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NSN 5305-01-251-3445

Button Head Socket Screw

About this product

Verical knurls,color black.

Manufacturer part number 91251A537 for national stock number 5305012513445.

Datasheet

  • Product description

    Socket Head Cap Screw NSN 5305-01-251-3445.

  • MPN or Model

    91251A537

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    2a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.400 inches and 0.500 inches
  • Fastener Length
    0.500 inches
  • Head Style
    Flat chamfer
  • Head Diameter
    0.375 inches
  • Head Height
    Between 0.244 inches and 0.250 inches
  • Internal Drive Style
    Hexagon
  • Thread Diameter
    0.250 inches
  • Width Across Flats
    0.188 inches
  • Thready Qty Per Inch (tpi)
    20
  • Min. Tensile Strength (psi)
    180000 pounds per square inch
  • Hardness Rating
    39.0 rockwell c and 45.0 rockwell c
  • Material
    Steel comp 1013 or steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 1021 or steel comp 1022 or steel comp 1023 or steel comp 1524 or steel comp 1025 or steel comp 1026 or steel comp 1527 or steel comp 1029 or steel comp 1030 or steel comp 1033 or steel comp 1034 or steel comp 1035 or steel comp 1536 or steel comp 1037 or steel comp 1038 or steel comp 1039 or steel comp 1040 or steel comp 1541
  • Material Specification
    Sae grade 8 assn standard all material responses
  • Surface Treatment
    Oxide
  • Thread Series Designator
    Unc
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Socket Head Cap Screw

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Mechanic Bill explains Button Head Socket Screw

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NSN 5305012513445

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
91251A537 Mcmaster-carr Supply Company
91251A537 Mcmaster-carr Supply Company
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