NAS1154-6R Machine Screw

Unit of Measure: EA

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Countersink Angle
Between 99.0 degrees and 101.0 degrees
Fastener Length
Between 0.676 inches and 0.706 inches
Grip Diameter
Between 0.2485 inches and 0.2495 inches
Grip Length
Between 0.365 inches and 0.385 inches
Internal Drive Style
Torque-set ribbed
Material Specification
Mil-s-5626 military specification 1st material response or mil-s-8844 military specification 2nd material response or mil-s-6049 military specification 3rd material response
Min. Tensile Strength (psi)
160000 pounds per square inch
Specification Data
80205-nas1154 professional/industrial association standard
Thread Diameter
0.250 inches
Thread Direction
Right-hand
Thread Length
Between 0.291 inches and 0.341 inches
Thread Qty Per Inch (tpi)
28
Thread Series Designator
Unjf (fine thread with external controlled root radius)
Head Diameter
Between 0.449 inches and 0.507 inches