DIN 936 Hexagon Low Nut

DIN 936 is a German standard for manufacturing steel nuts with metric thread. This fastener has a hexagonal shape, convenient for tightening and loosening with a wrench or power tool.

The nut has a reduced height: this allows it to be used in limited spaces where installing a standard fastener is not possible. A version with fine and extra-fine thread pitch is available to increase the number of thread turns and improve joint reliability. Similar fasteners are manufactured to the international standard ISO 4035.

Materials

Nuts of this type can be manufactured from various materials; the choice depends on the application and operating conditions. The following material variants are available:

• Carbon steel St. The durable alloy can be supplemented with a zinc coating – galvanizing increases corrosion resistance. A protective nickel or chrome coating may be applied, using an electroplating method.
• Stainless steel grades A1-A5. Alloys with added alloying components are not affected by corrosion, so they can be used in conditions of high corrosive activity and humidity.
• Brass, aluminium alloys and other non-ferrous metal alloys. Such products can be used in conditions of high humidity and outdoors.

Nuts are used together with bolts, screws, threaded studs and other threaded fasteners of matching diameter.

Technical specifications

Fasteners manufactured to the DIN 936 standard have the following set of technical characteristics:

• The thread diameter of the nut bore ranges from M2 to M52.
• The product height can range from 1.2 to 26 mm, depending on the diameter.
• The width across flats of the nut ranges from 4 to 80 mm.

Thanks to the wide dimensional range, a product with matching dimensions can be selected. Low nuts can be used to reduce the size of a threaded joint, while it remains sufficiently strong and durable.

Applications

This type of fastener is suitable for use in the assembly of various mechanisms, units and assemblies; it can be used for the needs of mechanical engineering industries. Low nuts are used in machine tool building, instrument making, automotive manufacturing, production of special-purpose vehicles, ships and aircraft. The choice depends on operating conditions and the need for a protective coating. Nuts provide strength to the joint and can be used together with various types of washers to increase reliability.

Products manufactured to a similar standard may have some deviations in dimensions.

Order terms

FLOK sells fasteners of various types wholesale and offers low nuts in a wide range of sizes. The product range includes products from Russian and foreign suppliers.

Size table

d	m	s
M8	5.0	13.0
M10	6.0	17.0
M12	7.0	19.0
M14	8.0	22.0
M16	8.0	24.0
M18	9.0	27.0
M20	9.0	30.0
M22	10.0	32.0
M24	10.0	36.0
M30	12.0	46.0