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NSN 5305-01-558-7943

Tap Bolt

About this product

Sae j429 grade 8 zinc-plated alloy steel hex head cap screw.

Manufacturer part number 91257A552 for national stock number 5305015587943.

Datasheet

  • Product description

    Hexagon Head Cap Screw NSN 5305-01-558-7943.

  • MPN or Model

    91257A552

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    096640 - Screws, Iron Or Steel
  • Thread Class
    2a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.750 inches and 1.000 inches
  • Fastener Length
    2.500 inches
  • Head Style
    Hexagon
  • Head Height
    0.156 inches
  • Width Between Flats
    0.438 inches
  • End Application
    Apache attack helicopter
  • Thread Diameter
    0.250 inches
  • Thready Qty Per Inch (tpi)
    20
  • Min. Tensile Strength (psi)
    150000 pounds per square inch
  • Hardness Rating
    33.0 rockwell c and 39.0 rockwell c
  • Part Name Assigned By Controlling Agency
    Hexhead cap screw
  • Color
    Yellow
  • Material
    Steel comp 429
  • Surface Treatment
    Dichromate zinc
  • Thread Series Designator
    Unc
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Hexagon Head Cap Screw

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. the threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. the thread length being the controlled dimension, the grip length is not specified. a locking feature may be incorporated in the design of the head or threads. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. excludes bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

Mechanic Bill explains Tap Bolt

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NSN 5305015587943

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
91257A552 Mcmaster-carr Supply Company
91257A552 Navy, United States Department Of
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