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REFERENCE IMAGE
EMANON PART NO.
MS16998-42
MS16998-42 is a screw in steel, cadmium and chromate finish, 0.250 INCHES diameter and 5/8 length.
Screw
REFERENCE IMAGEReference image — representative of the type, not the exact part; verify dimensions per specification.
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTH0.625 in (5/8)
THREAD LENGTH0.523–0.625 in
THREAD
THREAD1/4-28
HEAD & DRIVE
HEADFlat chamfer
HEAD HEIGHT0.244–0.250 in
WIDTH ACROSS FLATS0.188–0.190 in
MATERIAL & FINISH
MATERIALSteel
FINISHCadmium and chromate
FINISH SPECQQ-P-416 TY2 CL2
MECHANICAL
TENSILE STRENGTH180,000 psi
HARDNESS38–45 HRC
STANDARDS & TRACEABILITY
NSN5305-00-983-6659
ALTERNATE PART NUMBERSNAS1351-4-10P
FLIS · NSN 5305-00-983-6659 · retrieved 2026-08-07
DOCUMENTS
✓Certificate of Conformance — included with every order
No drawing on file — request it
Length: 5/8", thread: 1/4-28, socket head, self-locking, cadmium plated alloy steel, MS16998 series screw
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.