1-321-802-5889

NSN 5305-01-598-8953

Tap Bolt

About this product

2.5 inches fastener length, hexagon head style, between 0.150 inches and 0.188 inches head height, width between flats: between 0.425 inches and 0.438 inches .

Manufacturer part number B1821BH025C250D for national stock number 5305015988953.

Datasheet

  • Product description

    Hexagon Head Cap Screw NSN 5305-01-598-8953.

  • MPN or Model

    B1821BH025C250D

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • Thread Class
    2a
  • Thread Direction
    Right-hand
  • Thread Length
    0.7 inches
  • Fastener Length
    2.5 inches
  • Head Style
    Hexagon
  • Head Height
    Between 0.150 inches and 0.188 inches
  • Width Between Flats
    Between 0.425 inches and 0.438 inches
  • Hole Diameter
    0.062 inches
  • Thread Diameter
    0.2 inches
  • Hole Quantity
    1
  • Hole Type
    Drilled
  • Thready Qty Per Inch (tpi)
    20
  • Material
    Steel fastener
  • Material Specification
    Astm a354 assn standard single material response fastener
  • Surface Treatment
    Zinc fastener and chromate fastener
  • Thread Series Designator
    Unc
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

Pricing and Availability

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
B1821BH025C250D American National Standards
Stock Check
Availability for this item was last checked on 09/11/20. The quantities and conditions available at the time were:
  • NE: 106