Fine-Pitch Hexagon Head Screws

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Product Description

Hebei Dongshao Fastener Manufacturing Co., Ltd. is a well-known supplier and manufacturer of Fine-pitch hexagon head screws in China.Its Fine-pitch hexagon head screws have the following characteristics and applications:

The Fine-pitch hexagon head screws is a common fastener, which is characterized by fine thread teeth, that is, small pitch, which makes the bolt more tight when screwing into the screw hole, improving the reliability and sealing of the connection. In addition, the full-thread design also increases the grip of the bolt, helping to prevent loosening.

The product grades of Fine-pitch hexagon head screws usually include class A and Class B, the main difference between the two is the yield strength and tensile strength of the material. The material yield strength of Class A bolts is higher and suitable for occasions requiring higher carrying capacity, while the material yield strength of Class B bolts is lower and suitable for general connections.

Fine-pitch hexagon head screws is widely used in various occasions because of its characteristics. They are commonly used in the assembly and maintenance of mechanical equipment, such as automobiles, aircraft, factory equipment, etc. Due to its fine tooth design, it is also commonly used in applications requiring high-precision connections, such as electronic equipment and medical devices.

In use, Fine-pitch hexagon head screws are usually used in conjunction with washers to improve the tightness and stability of the connection. In addition, in order to prevent the bolt from loosening, various anti-loosening methods can also be used, such as the use of lock nuts, spring washers, etc.

The design and use of Fine-pitch hexagon head screws should follow the relevant national standards and specifications. In China, the standard for Fine-pitch hexagon head screws is GB/T5786-2000, which is equivalent to the international standard ISO8676:1999. According to this standard, the specification range of Fine-pitch hexagon head screws is M16 ~ M64, performance grades include 5.6, 8.8, 10.9, etc., and the material can be carbon steel

Product Parameter

(mm)	M8	M10	M12	M14	M16	M18	M20	M22	M24	M27	M30	M33	M36	M39	M42	M45	M48	M52	M56	M60	M64
P	1	1\|1.25	1\|1.25\|1.5	1\|1.5	1\|1.5	1.5\|2	1.5\|2	1.5\|2	1.5\|2	1.5\|2	1.5\|2	1.5\|2	1.5\|2\|3	1.5\|2\|3	1.5\|2\|3\|4	1.5\|2\|314	1.5\|2\|3\|4	1.5\|2\|3\|4	1.5\|2\|3\|4	1.5\|2\|3\|4	1.5\|2\|3\|4
da max	9.2	11.2	13.7	15.7	17.7	20.2	22.4	24.4	26.4	30.4	33.4	36.4	39.4	42.4	45.6	48.6	52.6	56.6	63	67	71
e min	14.38	17.77	20.03	23.36	26.75	30.14	33.53	37.72	39.98	45.2	50.85	55.37	60.79	66.44	71.3	76.95	82.6	88.25	93.56	99.21	104.86
k max	5.45	6.58	7.68	8.98	10.18	11.715	12.715	14.215	15.215	17.35	19.12	21.42	22.92	25.42	26.42	28.42	30.42	33.5	35.5	38.5	40.5
k min	5.15	6.22	7.32	8.62	9.82	11.285	12.285	13.785	14.785	16.65	18.28	20.58	22.08	24.58	25.58	27.58	29.58	32.5	34.5	37.5	39.5
r min	0.4	0.4	0.6	0.6	0.6	0.6	0.8	0.8	0.8	1	1	1	1	1	1.2	1.2	1.6	1.6	2	2	2
s max	13	16	18	21	24	27	30	34	36	41	46	50	55	60	65	70	75	80	85	90	95
s min	12.73	15.73	17.73	20.67	23.67	26.67	29.67	33.38	35.38	40	45	49	53.8	58.8	63.1	68.1	73.1	78.1	82.8	87.8	92.8