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ASME B 18.6

Type IA Cross Recessed Oval Countersunk Trim Head Tapping Screws - Type A Thread Forming [Table 29]

ASME B 18.6.4 - 1998 (R2005) IA型米字槽半沉头精整自攻螺钉，A型 [Table 29]

See all versions and complete specifications: Type IA Cross Recessed Oval Countersunk Trim Head Tapping Screws - Type A Thread Forming [Table 29] — Full Specification Page

Dimensional Specifications — ASME B 18.6 (mm)

Size	P	e	r	k_max	k_min	s_max	s_min	ds_max	ds_min	k_nominal	ds_nominal
4#	0.1250	0.089	0.130	0.191	0.066	4	0.118	0.099	0.130	0.212	0.037
5#	0.1380	0.080	0.162	0.215	0.075	5	0.131	0.112	0.152	0.237	0.041

Related Standards

GB /T 847 - 2017— Cross Recessed Raised Countersunk (Oval) Head Tapping Screws GB 847 - 1985— Cross Recessed Raised Countersunk Head Tapping Screws DIN 7983 - 1990— Cross Recessed Raised Countersunk Head Tapping Screws ISO 7051 - 2011— Cross Recessed Raised Countersunk Head Tapping Screws ISO 7051 - 1983— Cross Recessed Raised Countersunk Head Tapping Screws ISO 9268 (F2) - 1988— Metal Bone Screw, with Cruciate Recess, Thread Form HC [Figure 2]JIS B 1122 (T9) - 2015— Cross Recessed Raised Countersunk Head Tapping Screws JIS B 1122 (JA5) - 2015— Cross Recessed Raised Countersunk Head Tapping Screws - Threaded Portion are of Class 1 to 4

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