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REFERENCE IMAGE
EMANON PART NO.
NAS6204-4H
NAS6204-4H is a bolt in steel comp e4340 or steel comp 8740, cadmium and chromate finish, 0.250 INCHES diameter and Between 0.605 inches and 0.635 inches length.
Bolt
REFERENCE IMAGEReference image — representative of the type, not the exact part; verify dimensions per specification.
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTH0.605–0.635 in
THREAD LENGTH0.345–0.395 in
GRIP0.240–0.260 in
GRIP DIAMETER0.2485–0.2495 in
THREAD
THREAD1/4-28
HEAD & DRIVE
HEADDished hexagon
HEAD HEIGHT0.125–0.140 in
WIDTH ACROSS FLATS0.429–0.439 in
MATERIAL & FINISH
MATERIALSteel e4340/8740
MATERIAL SPECMIL-S-5000 or MIL-S-6049 or AMS6322
FINISHCadmium and chromate
FINISH SPECQQ-P-416 TY2 CL2
MECHANICAL
TENSILE STRENGTH160,000 psi
HARDNESS36–40 HRC
STANDARDS & TRACEABILITY
NSN5306-01-058-3909
GOVERNING STANDARD80205-NAS6204
FLIS · NSN 5306-01-058-3909 · retrieved 2026-08-09
DOCUMENTS
✓Certificate of Conformance — included with every order
No drawing on file — request it
length: 0.620", grip: 0.250", thread: 1/4-28, hex head, driller, tension, short thread, cadmium plated alloy steel
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.