Military Standard Machine Screw
- 100° Flat Head
- Cruciform Recessed
- Fine Threads
- Thread Class: 3A
- Material: Steel
- Major Diameter: 0.25 in.
- Threads Per Inch (TPI): 18
- Tensile Strength: 4250 lbf
- Length: 0.78125 in.
- Grip: 0.25 in.
- Driver: Philips
- Industry Standard Specification: AN509