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SC4-4

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Description

Fastener Length: 3/8"

Specifications

Countersink Angle 120.0 degrees
Expansion Device Plain stem-type t
Fastener Length 0.373 inches minimum and 0.403 inches maximum
Grip Length 0.188 inches minimum and 0.250 inches maximum
Head Major Diameter 0.243 inches maximum
Head Style Flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer)
Material Steel
Material Specification 66 fed std all material responses body, 66 fed std all material responses mandrel
Shank Diameter 0.123 inches minimum and 0.128 inches maximum
Shank Style Self-plugging
Surface Treatment Zinc or chromate or phosphate
Surface Treatment Specification Qq-z-325 ty 2 cl 3 fed spec 1st treatment response body or qq-p-416 fed spec 2nd treatment response body or mil-p-16232 ty z cl 2 mil spec 3rd treatment response body or mil-p-16232 ty z cl 4 mil spec 3rd treatment response body, Qq-z-325 ty 2 cl 3 fed spec 1st treatment response mandrel or qq-p-416 fed spec 2nd treatment response mandrel or mil-p-16232 ty z cl 2 mil spec 3rd treatment response mandrel or mil-p-16232 ty z cl 4 mil spec 3rd treatment response mandrel

Cross-reference

Similar parts

Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.

  • AK44BS Other 13/32 in · Flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) · Aluminum

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Catalog data updated 2026-07-05. Report a data error