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EMANON PART NO.
NAS6604H15
NAS6604H15 is a bolt in steel comp e4340 overall or steel comp 8740 overall, cadmium overall and chromate overall finish, 0.250 INCHES diameter and 1.348 inches minimum and 1.378 inches maximum length.
Bolt
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTHMinimum 1.348 in; maximum 1.378 in
THREAD LENGTHMinimum 0.400 in; maximum 0.450 in
GRIPMinimum 0.928 in; maximum 0.948 in
GRIP DIAMETER0.2485–0.2495 in
THREAD
THREAD1/4-28
HEAD & DRIVE
HEADDished hexagon
HEAD HEIGHTMinimum 0.125 in; maximum 0.140 in
WIDTH ACROSS FLATS0.429–0.439 in
MATERIAL & FINISH
MATERIALSteel comp e4340 overall or steel comp 8740 overall
MATERIAL SPECMIL-S-5000 — MIL SPEC · MIL-S-6049 — MIL SPEC · AMS6322 — ASSN STD
FINISHCadmium overall and chromate overall
FINISH SPECQQ-P-416,TY 2,CL 2
MECHANICAL
TENSILE STRENGTH160,000 psi
HARDNESS36–40 HRC
STANDARDS & TRACEABILITY
NSN5306-01-167-0472
GOVERNING STANDARD80205-NAS6604
FLIS · NSN 5306-01-167-0472 · retrieved 2026-08-09
DOCUMENTS
✓Certificate of Conformance & test reports available for most products (standard cert fees apply)
No drawing on file — request it
length: 1.363", grip: 0.938", thread: 1/4-28, hex head, drilled head, 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.