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NSN 5305-01-339-0221

High Torque Screw

About this product

Between 2.520 inches and 2.567 inches fastener length, flat countersunk head style, between 1.076 inches and 1.145 inches head diameter, grip diameter: between 0.5605 inches and 0.5615 inches .

Manufacturer part number SFHM26-9-29 for national stock number 5305013390221.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-339-0221.

  • MPN or Model

    SFHM26-9-29

  • Schedule B
    8105.90.0000 (Cobalt, wrought, and articles thereof)
  • NMF (National Motor Freight)
    096640 - Screws, Iron Or Steel
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.770 inches
  • Fastener Length
    Between 2.520 inches and 2.567 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 1.076 inches and 1.145 inches
  • Grip Diameter
    Between 0.5605 inches and 0.5615 inches
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.562 inches
  • Grip Length
    Between 1.802 inches and 1.822 inches
  • Thready Qty Per Inch (tpi)
    18
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Cobalt comp mp-35-n
  • Material Specification
    Ams 5842 assn standard single material response
  • Thread Series Designator
    Unjf
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Close Tolerance Screw

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (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 designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Mechanic Bill explains High Torque Screw

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NSN 5305013390221

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
SFHM26-9-29 Sps Technologies, Llc
SFHM26-9-29 Ssp Construction Equipment Inc
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