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MS24693BB4 - Aerospace Screw

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SCREW - MS24693BB4
Military Standard Part

Description:   SCREW
Part number:   MS24693BB
Industry Standard Certification:   AIA/NAS NASMS24693

Machine Screw - Black Brass, Length: 3/8", Thread: 4-40, 100°, Countersunk, Flat Head, Machine Screw

MS24693BB4   Features

Parameter   Characteristics
Thread Class:2A
Thread Direction:Right-hand
Thread Length:0.325 inches minimum and 0.375 inches maximum
Fastener Length:0.375 inches nominal
Head Style:Flat countersunk
Head Diameter:0.191 inches minimum and 0.225 inches maximum
Internal Drive Style:Cross recess type 1
Nominal Thread Diameter:0.112 inches
Thread Quantity per Inch:40
Minimum Tensile Strength:55000 pounds per square inch
Countersink Angle:99.0 degrees minimum and 101.0 degrees maximum
Screw Material:Copper alloy
Screw Material Document and Classification:QQ-B-626 fed spec single material response or QQ-W-321 fed spec single material response
Thread Series Designator:UNC


This part is used on the following aircraft:

  1. • Textron Aviation Cessna 560 Citation V-Ultra-Encore-Excel-XLS
  2. • Textron Aviation Cessna 650 Citation III-IV-VI-VII
  3. • Textron Aviation Cessna 525 Citation Citationjet



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