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JIS B 1163 - 1995

Square Nuts

JIS B 1163 - 1995 四方螺母

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Dimensional Specifications — JIS B 1163 - 1995 (mm)

Size	P	r	k_max	s_max	s_min	ds_max	ds_min	k_nominal
M3	3.2	6.4	2.72	3.2	2.9	7	6.8	3.2
M4	5	9.4	4.52	5	4.7	10	9.8	5
M5	8	16.3	7.42	8	7.64	17	16.75	8
M6	11	21.2	10.3	11	10.57	22	21.65	11
M8	15	26.2	14.3	15	14.57

Related Standards

GB 39 - 1988— Square Nuts - Product Grade C GB /T 2153 - 1991— Rhombic Nut DIN 562 - 2013— Square Thin Nuts, Product Grade B DIN 557 - 1994— Square Nuts-Product Grade C DIN 562 - 1987— Square Thin Nuts, Product Grade B DIN 557 - 1985— Square Nuts-Product Grade C DIN 798 - 2009— Special Foundation Nuts DIN 798 - 1972— Special Foundation Nuts for Special Foundation Bolts According to DIN 797 JIS B 1163 - 2009

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