Machine Screw 2-56 x 1/2 inch p-ph-s

This is the small phillips panhead screw used to secure most
playfield microswitches. The screw has a captive internal tooth
lockwasher attached to the head.

Commonly used on many 1990's Bally and Williams games.

Reference:

• Used with 01-8719 microswitch bracket Machine screw with 2-56
  thread and 1/2" long with phillips pan head and integrated
  internal tooth lockwasher.
  

Basic diameters and threads of Standard SAE numeric system small
machine screws are shown below.

The diameters of machine screws are indicated with the number of
threads per inch count.

Reference:

• 4002-01105-08