- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.313 inches minimum and 0.363 inches maximum
- Fastener Length
- 0.823 inches minimum and 0.853 inches maximum
- Head Style
- Flat countersunk
- Head Diameter
- 0.297 inches minimum and 0.302 inches maximum
- Grip Diameter
- 0.1885 inches minimum and 0.1895 inches maximum
- Internal Drive Style
- Cross recess type 1
- Nominal Thread Diameter
- 0.190 inches
- Grip Length
- 0.490 inches minimum and 0.510 inches maximum
- Thread Quantity per Inch
- 32
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hardness Rating
- 36.0 rockwell C minimum overall and 40.0 rockwell C maximum overall
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Material
- Steel comp 4130 overall
- Material Document and Classification
- MIL-S-6758, cond D4 mil spec single material response overall
- Surface Treatment
- Cadmium overall
- Thread Series Designator
- UNF
Catalogue data is compiled from public DLA/FLIS sources and is provided for
identification. Availability, condition and certification are confirmed on
quotation. OmniSynk Distribution Services is a stocking distributor.