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EMANON PART NO.
NAS6704-28
NAS6704-28 is a bolt in iron alloy 660 overall, cadmium overall and chromate overall finish, 0.250 INCHES diameter and 2-11/64 length.
Bolt
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTH2.172 in (2-11/64)
THREAD LENGTHNominal 0.425 in
GRIPMinimum 1.740 in; maximum 1.760 in
GRIP DIAMETER0.2490–0.2495 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
MATERIALIron alloy 660 overall
MATERIAL SPECAMS 5731 — ASSN STD · AMS 5737 — ASSN STD
FINISHCadmium overall and chromate overall
FINISH SPECQQ-P-416,TY 2,CL 2
MECHANICAL
TENSILE STRENGTH160,000 psi
STANDARDS & TRACEABILITY
NSN5306-01-355-8320
GOVERNING STANDARD80205-NAS6704
FLIS · NSN 5306-01-355-8320 · retrieved 2026-08-09
DOCUMENTS
✓Certificate of Conformance & test reports available for most products (standard cert fees apply)
No drawing on file — request it
Fastener Length: 2-11/64", Thread: 1/4-28, Thread Length: 27/64"
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.