- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.425 inches nominal
- Fastener Length
- 0.970 inches minimum and 1.030 inches maximum
- Head Style
- Hexagon
- Head Height
- 0.125 inches minimum and 0.140 inches maximum
- Width Between Flats
- 0.429 inches minimum and 0.439 inches maximum
- Grip Diameter
- 0.2485 inches minimum and 0.2495 inches maximum
- Shank Unthreaded Hole Diameter
- 0.076 inches minimum first hole and 0.086 inches maximum first hole
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 1.302 inches minimum and 1.322 inches maximum
- Thread Quantity per Inch
- 28
- Distance from Head Largest Bearing Surface to Shank Hole Center
- 0.284 inches minimum first hole and 0.334 inches maximum first hole
- Material
- Steel overall
- Material Document and Classification
- MIL-S-5000, 4340 mil spec single material response overall or MIL-S-6049, 8740 mil spec single material response overall or AMS6322 assn std single material response overall
- Surface Treatment
- Cadmium overall
- Surface Treatment Document and Classification
- QQ-P-416, TY2, CL2 mil spec single treatment response overall
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.