Part Number NAS1581K7BT21 Close Tolerance Screw
SKU: 5305014077170NAS1581K7BT21 Close Tolerance Screw Datasheet
National aerospace standards part number NAS1581K7BT21
Thread Direction:
Right-hand
Thread Length:
0.675 inches
Fastener Length:
Between 1.972 inches and 2.002 inches
Head Style:
Flat countersunk
Head Diameter:
Between 0.604 inches and 0.674 inches
Grip Diameter:
Between 0.4365 inches and 0.4370 inches
Internal Drive Style:
Offset cruciform (torque set)
Thread Diameter:
0.437 inches
Grip Length:
Between 1.302 inches and 1.322 inches
Thready Qty Per Inch (tpi):
20
Min. Tensile Strength (psi):
160000 pounds per square inch
Countersink Angle:
Between 99.0 degrees and 101.0 degrees
Material Specification:
Ams 4928 assn standard single material response or ams 4967 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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