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EMANON PART NO.
MS16998-49
MS16998-49 is a screw in steel overall, cadmium overall and chromate overall finish, 0.250 INCHES diameter and 1-63/64 length.
Screw
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTH1.984 in (1-63/64)
THREAD LENGTHMinimum 0.960 in; maximum 1.000 in
THREAD
THREAD1/4-28
HEAD & DRIVE
HEADFlat chamfer
HEAD HEIGHTMinimum 0.244 in; maximum 0.250 in
HEAD DIAMETER0.365–0.375 in
WIDTH ACROSS FLATS0.187–0.190 in
MATERIAL & FINISH
MATERIALSteel overall
FINISHCadmium overall and chromate overall
FINISH SPECQQ-P-416,TYPE 2,CLASS 3
MECHANICAL
TENSILE STRENGTH160,000 psi
HARDNESS36–45 HRC
STANDARDS & TRACEABILITY
NSN5305-00-983-6666
GOVERNING STANDARDMS16998-49
ALTERNATE PART NUMBERSNAS1351-4-32P
DOCUMENTS
✓Certificate of Conformance & test reports available for most products (standard cert fees apply)
No drawing on file — request it
Fastener Length: 1-63/64", Thread: 1/4-28, Head Width: 3/16", Thread Length: 0-63/64
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.