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REFERENCE IMAGE
EMANON PART NO.
MS51021-58
MS51021-58 is a screw in steel comp, passivate finish, 0.250 INCHES diameter and 3/8 length.
Screw
REFERENCE IMAGEReference image — representative of the type, not the exact part; verify dimensions per specification.
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTH0.375 in (3/8)
THREAD LENGTH0.375 in MAXIMUM
THREAD
THREAD1/4-20
HEAD & DRIVE
HEADHeadless (setscrew)
WIDTH ACROSS FLATS0.125 in nom
MATERIAL & FINISH
MATERIALSteel
MATERIAL SPEC66 FED STD ALL MATERIAL RESPONSES
FINISHPassivate
FINISH SPECQQ-P-35
STANDARDS & TRACEABILITY
NSN5305-00-638-8753
FLIS · NSN 5305-00-638-8753 · retrieved 2026-08-09
DOCUMENTS
✓Certificate of Conformance — included with every order
No drawing on file — request it
Fastener Length: 3/8", Thread: 1/4-20, Head Width: 1/8", Thread Length: 3/8
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.