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EMANON PART NO.
AN4CH11A
AN4CH11A is a bolt in steel comp 431 overall, passivate overall finish, 0.250 INCHES diameter and 1.141 inches minimum and 1.188 inches maximum length.
Bolt
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTHMinimum 1.141 in; maximum 1.188 in
THREAD LENGTHMinimum 0.438 in; maximum 0.515 in
GRIPMinimum 0.672 in; maximum 0.703 in
THREAD
THREAD1/4-28
HEAD & DRIVE
HEADHexagon
HEAD HEIGHTMinimum 0.140 in; maximum 0.172 in
WIDTH ACROSS FLATS0.428–0.440 in
MATERIAL & FINISH
MATERIALSteel comp 431 overall
MATERIAL SPECMIL-S-18732 — MIL SPEC
FINISHPassivate overall
MECHANICAL
TENSILE STRENGTH125,000 psi
HARDNESS26–32 HRC
STANDARDS & TRACEABILITY
NSN5306-00-180-3359
GOVERNING STANDARDAN4CH11A
FLIS · NSN 5306-00-180-3359 · 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: 1-1/32", grip: 9/16", thread: 1/4-28, corrosion resistant steel, undrilled shank, drilled head, AN4 series bolt
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.