- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.469 inches nominal
- Fastener Length
- 0.376 inches minimum and 0.396 inches maximum
- Head Style
- Flat countersunk
- Head Diameter
- 0.578 inches minimum and 0.634 inches maximum
- Hole Diameter
- 0.076 inches minimum and 0.086 inches maximum
- Grip Diameter
- 0.3110 inches minimum and 0.3120 inches maximum
- Nominal Thread Diameter
- 0.3125 inches
- Grip Length
- 0.6775 inches minimum and 0.6975 inches maximum
- Hole Quantity
- 1
- Hole Type
- Drilled
- Thread Quantity per Inch
- 28
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hole Configuration Style
- Round
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Part Name Assigned BY Controlling Agency
- Bolt, 100 deg flush head 160, 000 psi uts
- Material
- Steel comp 4140 overall or steel comp 4340 overall or steel comp E4340 overall or steel comp 8740 overall
- Material Document and Classification
- MIL-S-5626 mil spec single material response overall or AMS6415 assn std 2ND material response overall or MIL-S-5000 mil spec 3RD material response overall or MIL-S-60494 mil spec 4TH material response overall
- Surface Treatment
- Cadmium overall
- Surface Treatment Document and Classification
- QQ-P-416, ty ii, cl 2 fed spec single treatment response overall
- Thread Series Designator
- UNJF
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.