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REFERENCE IMAGE
EMANON PART NO.
NAS6604D34
NAS6604D34 is a bolt in steel comp e4340 overall or steel comp 8740 overall, cadmium overall and chromate overall finish, 0.250 INCHES diameter and 2.535 inches minimum and 2.565 inches maximum length.
Bolt
REFERENCE IMAGEReference image — representative of the type, not the exact part; verify dimensions per specification.
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTH2.535–2.565 in
THREAD LENGTH0.400–0.450 in
GRIP2.115–2.135 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 AMS 6322
FINISHCadmium and chromate
FINISH SPECQQ-P-416,TY 2 CL 2
MECHANICAL
TENSILE STRENGTH160,000 psi
HARDNESS36–40 HRC
STANDARDS & TRACEABILITY
NSN5306-01-201-2236
GOVERNING STANDARD80205-NAS6604
FLIS · NSN 5306-01-201-2236 · retrieved 2026-08-09
DOCUMENTS
✓Certificate of Conformance — included with every order
No drawing on file — request it
length: 2.550", grip: 2.125", thread: 1/4-28, hex head - drilled shank - tension - long 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.