technology Black Phillips Pan Head Tapping Screws, #4 x 3/8" for Sheet Metal, Wood, Electronics, Etc.; Part Number 128058 or 213-E128058. Each bid quantity is for a Lot of Two Hundred (200) Screws. You may bid / buy any number of lots, up to the total quantity available above.
These were purchased at an electronics liquidation earlier this year, and they were brand new in the original factory boxes. We repackaged them in heavy Ziplok bags.
According to the calipers:
Overall length: .445" / 11.31 mm
Length (underside of head to tip): .360" / 9.15 mm
Head diameter: .213" / 5.40 mm
Threads: #4 x 3/8" (diameter x grip length)