GB /T 923-1988 Acorn nuts

Unit: mm

国标GB /T923-1988 GB923 923GB(GB923-1976) Acorn nuts

Screw Thread
d

M3

M4

M5

M6

M8

M10

M12

(M14)

M16

(M18)

M20

(M22)

M24

P	Pitch
h
s	max
	min
m
e	min
e₁	max
per 1000 units ≈ kg

0.5	0.7	0.8	1	1.25	1.5	1.75	2	2	2.5	2.5	2.5	3
2.5	3	4	5	6	8	10	11	13	14	16	18	19
5.5	7	8	10	13	16	18	21	24	27	30	34	36
5.32	6.78	7.78	9.78	12.73	15.73	17.73	20.67	23.67	26.16	29.16	33	35
6	7	9	11	15	18	22	24	26	29	32	35	38
6.01	7.66	8.79	11.05	14.38	17.77	20.03	23.35	26.75	29.56	32.95	37.29	39.55
5	6	7.2	9.2	13	16	18	20	22	25	28	30	34
0.57	1.04	1.25	2.77	6.73	12.88	17.46	24.66	39.84	48.78	71.96	102	127.8

Alternative history

GB /T 923 - 1988 GB /T 923 - 2009

Similar Standards

1		[GB] GB /T 923-2009	Acorn Hexagon Nuts
2		[DIN] DIN 917-2015	Hexagon Cap Nuts,Low Type
3		[DIN] DIN 1587-1987	Hexagon domed cap nuts
4		[DIN] DIN 1587-2014	Hexagon Domed Cap Nuts, High Type
5		[DIN] DIN 917-2000	Hexagon cap nuts,low type
6		[DIN] DIN 917-1987	Hexagon cap nuts,low type
7		[DIN] DIN 319-1978	Ball knobs [Type C]
8		[JIS] JIS B 1183-2001	Hexagon Acorn nuts
9		[JIS] JIS B 1183-2001	Hexagon acorn nuts
10		[JIS] JIS B 1181-2001	Small hexagon acorn nuts,Fine pitch
11		[JIS] JIS B 1181-2001	Small hexagon acorn nuts
12		[JIS] JIS B 1183-2010	Acorn hexagon nuts
13		[JIS] JIS B 1183-2010	Small acorn hexagon nuts
14		[UNI] UNI 5721	Domed Cap Nuts
15		[CNS] CNS 4472-1983	Hexagon Cap Nuts, Low Type
16		[KS] KS B 1026-1990	Hexagon Acorn Nuts
17		[KS] KS B 1026-1990	Small Domed Cap Nuts
18		[YJT] YJT 1049-2013	Plastic hexagon acorn nut
19		[SAE] SAE J 483-2006	Hexagon Acorn Nuts