Military Standard Aircraft Drive Screw | MS21318-21

Misc. Hardware

MS21318-21

We currently have 147 available.

Sale price $0.59 Regular price $0.74

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Length: 1/4", diameter: 0.114", round head, U drive style, cadmium plated carbon steel drive screw.

  • NSN: 5305-00-253-5615
  • Surface Treatment: Cadmium and chromate
  • Pilot Length: 0.047"
  • Pilot Diameter: Between 0.092" and 0.096"
  • Nonmachine Thread Style: Drive screw (type u)
  • Nonmachine Thread Diameter: 0.114 inches
  • Material: Steel
  • Head Style: Round
  • Head Height: Between 0.075" and 0.08"
  • Head Diameter: Between 0.193" and 0.21"
  • Fastener Length: 0.25"
  • Features Provided: Casehardened
  • Surface Treatment Specification: QQ-P-416 type 2 cl 3 federal specification all treatment responses