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NAS1581F4T6 Close Tolerance Screw

Product Series: NAS
ECCN: EAR99
Schedule: 7318.15.9000

Price per Unit $1.40

Units per Pack 25

Price per Pack $35.00

Manufacturer certifications are shipped with your order FREE of charge

Unit of Measure: EA

Quantity will be increased in increments of 25

Total Unit Quantity:

Total Packs 1

Total Price $35.00

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Head Style

Flat countersunk

Material

Steel comp e4340 or steel comp 4140 or steel comp 8740 or steel comp 8735 or steel comp 6150

Surface Treatment

Qq-p-416 ty2 cl2 federal specification single treatment response

Thread Class

Countersink Angle: 100.0 degrees
Fastener Length: Between 0.763 inches and 0.793 inches
Grip Diameter: Between 0.2485 inches and 0.2495 inches
Grip Length: Between 0.365 inches and 0.385 inches
Hardness Rating: 36.0 rockwell c and 40.0 rockwell c
Internal Drive Style: Offset cruciform (torque set)
Min. Tensile Strength (psi): 160000 pounds per square inch
Specification Data: 80205-nas1581 professional/industrial association standard
Surface Finish: 32.0 microinches grip
Thread Diameter: 0.250 inches
Thread Direction: Right-hand
Thread Length: Between 0.378 inches and 0.428 inches
Thread Qty Per Inch (tpi): 28
Thread Series Designator: Unjf (fine thread with external controlled root radius)
Head Diameter: Between 0.350 inches and 0.399 inches