Home » NAS1581F3R12 Close Tolerance Screw

NAS1581F3R12 Close Tolerance Screw

Product Series
NAS
ECCN
EAR99
Schedule
7318.15.9000
Unit of Measure: EA

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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 type 2 class 2 federal specification single treatment response
Thread Class
3a
Countersink Angle
Between 99.0 degrees and 101.0 degrees
Fastener Length
Between 1.098 inches and 1.128 inches
Grip Diameter
Between 0.1885 inches and 0.1895 inches
Grip Length
Between 0.740 inches and 0.760 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 threads
Thread Diameter
0.190 inches
Thread Direction
Right-hand
Thread Length
Between 0.338 inches and 0.388 inches
Thread Qty Per Inch (tpi)
32
Thread Series Designator
Unjf (fine thread with external controlled root radius)
Head Diameter
Between 0.2578 inches and 0.3047 inches