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DIN 6924 Locking Nuts

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Product Description

Leader-Fastener® DIN 6924 Self-Locking Heavy Locking Nuts, Nylon-Insert Lock Nuts, Nyloc Nuts or Stop Nuts, are locknuts with a nylon or fiber internal collar that increases friction on the screw thread. The screw thread does not cut into the nylon insert, however, the insert deforms elastically over the threads. Since the locking feature can be affected by heat, they are more correctly referred to as “Stop” nuts.

Product Specification of DIN 6924 Locking Nuts

Material : Carbon steel, Stainless steel, Alloy Steel, Brass.

Finishment: Black, Zinc Plated, Zinc Yellow, HDG, Phosphate, DACROMET, Geomet, Magin, Ruspert, Teflon, etc.

Leader-Fastener® DIN 6924 - 1987 Prevailing Torque Type Hexagon Nuts With Non-Metallic Insert

Thread Size D			M3	M4	M5	M6	(M7)	M8	M10	M12	(M14)	M16	(M18)
P	Pitch	Coarse thread	0.5	0.7	0.8	1	1	1.25	1.5	1.75	2	2	2.5
		Fine thread	/	/	/	/	/	1	1	1.5	1.5	1.5	1.5
		Fine thread	/	/	/	/	/	/	-1.25	-1.25	/	/	/
d_a	min		3	4	5	6	7	8	10	12	14	16	18
d_a	max		3.45	4.6	5.75	6.75	7.75	8.75	10.8	13	15.1	17.3	19.5
d_w	min		4.6	5.9	6.9	8.9	9.6	11.6	14.6	16.6	19.6	22.5	24.9
e	min		6.01	7.66	8.79	11.05	12.12	14.38	17.77	20.03	23.35	26.75	29.56
h	max		4.5	6	6.8	8	9	9.5	11.9	14.9	17	19.1	20.6
h	min		4.2	5.7	6.44	7.64	8.64	9.14	11.47	14.47	16.3	18.26	19.76
m	min		2.15	2.9	4.4	4.9	6.14	6.44	8.04	10.37	12.1	14.1	15.1
m_w	min		1.72	2.32	3.52	3.92	4.91	5.15	6.43	8.3	9.68	11.28	12.08
s	max=nominal size		5.5	7	8	10	11	13	16	18	21	24	27
s	min		5.32	6.78	7.78	9.78	10.73	12.73	15.73	17.73	20.67	23.67	26.16
per 1000 units≈kg			0.4	1.1	1.4	3.1	3.2	6	11.7	16.6	21	37.8	51.6

Thread Size D			M20	(M22)	M24	(M27)	M30	(M33)	M36	(M39)	M42	(M45)	M48
P	Pitch	Coarse thread	2.5	2.5	3	3	3.5	3.5	4	4	4.5	4.5	5
		Fine thread	1.5	1.5	2	2	2	2	3	3	3	3	3
		Fine thread	/	/	/	/	/	/	/	/	/	/	/
d_a	min		20	22	24	27	30	33	36	39	42	45	48
d_a	max		21.6	23.7	25.9	29.1	32.4	35.6	38.9	42.1	45.4	48.6	51.8
d_w	min		27.7	31.4	33.2	38	42.7	46.6	51.1	55.9	59.9	64.7	69.4
e	min		32.95	37.29	39.55	45.2	50.85	55.37	60.79	66.44	72.09	76.95	82.6
h	max		22.8	24.5	27.1	31	32.6	35.5	38.9	42	45	48	50
h	min		21.5	23.2	25.8	29.4	31	33.9	37.3	40.4	43.4	46.4	48.4
m	min		16.9	18.1	20.2	22.5	24.3	27.4	29.4	31.8	34	36	38
m_w	min		13.52	14.48	16.16	18	19.44	21.92	23.52	25.44	27.2	28.8	30.4
s	max=nominal size		30	34	36	41	46	50	55	60	65	70	75
s	min		29.16	33	35	40	45	49	53.8	58.8	63.1	68.1	73.1
per 1000 units≈kg			68	86	127	182	273	296	380	505	630	814	995

Material:

a) Steel（nut body）,Property class (material): For size up to M39: 5, 6; For size up to M16: 8, 10 and 12; For size over M39, subject to agreement. As specified in ISO 898-2 and DIN 267-23

b) Material (insert): Nonmetallic, e.g. polyamide

Note: Property class 6 only for fine pitch thread nut

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