These rack screws have a 12-24 thread and are 3/4 inches in length. They are typically used along with 12-24 cage nuts to mount equipment onto racks
Panduit 12-24 x 0.5 Rack Screw, 100 each (25 Packs of
RackGold 12-24 Rack Screws 25 Pack - USA Made
12 24 Rack Screws 100Pack : Musical Instruments
Rackit, #12-24 Mounting Screws, Black
12-24 Rack Screws, Made In USA
Rack Screw, 12-24 Thread, 3/4 inch Length - Zinc
Quantity: 100 - 12-24 #3 Bulk Pack Rack Screws 0.75 in length Color/Finish Black Oxide with Wax Finish, Material(s) Hardened Steel #3 Phillips Truss
RackGold® 12-24#3 Phillips Rack Screws 100 Pack - USA Made
Panduit 12-24 x 0.5 Rack Screw, 100 each (25 Packs of
12 24 Rack Screws 100Pack : Musical Instruments