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Machine Bolt - AN4-15

Machine Bolt - AN4-15

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Aeronautical Standard - Machine Bolt - AN4-15
Standard Part

Description: Machine Bolt
Part Number: AN4-15
Alternate Part Numbers: 400-110, 2018279

 

Product Overview:

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. the threaded and unthreaded portions are both of one diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. for items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

 

Item Specification:

Thread Class

     

3A

Thread Direction

Right-hand

Thread Length

0.468 inches minimum

Fastener Length

1.656 inches nominal

Head Style

Hexagon

Head Height

0.140 inches minimum and 0.172 inches maximum

Width Between Flats

0.428 inches minimum and 0.440 inches maximum

Shank Unthreaded Hole Diameter

0.076 inches nominal first hole

Nominal Thread Diameter

0.250 inches

Grip Length

1.188 inches nominal

Features Provided

Finished head

Thread Quantity per Inch

28

Minimum Tensile Strength

125000 pounds per square inch

Hardness Rating

26.0 rockwell C minimum overall and 32.0 rockwell C maximum overall

Distance from Head Largest Bearing Surface to Shank Hole Center

1.500 inches nominal first hole

Material

Steel comp 4037 overall or steel comp 4130 overall or steel comp 8630 overall or steel comp 8735 overall or steel comp 8740 overall or steel comp 4140 overall

Material Document and Classification

MIL-B-6812 mil spec all material responses overall

Surface Treatment

Cadmium overall and chromate overall

Surface Treatment Document and Classification

QQ-P-416, ty 2, class 3 fed spec all treatment responses overall

Thread Series Designator

UNF

 

 

Fits In:

  1. ·         Embraer Phenom 300
  2. ·         Textron Aviation Beechcraft King Air 100 - all variants
  3. ·         Textron Aviation Beechcraft King Air 200 - all variants
  4. ·         Textron Aviation Cessna 500 Citation I-ISP
  5. ·         Textron Aviation Cessna 510 Citation Mustang
  6. ·         Textron Aviation Cessna 525 Citation Citationjet
  7. ·         Textron Aviation Cessna 560 Citation V-Ultra-Encore-Excel-XLS
  8. ·         Textron Aviation Cessna 650 Citation III-IV-VI-VII
  9. ·         Textron Aviation Hawker 800
  10. ·         Textron Aviation Hawker 800XP-850XP