Aeronautical Standards Group - BOLT - AN5-24
Genuine OEM Part
Description: BOLT, MACHINE BOLT
Part number: AN5-24
Industry Standard Specification: AIA/NAS NASM3-20
AN5-24 FEATURES AND SPECIFICATIONS
| Thread Class | 3A | |
| Thread Direction | Right-hand | |
| Thread Length | 0.532 inches minimum | |
| Fastener Length | 2.594 inches nominal | |
| Head Style | Hexagon | |
| Head Height | 0.172 inches minimum and 0.204 inches maximum | |
| Width Between Flats | 0.490 inches minimum and 0.502 inches maximum | |
| Shank Unthreaded Hole Diameter | 0.076 inches nominal first hole | |
| Nominal Thread Diameter | 0.312 inches | |
| Grip Length | 2.062 inches nominal | |
| Features Provided | Finished head | |
| Thread Quantity per Inch | 24 | |
| Minimum Tensile Strength | 125000 pounds per square inch | |
| Hardness Rating | 26.0 rockwell C minimum overall and 32.0 rockwell C maximum overall | |
| Distance from Head Largest Bearing Surface to Shank Hole Center | 2.421 inches nominal first hole | |
| Material | Steel comp 4037 overall or steel comp 4130 overall or steel comp 8630 overall or steel comp 8735 overall or steel comp 8740 overall or steel comp 4140 overall | |
| Material Document and Classification | MIL-B-6812 mil spec all material responses overall | |
| Surface Treatment | Cadmium overall and chromate overall | |
| Surface Treatment Document and Classification | QQ-P-416 ty 2 cl 3 fed spec all treatment responses overall | |
| Thread Series Designator | UNF |
Military Standard Aircraft Machine Bolt
- Hexagon Head
- Undrilled Head
- Cotter Pin Hole
- Fine Threads
- UNF-3A
- Material: Steel
- Major Diameter: 0.3125 in.
- Thread Per Inch (TPI): 24
- Length: 2.594 in.
- Grip Length: 2.063 in.
- Industry Standard Specification: AIA/NAS NASM3-20
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