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NAS1204-1
0.378 Inch Length NAS1204 100 Degree Countersunk Head Close Tolerance Bolt
Description
0.378 Inch Length NAS1204 100 Degree Countersunk Head Close Tolerance Bolt
Specifications
| Countersink Angle | 100.0 degrees |
|---|---|
| Country of Origin | USA |
| Distance From Head Largest Bearing Surface To Shank Hole Center | 0.262 inches first hole |
| Fastener Length | Between 0.363 inches and 0.393 inches |
| Grip | 0.062 in |
| Grip Diameter | Between 0.2485 inches and 0.2495 inches |
| Grip Length | Between 0.052 inches and 0.072 inches |
| Hardness Rating | 36.0 rockwell c and 40.0 rockwell c |
| Head Angle | 100 º |
| Head Diameter | Between 0.497 inches and 0.507 inches |
| Head Style | Flat countersunk |
| Head Type | Countersunk |
| Industry Standards/Certification | NAS1204 |
| Internal Drive Style | Cross recess type 1 |
| Length | 0.378 in |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Shank Unthreaded Hole Diameter | 0.076 inches first hole |
| Surface Treatment | Cadmium and chromate |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.291 inches and 0.341 inches |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 0.2500-28 |
| Weight | .005 lb |
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1204-1. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error