[{"id":189143548040,"handle":"aircraft-hardware","title":"Aircraft Hardware","updated_at":"2023-09-26T10:35:17-04:00","body_html":"","published_at":"2020-12-14T14:57:24-05:00","sort_order":"best-selling","template_suffix":"","disjunctive":true,"rules":[{"column":"type","relation":"equals","condition":"Misc Aircraft Hardware"},{"column":"type","relation":"equals","condition":"Aircraft Washers"},{"column":"type","relation":"equals","condition":"AN Series Aircraft Bolts"},{"column":"type","relation":"equals","condition":"Aircraft Pan Head Machine Screws"},{"column":"type","relation":"equals","condition":"Aircraft Truss Head Machine Screws"},{"column":"type","relation":"equals","condition":"Drilled Fillister Head Aircraft Machine Screws"}],"published_scope":"global"},{"id":189145677960,"handle":"coupon-eligible","title":"Coupon Eligible","updated_at":"2023-09-28T23:42:38-04:00","body_html":"","published_at":"2020-12-14T21:11:58-05:00","sort_order":"best-selling","template_suffix":"","disjunctive":false,"rules":[{"column":"vendor","relation":"not_equals","condition":"Lightspeed Aviation"}],"published_scope":"global"},{"id":173186416776,"handle":"misc-aircraft-hardware","title":"Misc Aircraft Hardware","updated_at":"2023-09-26T10:35:17-04:00","body_html":"","published_at":"2020-03-06T14:44:23-05:00","sort_order":"best-selling","template_suffix":"","disjunctive":false,"rules":[{"column":"type","relation":"equals","condition":"Misc Aircraft Hardware"}],"published_scope":"global"},{"id":174252851336,"handle":"misc-hardware","title":"Misc. Hardware","updated_at":"2023-09-18T10:45:44-04:00","body_html":null,"published_at":"2020-03-11T14:55:15-04:00","sort_order":"best-selling","template_suffix":null,"disjunctive":true,"rules":[{"column":"vendor","relation":"equals","condition":"Misc. Hardware"}],"published_scope":"web"}]
["Default"]
Skip to content
Military Standard Aircraft Drive Screw | MS21318-21
Misc. Hardware
MS21318-21
We currently have 147 available.
Sale price
$0.59
Regular price
$0.74
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
- choosing a selection results in a full page refresh