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ASME B 18.2

Lobed Head Screws [Table 9]

ASME B 18.2.1 (T9) - 2010 梅花头凸缘螺钉 [Table 9]

See all versions and complete specifications: Lobed Head Screws [Table 9] — Full Specification Page

Dimensional Specifications — ASME B 18.2 (mm)

Size	P	e	r	k_max	k_min	s_max	s_min	ds_max	ds_min	k_nominal	ds_nominal
1/2	8	1	E32	0.355	0.343	1.138	1.063	1.479	0.8393	1.053	1.5
1/4	18	0.3125	E10	0.1	0.09	0.362	0.323	0.457	0.2663	0.313	0.469
3/8	12	0.5625	E18	0.165	0.153	0.645	0.551	0.828	0.4663	0.541	0.844
5/8	6	1.375	E44	0.453	0.441

Related Standards

GB /T 35481 - 2017— Hexalobular Bolts with Flange GB /T 35481 - 2017— Hexagon Head Flange Bolts - Reduced Shank DIN 34800 - 2022— Bolts with External Hexalobular Driving Feature with Small Flange DIN 34800 - 2016— Steel Hexalobular Head Bolts with Small Flange DIN 34800 - 2005— Steel Hexalobular Head Bolts with Small Flange DIN 34800 - 2000— Bolts and Screws with External Hexalobular Driving Feature with Small Flange DIN 34801 - 2021— Hexalobular Head Bolts with Large Flange DIN 34801 - 1999— Steel Hexalobular Head Bolts with Large Flange

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