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NAS6205-12D
Close Tolerance Bolt-Drilled Shank
Description
Close Tolerance Bolt-Drilled Shank
Specifications
| Alternate Part Number | NAS1105-12D |
|---|---|
| Country of Origin | USA |
| Distance From Head Largest Bearing Surface To Shank Hole Center | 0.996 inches minimum first hole and 1.016 inches maximum first hole |
| Drilling | Drilled Head |
| Fastener Length | 1.173 inches minimum and 1.203 inches maximum |
| Grip | 0.750 in |
| Grip Diameter | 0.3110 inches minimum and 0.3120 inches maximum |
| Grip Length | 0.740 inches minimum and 0.760 inches maximum |
| Grip Tolerance | ±0.010 in |
| Hardness Rating | 36.0 rockwell c minimum and 40.0 rockwell c maximum |
| Head Height | 0.156 inches minimum and 0.171 inches maximum |
| Head Style | Dished hexagon |
| Head Type | Hexagon |
| Industry Standards/Certification | NAS6205 |
| Length | 1 13/64, 1.188 in |
| Material | Steel |
| Material Specification | Mil-s-5000,4340 or e4340 mil spec single material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Shank Unthreaded Hole Diameter | 0.076 inches minimum first hole and 0.086 inches maximum first hole |
| Specification Data | 80205-nas6205 professional/industrial association standard |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Qq-p-416,ty 2,cl 2 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | 0.438 |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNJF |
| Thread Size | 0.3125-24, 1/4 |
| Weight | 0.003 lb |
| Width Between Flats | 0.492 inches minimum and 0.502 inches maximum |
Cross-reference
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Catalog data updated 2026-07-05. Report a data error