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REFERENCE IMAGE
EMANON PART NO.
AN565B428H7
AN565B428H7 is a screw in steel comp 4037 or steel comp 4137 or steel comp 4140 or steel comp 8630 or steel comp 8740, cadmium and chromate finish, 0.250 INCHES diameter and 0.438 INCHES NOMINAL length.
Screw
REFERENCE IMAGEReference image — representative of the type, not the exact part; verify dimensions per specification.
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTH0.438 in nom
THREAD LENGTH0.438 in MAXIMUM
THREAD
THREAD0.250-28 UNF-3A right-hand
HEAD & DRIVE
HEADC101 headless
WIDTH ACROSS FLATS0.125–0.127 in
MATERIAL & FINISH
MATERIALSteel 4037/4137/4140/8630 +1
MATERIAL SPEC66 FED STD ALL MATERIAL RESPONSES
FINISHCADMIUM AND CHROMATE
FINISH SPECQQ-P-416,TYPE 2,CLASS 3
MECHANICAL
HARDNESS45–53 HRC
STANDARDS & TRACEABILITY
NSN5305-00-088-9491
GOVERNING STANDARDAN565B428H7
FLIS · NSN 5305-00-088-9491 · retrieved 2026-08-09
DOCUMENTS
✓Certificate of Conformance — included with every order
No drawing on file — request it
AN565B428H7
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.