Aeronautical Standards Group - BOLT - AN5-35
Genuine OEM Part
Description: BOLT, MACHINE BOLT HEX HEAD
Part number: AN5-35
Industry Standard Specification: AIA/NAS NASM3-20
AN5-35 Airframe Bolt, Drilled - Length: 3-23/32", Grip: 3-3/16", Thread: 5/16-24, Cadmium Plated Steel, Drilled Shank
Hexagonal head aircraft bolts
are made of high-strength type 4037 or 8740 alloy steel (type 8740 is most commonly used). The bolts are centerless ground and threaded after heat treatment. Minimum tensile strength 125,000 PSI. Cadmium plated per specification QQ-P-416A, Type II, Class 3. Available with shank drilled for cotter pin or undrilled for stop nut application, and with or without drilled head for safety wire.
AN5-35 TECHNICAL FEATURES AND SPECIFICATIONS
| Thread Class | 3A | |
| Thread Direction | Right-hand | |
| Thread Length | 0.531 inches minimum | |
| Fastener Length | 3.719 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 | 3.188 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 | 3.547 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, type 2, class 3 fed spec all treatment responses overall |
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