Stainless Steel Locknuts for use with Cotter Pins

Product Description:

These locknuts have good chemical resistance and may be mildly magnetic. Also known as castle nuts, secure them by inserting a cotter pin or safety wire through the slots in the nut and a drilled hole in your bolt for mild loosening resistance.

They’re not recommended for use on parts exposed to high vibration because the pin is prone to shearing under prolonged stress. Height includes the slots. Cotter pins are not included.

Product Drawing:

Hexagon slotted nuts
DIN 935-2013
D(mm)	P(mm)	m(mm)		n(mm)		s(mm)		w(mm)
		min	max	min	max	min	max	min	max
M4	0.7	4.7	5	1.2	1.45	6.78	7	2.9	3.2
M5	0.8	5.7	6	1.4	1.65	7.78	8	3.7	4
M6	1	7.14	7.5	2	2.25	9.78	10	4.7	5
M7	1	7.64	8	2	2.25	10.73	11	5.2	5.5
M8	1/1.25	9.14	9.5	2.5	2.75	12.73	13	6.14	6.5
M10	1/1.25/1.5	11.57	12	2.8	3.05	15.73/16.73	16/17	7.64	8
M12	1.25/1.5/1.75	14.57	15	3.5	3.8	17.73/18.67	18/19	9.64	10
M14	1.5/2	15.57	16	3.5	3.8	20.67/21.67	21/22	10.57	11
M16	1.5/2	18.48	19	4.5	4.8	23.67	24	12.57	13
M18	1.5/2/2.5	20.16	21	4.5	4.8	26.16	27	14.57	15
M20	1.5/2/2.5	21.16	22	4.5	4.8	29.16	30	15.57	16
M22	1.5/2/2.5	25.16	26	5.5	5.8	31/33	32/34	17.57	18
M24	2/3	26.16	27	5.5	5.8	35	36	18.48	19
M27	2/3	29.16	30	5.5	5.8	40	41	21.48	22
M30	2/3.5	32	33	7	7.36	45	46	23.48	24
M33	2/3.5	34	35	7	7.36	49	50	25.48	26
M36	3/4	37	38	7	7.36	53.8	55	28.48	29
M39	3/4	39	40	7	7.36	58.8	60	30.28	31
M42	3/4.5	45	46	9	9.36	63.1	65	33.38	34
M45	3/4.5	47	48	9	9.36	68.1	70	35.38	36
M48	3/5	49	50	9	9.36	73.1	75	37.38	38
M52	3/5	52.8	54	9	9.36	78.1	80	41.38	42
M56	4/5.5	55.8	57	9	9.36	82.8	85	44.38	45
M60	4/5.5	61.8	63	11	11.43	87.8	90	47.38	48
M64	4/6	64.8	66	11	11.43	92.8	95	50.26	51
M68	4/6	67.8	69	11	11.43	97.8	100	53.26	54
M72	4/6	71.8	73	11	11.43	102.8	105	57.26	58
M76	4/6	74.8	76	11	11.43	107.8	110	60.26	61
M80	4/6	77.6	79	11	11.43	112.8	115	63.26	64
M85	4/6	86.6	88	14	14.43	117.8	120	67.26	68
M90	4/6	90.6	92	14	14.43	127.5	130	71.26	72
M100	4/6	98.6	100	14	14.43	142.5	145	79.26	80

Product Features:

Slotted nuts,also known as castellated nuts,have grooved heads that align with holes in the mated bolt to accept the insertion of a cotter pin,locking the nut in place.

They are commonly used to ensure that shaft components in certain automotive assemblies do not separate or to maintain machine settings in manufacturing environments.

Factory:

Applications: