Part Number NAS1580A4T20Y Shoulder Screw

SKU: 5305012762233

NAS1580A4T20Y Shoulder Screw Datasheet

National aerospace standards part number NAS1580A4T20Y
Thread Direction:
Right-hand
Thread Length:
Between 0.378 inches and 0.428 inches
Fastener Length:
Between 1.638 inches and 1.668 inches
Head Style:
Flat countersunk
Head Diameter:
Between 0.464 inches and 0.507 inches
Shoulder Diameter:
0.2797 inches first shoulder and 0.2807 inches first shoulder
Shoulder Length:
1.240 inches first shoulder and 1.260 inches first shoulder
Internal Drive Style:
Offset cruciform (torque set)
Thread Diameter:
0.250 inches
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
160000 pounds per square inch
Hardness Rating:
36.0 rockwell c and 40.0 rockwell c
Countersink Angle:
Between 99.0 degrees and 101.0 degrees
Shoulder Shape:
Round first shoulder
Material Specification:
MIL-S-5626 military specification 1ST material response or MIL-S-5000 military specification 2ND material response or MIL-S-6049 military specification 3RD material response
Surface Treatment Specification:
QQ-P-416 TY2 CL2 federal specification single treatment response
Specification Data:
80205-NAS1580 professional/industrial association standard
Manufacturer Cage:
80205
Trade Information:
  • Schedule B: 7318152000
  • SITC: 69421
  • End Use: Iron and steel products, other
  • NAICS: 332722
  • USDA: 1

Bolts and bolts and their nuts or washers exported in the same shipment

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