DIN 7967 Alloy Steel 65Mn Self-Locking Counter Nuts Tight Nuts Galvanize/Dacromet

Characteristics, Advantages, and Application Scenarios of DIN 7967 Self-Locking Counter Nuts

Characteristics:

1. Self-Locking Feature: These nuts possess a unique self-locking mechanism that maintains tightness during vibration or external forces, reducing the likelihood of loosening.
2. High-Quality Material: They are typically made of high-quality spring steel, ensuring strength and durability.
3. Surface Treatment: The nuts undergo a Dacromet coating process, providing excellent rust prevention and corrosion resistance, suitable for various harsh environments.
4. Compatibility: Designed to work seamlessly with standard bolts or screws, offering a stable connection.
5. Variety of Sizes: DIN 7967 self-locking nuts come in multiple specifications to cater to different sizes and load requirements.

Advantages:

1. Effective Locking: The self-locking design prevents loosening due to vibration or impact, enhancing safety and reliability.
2. Easy Installation: Compared to regular nuts, DIN 7967 self-locking nuts do not require additional locking devices or tools, simplifying the installation process.
3. Low Maintenance: Their superior rust prevention and corrosion resistance reduce maintenance and replacement frequencies, lowering overall costs.
4. Wide Applicability: The availability of various sizes makes these nuts suitable for a broad range of machinery and equipment.

Application Scenarios:

1. Automotive Industry: In automobile manufacturing, these self-locking nuts are widely used in engine, chassis, and other critical component connections, ensuring safety and stability during high-speed driving and vibrations.
2. Machinery Equipment: They are used in heavy machinery, industrial equipment, and precision instruments to ensure tightening and locking of key components.
3. Aerospace: In the aerospace sector, where fastener requirements are extremely high, these self-locking nuts are favored for their excellent locking performance and durability.
4. Other Fields: Additionally, in bridges, construction, power, and shipping, these self-locking nuts are widely applied in connections requiring high strength and locking capabilities.

Screw Thread			M4	M5	M6	M8	M10	M12
d
P	Series 1		0.7	0.8	1	1.25	1.5	1.75
	Series 2		-	-	-	1	1.25	1.5
	Series 3		-	-	-	-	1	1.25
d	Series 1		3.5	4.5	5.3	6.9	8.6	10.4
	Series 2		-	-	-	7.1	9	10.7
	Series 3		-	-	-	-	9.3	11
e	≈		8.1	9.2	11.5	15	19.6	21.9
m			2.5	2.5	3	3.5	4	4.5
s	max=nominal size (h13)		7	8	10	13	17	19
	min		6.78	7.78	9.78	12.73	16.73	18.67
t	Series 1		0.3	0.4	0.4	0.5	0.5	0.6
	Series 2		-	-	-	0.4	0.5	0.6
	Series 3		-	-	-	-	0.5	0.6
per 1000 units≈kg	Series 1		0.17	0.28	0.4	0.9	1.4	1.9
	Series 2		-	-	-	0.7	1.4	1.9
	Series 3		-	-	-	-	1.4	1.9
Screw Thread			M14	M16	M18	M20	M22	M24
d
P	Series 1		2	2	2.5	2.5	2.5	3
	Series 2		1.5	1.5	2	2	2	2
	Series 3		-	-	1.5	1.5	1.5	1.5
d	Series 1		12	14.1	15.5	17.6	19.6	21
	Series 2		12.7	14.8	16.2	18.3	20.3	22.5
	Series 3		-	-	16.8	18.8	20.8	22.8
e	≈		25.4	27.7	31.2	34.6	36.9	41.6
m			5	5	5.5	6	6	7
s	max=nominal size (h13)		22	24	27	30	32	36
	min		21.67	23.67	26.67	29.67	31.61	35.61
t	Series 1		0.6	0.7	0.7	0.8	0.8	0.9
	Series 2		0.6	0.7	0.7	0.8	0.8	0.9
	Series 3		-	-	0.7	0.7	0.7	0.7
per 1000 units≈kg	Series 1		2.5	3.4	4.1	5.8	6.4	9.5
	Series 2		2.5	3.4	4.1	5.8	6.4	9.5
	Series 3		-	-	4.1	5.1	5.6	7.4
Screw Thread			M27	M30	M33	M36	M39	M42
d
P	Series 1		3	3.5	3.5	4	4	4.5
	Series 2		2	2	2	3	3	3
	Series 3		-	-	-	-	-	-
d	Series 1		24.2	26.6	29.8	32.2	35.2	37.6
	Series 2		25.5	28.5	31.5	33.6	36.6	39.8
	Series 3		-	-	-	-	-	-
e	≈		47.3	53.1	57.7	63.5	69.3	75
m			7	8	8	9	9	11
s	max=nominal size (h13)		41	46	50	55	60	65
	min		40.61	45.61	49.61	54.54	59.54	64.54
t	Series 1		1	1.1	1.2	1.3	1.3	1.4
	Series 2		1	1	1	1.3	1.3	1.4
	Series 3		-	-	-	-	-	-
per 1000 units≈kg	Series 1		13	17.5	22	29	32	45
	Series 2		13	16	18.5	29	32	45
	Series 3		-	-	-	-	-	-
Screw Thread			M45	M48	M52
d
P	Series 1		4.5	5	5
	Series 2		3	3	3
	Series 3		-	-	-
d	Series 1		40.9	43.9	48.2
	Series 2		42.8	45.8	49.8
	Series 3		-	-	-
e	≈		80.8	86.5	92.4
m			12	14	16
s	max=nominal size (h13)		70	75	80
	min		69.54	74.54	79.54
t	Series 1		1.5	1.6	1.7
	Series 2		1.5	1.5	1.5
	Series 3		-	-	-
per 1000 units≈kg	Series 1		64	80	95
	Series 2		64	75	80
	Series 3		-	-	-