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Q 221

Cross Recessed Pan Head Tapping Screws and Large Plain Washer Assemblies

Q 221B 十字槽盘头自攻螺钉和大平垫组合

See all versions and complete specifications: Cross Recessed Pan Head Tapping Screws and Large Plain Washer Assemblies — Full Specification Page

Dimensional Specifications — Q 221 (mm)

Size	P	s_max	s_min
ST2.9	1.3	1	11
ST3.5	1.6	1.6	15
ST4.2	1.8	1.6	15

Related Standards

GB /T 9074.18 (S2) - 2017— Cross Recessed Pan Head Tapping Screws and Plain Washer Assemblies GB /T 9074.18 (S2) - 2002— Cross Recessed Pan Head Tapping Screws and Plain Washer Assemblies GB /T 9074.18 - 1988— Cross Recessed Pan Head Tapping Screws and Plain Washer Assemblies GB 9074.19 - 1988— Cross Recessed Pan Head Tapping Screw and Large Plain Washer Assemblies GB /T 9074.18 (S3) - 2017— Slotted Pan Head Tapping Screws and Plain Washer Assemblies GB /T 9074.18 (S3) - 2002— Slotted Pan Head Tapping Screws and Plain Washer Assemblies DIN 6901 - 1990— Tapping Screw and Washer Assemblies ISO 10510 (S2) - 2011

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