- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.742 inches minimum and 0.792 inches maximum
- Fastener Length
- 4.564 inches minimum and 4.594 inches maximum
- Head Style
- Spline extended washer
- Head Height
- 0.440 inches minimum and 0.460 inches maximum
- Extended Washer Diameter
- 0.922 inches minimum and 0.932 inches maximum
- Extended Washer Thickness
- 0.062 inches minimum and 0.082 inches maximum
- Grip Diameter
- 0.498 inches minimum and 0.499 inches maximum
- Head Minor Diameter
- 0.547 inches minimum and 0.562 inches maximum
- Nominal Thread Diameter
- 0.500 inches
- Grip Length
- 3.802 inches minimum and 3.822 inches maximum
- Thread Quantity per Inch
- 20
- Minimum Tensile Strength
- 220000 pounds per square inch
- Special Features
- Longitudinal hole 0.350 in. min and 0.390 in. max. diameter, 0.161 in. min. deep located in center of head
- Material
- Steel comp XM-13 overall
- Material Document and Classification
- Ams 5629 assn std single material response overall
- Surface Treatment
- Aluminum overall and chromate overall
- Surface Treatment Document and Classification
- MIL-C-83488, TY2, CL3 mil 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.