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Click Specification

(Non-preferred) dimensions in parentheses.

Unit:inch

Unified Hexagon Slotted Nuts - Normal Series

BS 1768 - 1963

Display drawing:

英标BS 1768 - 1963 BS1768 1768BS Unified Hexagon Slotted Nuts - Normal Series

Thread Size
d

1/4

5/16

3/8

7/16

1/2

(9/16)

5/8

3/4

s	max
s	min
e	max
k	max
k	min
w	max
w	min
n ^①	max
n ^①	min
t	Nominal Size

0.4375	0.5000	0.5625	0.6875	0.7500	0.8750	0.9375	1.1250
0.4305	0.4930	0.5545	0.6795	0.7420	0.8670	0.9295	1.1150
0.505	0.577	0.650	0.794	0.866	1.010	1.083	1.300
0.224	0.271	0.333	0.380	0.442	0.489	0.552	0.651
0.214	0.261	0.323	0.370	0.432	0.479	0.542	0.631
0.161	0.177	0.224	0.255	0.302	0.333	0.364	0.432
0.151	0.167	0.214	0.245	0.292	0.323	0.354	0.412
0.088	0.104	0.135	0.135	0.166	0.166	0.198	0.198
0.078	0.094	0.125	0.125	0.156	0.156	0.188	0.188
0.062	0.094	0.109	0.125	0.141	0.156	0.187	0.219

Thread Size
d

7/8

1

1-1/8

1-1/4

(1-3/8)

1-1/2

1-3/4

2

s	max
s	min
e	max
k	max
k	min
w	max
w	min
n ^①	max
n ^①	min
t	Nominal Size

1.3125	1.5000	1.6875	1.8750	2.0625	2.2500	2.6250	3.0000
1.3005	1.4880	1.6575	1.8300	2.0175	2.2050	2.5650	2.9400
1.515	1.732	1.948	2.165	2.382	2.598	3.031	3.464
0.760	0.874	0.989	1.087	1.197	1.311	1.530	1.754
0.740	0.844	0.949	1.037	1.147	1.251	1.470	1.684
0.510	0.593	0.661	0.728	0.806	0.889	1.030	1.176
0.490	0.563	0.621	0.678	0.756	0.829	0.970	1.106
0.198	0.260	0.260	0.322	0.322	0.385	0.448	0.448
0.188	0.250	0.250	0.312	0.312	0.375	0.438	0.438
0.250	0.281	0.328	0.359	0.391	0.422	0.500	0.578

Similar Standards

1		[DIN] DIN 979 - 2013	Hexagon Thin Slotted Nuts And Castle Buts With Metric Coarse And Fine Pitch Thread,Product Grades A and B
2		[DIN] DIN 937 - 1983	Hexagon Thin Castle Nuts (Previous Design)
3		[DIN] DIN 979 - 1987	Hexagon thin slotted nuts and castle nuts with metric coarse and fine pitch thread,product grades A and B
4		[GB] GB 60 - 1976	Hexagonal slotted reduced height nuts
5		[GB] GB 60 - 1966	Hexagonal slotted reduced height nuts
6		[GB] GB 9459 - 1988	Hexagon Thin Slotted Nuts - Fine Pitch Thread - Prodnct Grade A and B
7		[GB] GB 6181 - 1986	Hexagon Thin Slotted Nuts-Product Grade A and B
8		[UNI] UNI 5594 - 1976	Slotted And Castle Low Hexagon Nuts
9		[CNS] CNS 4470 - 1983	Slotted Hexagon Thin Nuts
10		[GOST] GOST 5919 - 1973	Hexagon Thin Slotted And Castle Nuts, Accuracy Class B
11		[GOST] GOST 5933 - 1973	Hexagon Thin Slotted And Castle Nuts, Accuracy Class A
12		[GOST] GOST 5935 - 1973	Hexagon Slotted Lock-Nuts With Reduced Across Flats Width, Of Accuracy Class A