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GB 58 - 1966

Hexagon Slotted Nuts

GB 58 - 1966 六角槽型螺母（精制）

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Dimensional Specifications — GB 58 - 1966 (mm)

Size	P	k_max	k_min	s_max	s_min	k_nominal	ds_nominal
M12	16	22	10	3.5	3.8	3.4	9.42
M14	20	27	14	5	5.3	4.9	13.3
M16	24	32	18	7	7.36	6.9	17.3
M18	28	41	20	7	7.36	6.9	19.16
M20	38	55	26	8	8.36	7.9	25.16

Related Standards

GB 9457 - 1988— Hexagon Slotted and Castle Nuts, Style 1 - Fine Pitch Thread - Product Grades A and B GB 9458 - 1988— Hexagon Slotted and Castle Nuts, Style 2 - Fine Pitch Thread - Product Grades A and B GB 6178 - 1986— Hexagon Slotted and Castle Nuts, Style 1 - Product Grades A and B GB 6179 - 1986— Hexagon Slotted Nuts,Style 1-Product Grade C GB 6180 - 1986— Hexagon Slotted and Castle Nuts, Style 2 - Product Grade A and B DIN 935-1 - 2013— Hexagon Slotted and Castle Nuts - Part 1: Metric Coarse and Fine Pitch Thread, Product Grades A and B DIN 935-3 - 2013— Hexagon Slotted Nuts - Part 3: Metric Coarse Pitch Thread, Product Grade C DIN 935-3 - 2000

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