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EMANON PART NO.
NAS501-4H21A
NAS501-4H21A is a bolt in steel comp 321 or steel comp 347, passivate finish, 0.250 INCHES diameter and 2.141 INCHES MINIMUM AND 2.188 INCHES MAXIMUM length.
Bolt
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTHMinimum 2.141 in; maximum 2.188 in
THREAD LENGTHMinimum 0.469 in; maximum 0.485 in
GRIPMinimum 1.672 in; maximum 1.703 in
THREAD
THREAD0.250-28 UNF-3A right-hand
HEAD & DRIVE
HEAD HEIGHTMinimum 0.140 in; maximum 0.172 in
WIDTH ACROSS FLATS0.428–0.440 in
MATERIAL & FINISH
MATERIALSTEEL COMP 321 OR STEEL COMP 347
FINISHPASSIVATE
DOCUMENTS
✓Certificate of Conformance & test reports available for most products (standard cert fees apply)
No drawing on file — request it
NAS501-4H21A
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.