Military Standard Machine Screw
- Undrilled Head
- Coarse Threads
- UNC Class 2A
- Slotted Recess
- Fillister Head
- Material: Corrosion Resistant Steel
- Finish: Passivate
- Major Diameter: 0.138 in.
- Threads Per Inch (TPI): 32
- Length: 1 in.
- Industry Standard Specification: AN500