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JIS B 1129 - 2004

Hexagon Head Tapping Screws and Plain Washesr Assemblies

JIS B 1129 - 2004 六角头自攻螺钉和平垫组合

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Dimensional Specifications — JIS B 1129 - 2004 (mm)

Size	P	k_max	s_max	s_min	k_nominal
ST2.2	1.1	9	1	7	1
ST2.9	1.4	12	1	9	1
ST3.5	1.8	15	1.6	12	1.6
ST4.2	2.1	24	1.6	16	2
ST4.8	2.1	30	2	20	2.5

Related Standards

GB /T 9074.20 - 2004— Cross Recessed Hexagon Head Tapping Screw with Indentation and Washer Assemblies with Plain Washers GB /T 9074.20 - 1988— Cross Recessed Hexagon Head Tapping Screw with Indentation and Plain Washer Assemblies GB 9074.21 - 1988— Cross Recessed Hexagon Head Tapping Screw with Indentation and Large Plain Washer Assemblies GB 9074.22 - 1988— Hexagon Head Tapping Screw and Plain Washer Assemblies GB 9074.23 - 1988— Hexagon Head Tapping Screw and Plain Washer Assemblies GB /T 9074.18 (S1) - 2017— Hexagon Head Tapping Screws and Plain Washer Assemblies GB /T 9074.18 (S1) - 2002— Hexagon Head Tapping Screws and Plain Washer Assemblies ISO 10510 (S1) - 2011

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