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Close Tolerance Bolt

Model / MPN: BM3200-10A026D | NSN: 5306-01-249-2793
ITAR Registered seal

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 major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the shank diameter, but not below the major diameter for applicable class of fit, as shown in the screw thread standards, federal standard 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) tensile strength, see bolt, shear. For items fabricated from material having less than 160, 000 pounds per square inch (1100 megapascals) tensile strength and not having a close tolerance, see bolt, machine.

Product Details
NATO Stock Number
5306-01-249-2793
Sold in multiples of
EA
DEMIL
NO
Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.606 inches and 0.673 inches
Fastener Length
Between 2.241 inches and 2.288 inches
Head Style
Double hexagon
Head Height
Between 0.340 inches and 0.360 inches
Width Between Flats
Between 0.928 inches and 0.940 inches
Grip Diameter
Between 0.623 inches and 0.624 inches
Shank Unthreaded Hole Diameter
0.131 inches first hole and 0.151 inches first hole
Thread Diameter
0.625 inches
Grip Length
Between 1.615 inches and 1.635 inches
Thready Qty Per Inch (tpi)
18
Min. Tensile Strength (psi)
132000 pounds per square inch
Distance From Head Largest Bearing Surface To Shank Hole Center
2.122 inches first hole and 2.154 inches first hole
Surface Finish
32.0 microinches bearing surface of head
Surface Finish
32.0 microinches grip
Material
Steel comp h11
Material Specification
Stsbs000 cagec 98897 mfr ref single material response
Surface Treatment
Nickel and cadmium and chromate
Surface Treatment Specification
Stsbs0000 cagec98897 mfr ref single treatment response
Thread Series Designator
Unjf

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BM3200-10A026D Cross Reference
  • STSBG000A10D026
  • VAL23611-10DS026
  • AIC2263A10D026
  • PBF1041A10D026
  • STSBG000A10D026
  • 11797A10D026
  • STSBG000A10D026
  • STSBG000A10D026
  • BM3200-10A026D
  • 11797A10026