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NAS1801-4-6 Machine Screw

Product Series: NAS
ECCN: EAR99
Schedule: 7318.15.9000

Manufacturer certifications are shipped with your order FREE of charge

Unit of Measure: EA

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Head Style

Hexagon

Thread Class

Bearing Surface Of Head Surface Finish: 32.0 microinches
Fastener Length: Between 0.359 inches and 0.406 inches
Head Height: Between 0.046 inches and 0.056 inches
Internal Drive Style: Cross recess type 1
Min. Tensile Strength (psi): 160000 pounds per square inch
Screw Material: Steel comp e4340 or steel comp 8740
Screw Material Specification: Mil-s-5000 military specification 1st material response or mil-s-6049 military specification 2nd material response or ams6322 assn standard 2nd material response
Screw Surface Treatment: Cadmium and chromate
Screw Surface Treatment Specification: Qq-p-416 ty2 cl2 federal specification single treatment response
Specification Data: 80205-nas1801 professional/industrial association standard
Thread Diameter: 0.250 inches
Thread Direction: Right-hand
Thread Length: Between 0.295 inches and 0.374 inches
Thread Qty Per Inch (tpi): 28
Thread Series Designator: Unjf (fine thread with external controlled root radius)
Thread Surface Finish: 32.0 microinches
Width Between Flats: Between 0.367 inches and 0.376 inches