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EMANON PART NO.
AN565F428H9
AN565F428H9 is a screw in steel comp 4037 overall or steel comp 4137 overall or steel comp 4140 overall or steel comp 8630 overall or steel comp 8740 overall, cadmium overall and chromate overall finish, 0.250 INCHES diameter and 9/16 length.
Screw
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTH0.563 in (9/16)
THREAD LENGTHMinimum 0.552 in; maximum 0.572 in
THREAD
THREAD1/4-28
HEAD & DRIVE
HEADHeadless (setscrew)
WIDTH ACROSS FLATS0.125–0.127 in
MATERIAL & FINISH
MATERIALSteel comp 4037 overall or steel comp 4137 overall or steel comp 4140 overall or steel comp 8630 overall or steel comp 8740 overall
MATERIAL SPEC66 — FED STD
FINISHCadmium overall and chromate overall
FINISH SPECQQ-P-416 TY 2 CL 2
MECHANICAL
HARDNESS45–53 HRC
STANDARDS & TRACEABILITY
NSN5305-01-006-8979
GOVERNING STANDARDAN565F428H9
FLIS · NSN 5305-01-006-8979 · retrieved 2026-08-09
DOCUMENTS
✓Certificate of Conformance & test reports available for most products (standard cert fees apply)
No drawing on file — request it
Fastener Length: 9/16", Thread: 1/4-28, Head Width: 1/8", Thread Length: 9/16"
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.