DIN 555 Hexagon Nut

DIN 555 is a German standard for manufacturing hexagon nuts. This is a universal fastener used across a wide range of industries and construction applications. This standard covers nuts of traditional shape in a broad range of sizes, used for strong threaded connections of parts together with bolts, screws, studs and other types of fasteners.

Similar products are manufactured under the Russian standard GOST ISO 4034-2014 and the international standard ISO 4034. The analogues have some differences in maximum permissible thickness.

Manufacturing features

Hexagon nuts with metric thread are manufactured mainly from carbon steel of various property classes. The steel is supplied with a protective coating of zinc, chromium or nickel; the galvanic protective layer protects the metal from the corrosive effects of the environment. Zinc-plated, nickel-plated or chromium-plated fasteners last significantly longer and are not affected by contact with moisture.

For use under conditions of constant aggressive external exposure, fasteners made of stainless steel grades A1-A5 are used. These alloys contain special alloying components that provide corrosion resistance. Nuts can also be made from brass and aluminium alloys – non-ferrous metals are resistant to environmental effects.

Technical specifications

Hexagon nuts to the DIN 555 standard are manufactured in a wide size range. They have the following characteristics:

• The nominal thread diameter range is from M1 to M110 – this allows nuts of the optimally suitable size to be selected.
• The height of the product can range from 0.8 to 88 mm.
• The width across flats of the nut ranges from 2.5 to 155 mm.

DIN 555 nuts have the largest tolerance for maximum width and height, so if high precision is required, it is recommended to select fasteners to the DIN 934 standard.

Conditions of use

Hexagon nuts are one of the most widely used types of fasteners: they are used everywhere across various branches of mechanical engineering. They are used in the manufacture of automobiles, special equipment, machine tool assembly, various instruments and industrial equipment. They are also used in construction, in the assembly of metal frames, installation work, furniture production, and more. The wide range of materials and sizes makes it possible to select the optimal fastener for a specific task.

FLOK supplies fasteners with the required parameters, and products can be shipped to any region.

Dimensions of DIN 555 hexagon nuts, mm:

d		s	e	m
DIN 555 Hexagon Nut	M5	8	8.63	4
DIN 555 Hexagon Nut	M6	10	10.89	5
DIN 555 Hexagon Nut	M8	13	14.2	6.5
DIN 555 Hexagon Nut	M10	17	18.72	8
DIN 555 Hexagon Nut	M12	19	20.88	10
DIN 555 Hexagon Nut	M14	22	24.49	11
DIN 555 Hexagon Nut	M16	24	26.17	13
DIN 555 Hexagon Nut	M18	27	29.56	15
DIN 555 Hexagon Nut	M20	30	32.95	16
DIN 555 Hexagon Nut	M22	32	35.03	18
DIN 555 Hexagon Nut	M24	36	39.55	19
DIN 555 Hexagon Nut	M27	41	45.2	22
DIN 555 Hexagon Nut	M30	46	50.85	24
DIN 555 Hexagon Nut	M33	50	55.37	26
DIN 555 Hexagon Nut	M36	55	60.79	29
DIN 555 Hexagon Nut	M39	60	66.44	31
DIN 555 Hexagon Nut	M42	65	71.3	34
DIN 555 Hexagon Nut	M45	70	76.95	36
DIN 555 Hexagon Nut	M48	75	82.06	38
DIN 555 Hexagon Nut	M52	80	88.25	42
DIN 555 Hexagon Nut	M56	85	93.56	45
DIN 555 Hexagon Nut	M60	90	99.23	48
DIN 555 Hexagon Nut	M64	95	104.86	51