Home » NAS1581C4T11 Close Tolerance Screw

NAS1581C4T11 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
Iron
Surface Treatment
Qq-p-35 federal specification single treatment response
Thread Class
3a
Countersink Angle
Between 99.0 degrees and 101.0 degrees
Fastener Length
Between 1.076 inches and 1.106 inches
Grip Diameter
Between 0.2485 inches and 0.2495 inches
Grip Length
Between 0.678 inches and 0.698 inches
Internal Drive Style
Offset cruciform (torque set)
Material Specification
Ams 5737 assn standard single material response or ams 5732 assn standard single material response or ams 5737 assn standard single material response or ams 5853 assn standard single material response
Thread Diameter
0.250 inches
Thread Direction
Right-hand
Thread Length
0.403 inches
Thread Qty Per Inch (tpi)
28
Thread Series Designator
Unjf (fine thread with external controlled root radius)
Head Diameter
Between 0.3504 inches and 0.3988 inches