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EMANON PART NO.
AN565AC428H4
AN565AC428H4 is a screw in steel comp 303 or steel comp 303se, passivate finish, 0.250 INCHES diameter and 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM length.
Screw
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTHMinimum 0.240 in; maximum 0.260 in
THREAD
THREAD0.250-28 UNF-3A right-hand
HEAD & DRIVE
HEADC101 headless
WIDTH ACROSS FLATS0.125–0.127 in
MATERIAL & FINISH
MATERIALSTEEL COMP 303 OR STEEL COMP 303SE
MATERIAL SPECASTM A582 — ASSN STD
FINISHPASSIVATE
FINISH SPECQQ-P-35
STANDARDS & TRACEABILITY
NSN5305-01-193-9700
GOVERNING STANDARDAN565AC428H4
FLIS · NSN 5305-01-193-9700 · retrieved 2026-08-09
DOCUMENTS
✓Certificate of Conformance & test reports available for most products (standard cert fees apply)
No drawing on file — request it
AN565AC428H4
Emanon is a stocking distributor — quality-system certifications are held by the certified manufacturers we source from, not by Emanon. Every shipment carries manufacturer certifications and full lot traceability.