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NSN 5305-01-137-7042

Button Head Socket Screw

About this product

Three slots 0.040 in. Wide by 0.029 in. Deep along the longitudinal axis and 120 degrees apart,thread to be double lead.

Manufacturer part number BACF34L4BT2HS for national stock number 5305011377042.

Datasheet

  • Product description

    Socket Head Cap Screw NSN 5305-01-137-7042.

  • MPN or Model

    BACF34L4BT2HS

  • 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
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.477 inches and 0.637 inches
  • Fastener Length
    Between 0.767 inches and 0.787 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.360 inches and 0.404 inches
  • Internal Drive Style
    Hexagon
  • Thread Diameter
    0.250 inches
  • Width Across Flats
    Between 0.1562 inches and 0.1587 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Surface Finish
    32.0 microinches grip
  • Material
    Steel comp 8740 or steel comp 4140
  • Material Specification
    Mil-s-6049 military specification 1st material response or mil-s-5626 military specification 2nd material response
  • Surface Treatment
    Tin
  • Surface Treatment Specification
    Mil-t-10727 ty1 military specification single treatment response
  • Thread Series Designator
    Unf
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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 5305011377042

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
BACF34L4BT2HS The Boeing Company
CA21150-4-2HS Arconic Global Fasteners & Rings,
BACF34L4BT2HS Unirex, Inc.
BACF34L4BT2HS Arconic Global Fasteners & Rings,
Stock Check
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