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NAS517-3-18 Machine Screw

Product Series: NAS
ECCN: EAR99
Schedule: 7318.15.2091

Unit of Measure: EA

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Head Style

Flat countersunk

Thread Class

Countersink Angle: Between 99.0 degrees and 101.0 degrees
Fastener Length: Between 1.516 inches and 1.561 inches
Hardness Rating: Between 36.0 rockwell c and 40.0 rockwell c
Internal Drive Style: Cross recess type 1
Min. Tensile Strength (psi): 160000 pounds per square inch
Screw Material: Steel comp 8630
Screw Material Specification: Mil-s-6050 military specification single material response or an-s-9 military standard single material response
Screw Surface Treatment: Cadmium and chromate
Screw Surface Treatment Specification: Qq-p-416 type 2 cl 2 federal specification single treatment response
Thread Diameter: 0.190 inches
Thread Direction: Right-hand
Thread Length: Between 0.314 inches and 0.451 inches
Thread Qty Per Inch (tpi): 32
Thread Series Designator: Unjf (fine thread with external controlled root radius)
Head Diameter: Between 0.337 inches and 0.387 inches