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GB 39 - 1988

Square Nuts - Product Grade C

GB 39 - 1988 方螺母产品等级：C级

See all versions and complete specifications: Square Nuts-Product Grade C — Full Specification Page

Dimensional Specifications — GB 39 - 1988 (mm)

Size	P	k_max	k_min	s_max	s_min	k_nominal	ds_nominal
M3	0.7	2	8.63	7	6.64	3.2	0.49
M4	1	3.8	12.53	10	9.64	5	1.92
M5	1.5	6.5	20.24	16	15.57	8	8.31
M6	2	9.2	26.21	21	20.16	11	18.12
M8	2.5	13.2	34.01	27	26.16	15	44.26

Related Standards

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— Square Nuts with Single Chamfer JIS B 1163 - 2001

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