Home > Products & Standards > GB /T 923-1988 Acorn nuts

GB /T 923-1988 Acorn nuts

Unit: mm

国标GB /T923-1988 GB923 923GB(GB923-1976) 盖形螺母

Screw Thread
d

M3

M4

M5

M6

M8

M10

M12

(M14)

M16

(M18)

M20

(M22)

M24

P	Pitch
k
h
s	max
	min
per 1000 units ≈ kg(7.85kg/cm³)
e	min
e₁	max

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
6	7	9	11	15	18	22	24	26	29	32	35	38
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
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
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

Relevant Standards

1

六角盖形螺母

[GB]
GB /T 923-2009

Acorn hexagon nuts

2

低型六角盖形螺母

[DIN]
DIN 917-1987

Hexagon cap nuts,low type

3

六角盖母

[DIN]
DIN 1587-1987

Hexagon domed cap nuts

4

圆球形盖型螺母

[DIN]
DIN 319-1978

Ball knobs

5

矮型六角盖形螺母

[DIN]
DIN 917-2000

Hexagon cap nuts,low type

6

盖形螺母

[JIS]
JIS B 1183-2001

Hexagon Acorn nuts

7

细牙六角盖形螺母

[JIS]
JIS B 1183-2001

Hexagon acorn nuts

8

细牙小六角盖形螺母

[JIS]
JIS B 1181-2001

Small hexagon acorn nuts,Fine pitch

9

小六角盖形螺母

[JIS]
JIS B 1181-2001

Small hexagon acorn nuts

10

六角盖形螺母

[JIS]
JIS B 1183-2010

Acorn hexagon nuts

11

小六角盖形螺母

[JIS]
JIS B 1183-2010

Small acorn hexagon nuts

12

六角盖形螺母

[UNI]
UNI 5721

Domed cap nuts

13

低型六角头盖螺母

[CNS]
CNS 4472-1983

Hexagon Cap Nuts ,low type

14

六角盖形螺母

[KS]
KS B 1026-1990

Hexagon acorn nuts

15

小六角盖形螺母

[KS]
KS B 1026-1990

Small domed cap nuts

16

塑料六角盖形螺母

[YJT]
YJT 1049-2013

Plastic hexagon acorn nut

17

六角盖形螺母

[SAE]
SAE J 483-2006

Hexagon acorn nuts