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NSN 5306-01-136-7441

Close Tolerance Hex Head Bolt

About this product

Between 2.431 inches and 2.451 inches fastener length, spline drive shear head head style, 0.164 inches head height, width between flats: between 0.448 inches and 0.455 inches .

Manufacturer part number ST3M744-4D34 for national stock number 5306011367441.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-136-7441.

  • MPN or Model

    ST3M744-4D34

  • 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 0.296 inches and 0.336 inches
  • Fastener Length
    Between 2.431 inches and 2.451 inches
  • Head Style
    Spline drive shear head
  • Head Height
    0.164 inches
  • Width Between Flats
    Between 0.448 inches and 0.455 inches
  • Grip Diameter
    Between 0.2490 inches and 0.2495 inches
  • Shank Unthreaded Hole Diameter
    0.076 inches first hole and 0.081 inches first hole
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 2.115 inches and 2.135 inches
  • Thready Qty Per Inch (tpi)
    28
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    2.313 inches first hole and 2.343 inches first hole
  • Material
    Steel comp xm-13
  • Material Specification
    Ams 5629 assn standard single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-35 federal specification single treatment response
  • Thread Series Designator
    Unjf
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Close Tolerance Bolt

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

Mechanic Bill explains Close Tolerance Hex Head Bolt

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
ST3M744-4D34 Boeing Company, The
ST3M744-4D34 Arconic Global Fasteners & Rings,
VS3174-4D34 Arconic Global Fasteners & Rings,
ST3M744-4D34 Heartland Precision Fasteners, Inc.
ST3M744-4D34 Fastener Innovation Technology, Inc.
VCG0001-4D34 Valley-todeco, Inc.
AIC687-4D34 Sps Technologies, Llc
PBF1265-4D34 Sps Technologies, Llc
122895-4D34 Sps Technologies, Llc
122895-4D34 Sps Technologies Inc
S406-4D34 Huck Intl Inc
ST3M744-4D34 Alcoa Global Fasteners, Inc.
S406-4D34 Huck International, Inc.
VS3174-4D34 Alcoa Global Fasteners, Inc.
MB154-4D34 Hi-shear Corporation
10115957 Nimikkeistokeskus Ncb Finland
GS1015-4D34 B & B Specialties Inc.
Stock Check
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