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ASME B 18.6

Square Recessed Mushroom Head Tapping Screws - Type AB and ABR

ASME B 18.6.3 (T25-III+T40) - 2013 四方槽大扁头 AB ABR自攻螺钉

See all versions and complete specifications: Square Recessed Mushroom Head Tapping Screws - Type AB and ABR — 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
2#	0.0990	0.151	0.051	0.038	0.028	28	0	0.211	0.061	0.070	0.226
3#	0.1250	0.191	0.066	0.055	0.040	20	1S	0.272	0.078	0.091	0.289
4#	0.1510	0.231	0.081	0.055	0.040	19	1S	0.333	0.094	0.091	0.352
5#	0.1900	0.283	0.103	0.075	0.060

Related Standards

ISO 5835 (F1) - 1991— Screw with Shallow Thread (HA) [Figure 1]ISO 5835 (F3) - 1991— Screw with Deep Thread (HB) [Figure 3]WS 9200 - 2014— Hexagon Socket Cheese Head Self-Tapping Screws ASME B 18.6.5M (T11) - 2000— Metric Square Recessed Flat Countersunk Tapping Screws [Table 11]ASME B 18.6.5M (T11) - 2000 (R2010)— Metric Type Ill Square-Recessed Flat Countersunk Head Tapping Screws [Table 11]ASME B 18.6.3 (H1B-III+T1A) - 2024— Square Recessed Countersunk Head Screws (ASTM F837, F468)ASME B 18.6.3 (H2B-III+T1A) - 2024— Square Recessed Raised Countersunk Head Tapping Screws - Type AB and ABR

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