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Q 121

Double End Studs, b1=1.25d

Q 121B 双头螺柱 b1=1.25d [一端粗牙，一端较细牙]

See all versions and complete specifications: Double End Studs, b1=1.25d — Full Specification Page

Dimensional Specifications — Q 121 (mm)

Size	P	k_max	k_min	s_max	s_min	k_nominal
M10	(M12×1.5)	15.9	14.1	12	11.57	15
M12	M22×2	29.05	26.95	22	21.48	28

Related Standards

GB /T 9125.1 - 2020— Double End Studs for Pipe Flange Connection - PN Designated GB /T 9125 - 2010— Double End Studs - Product Grade B for Pipe Flange Connection GB /T 9125 - 2010— Double End Studs for Pipe Flange Connection GB /T 9125 - 2003— Double End Studs for Pipe Flange Connection GB /T 897 - 1988— Double End Studs, bm=1d GB /T 898 - 1988— Double End Studs-bm=1.25d GB /T 899 - 1988— Double End Studs b1=1.5d GB /T 900 - 1988— Double End Studs-bm=2d

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