Part Number NAS1581K6T20 Close Tolerance Screw
SKU: 5305010570354NAS1581K6T20 Close Tolerance Screw Datasheet
National aerospace standards part number NAS1581K6T20
Thread Direction:
Right-hand
Thread Length:
Between 0.569 inches and 0.619 inches
Fastener Length:
Between 1.829 inches and 1.859 inches
Head Style:
Flat countersunk
Head Diameter:
Between 0.515 inches and 0.566 inches
Grip Diameter:
Between 0.3740 inches and 0.3745 inches
Internal Drive Style:
Offset cruciform (torque set)
Thread Diameter:
0.375 inches
Grip Length:
Between 1.240 inches and 1.260 inches
Thready Qty Per Inch (tpi):
24
Min. Tensile Strength (psi):
160000 pounds per square inch
Countersink Angle:
100.0 degrees
Surface Finish:
32.0 microinches grip
Surface Finish:
32.0 microinches threads
Material Specification:
NAS621 assn standard single material response
Specification Data:
80205-NAS1581 professional/industrial association standard
Manufacturer Cage:
80205
Trade Information:
- Schedule B: 8109900000
- SITC: 69987
- End Use: Finished metal shapes
- NAICS: 331491
- USDA: 1
Zirconium and articles thereof nesoi
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