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Explore our range of high-quality bolts designed for durability and reliability.

Hex Jam Nuts

A hex anti-loose nut is a specialized nut designed to prevent loosening. Featuring a hexagonal shape, it provides stable connections in high-vibration and high-load environments. The unique internal design ensures that the nut remains tight even under prolonged use or extreme conditions. Widely used in machinery, automotive, construction, and industrial applications, the hex anti-loose nut enhances connection safety and reliability.

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Product Photos and Information

Key Features

Anti-loosening: Designed to prevent nut loosening due to vibration

High Strength: Suitable for high-load and high-stress applications

Corrosion Resistance: Various surface treatments provide excellent corrosion resistance

Easy Installation: Convenient and quick installation process

Specifications Table

Parameter	Description
Material	Carbon Steel, Stainless Steel, Alloy Steel
Surface Finish	Zinc Plating, Coating, Oxidizing
Sizes	M5-M30 (or custom as per request)
Strength Grade	Grade 8, Grade 10, Grade 12
Shape	Hexagon, Square, Round
Temperature Range	-40°C to +300°C

Applications

Industrial Equipment，Automotive Manufacturing，Construction，Machinery

Product Standards

Thread Size (D)		M5	M6	M8	M10	M12	(M14)	M16	M20	M24	M30	M36
P	Pitch	0.8	1	1.25	1.5	1.75	2	2	2.5	3	3.5	4
d_a	Maximum	5.75	6.75	8.75	10.80	13.00	15.10	17.30	21.60	25.90	32.40	38.90
d_a	Minimum	5.00	6.00	8.00	10.00	12.00	14.00	16.00	20.00	24.00	30.00	36.00
d_w	Minimum	6.88	8.88	11.63	14.63	16.63	19.64	22.49	27.70	33.25	42.75	51.11
e	Minimum	8.79	11.05	14.38	17.77	20.03	23.36	26.75	32.95	39.55	50.85	60.79
h	Maximum	7.2	8.5	10.2	12.8	16.1	18.3	20.7	25.1	29.5	35.6	42.6
h	Minimum	6.62	7.92	9.5	12.1	15.4	17	19.4	23	27.4	33.1	40.1
m	Minimum	4.8	5.4	7.14	8.94	11.57	13.4	15.7	19	22.6	27.3	33.1
m_w	Minimum	3.84	4.32	5.71	7.15	9.26	10.70	12.60	15.20	18.10	21.80	26.50
s	Maximum	8	10	13	16	18	21	24	30	36	46	55
s	Minimum	7.78	9.78	12.73	15.73	17.73	20.67	23.67	29.16	35	45	53.8
Weight per Thousand (Steel) ≈ kg		1.54	2.94	6.1	11.64	17.92	27.37	40.96	73.17	125.5	256.6	441

About Us

We are dedicated to becoming a premier global provider of fastening solutions, elevating Chinese manufacturing to the forefront of the world stage, and making "Yude" production synonymous with excellence. To achieve this, we must demonstrate unwavering determination. Additionally, we carry the weight of social responsibility and the expectations of our employees. Looking ahead, we aspire to be recognized as a respected enterprise.