DIN 980 Self-Locking Hexagon Nut with Chamfered Edges

DIN 980 covers all-metal hexagon nuts with chamfered edges.

The special feature of this product is its unusual geometry: the chamfered edges prevent the joint from spontaneously loosening, so the connection stays secure even under dynamic or vibration loads. No additional anti-loosening elements are required. Fasteners of this type are used in various assemblies and units and are in demand in mechanical engineering.

Materials

High-strength carbon steel is used to manufacture these fasteners — property class 8.0 and 10.0 steel is used per the standard. This provides resistance to mechanical stress and prevents the joint from loosening. The chamfered edges withstand considerable load, and the strength of the metal allows the bolt and nut to reliably hold and secure parts in the correct position. Carbon steel can be zinc-plated — the zinc coating prevents premature oxidation.

The fastener can also be made of A2 stainless steel — this alloy withstands intensive corrosive exposure and can be used in chemically aggressive environments or conditions of high humidity. Nuts made of stainless steel are in demand in industrial manufacturing.

Features and specifications

The design features chamfered edges and a locking ring, which provides reliable protection of the threaded connection against loosening. Fasteners made to DIN 980 have the following set of characteristics:

• Thread diameter — from M3 to M36.
• Thread pitch — from 1 to 3.5 mm.
• Nut height — from 6 to 30 mm.
• Width across flats — from 10 to 46 mm.
• Minimum height of the non-chamfered threaded part — from 3.3 to 16.5 mm.

The closest equivalents are manufactured to the international standards ISO 7042, ISO 7719 and ISO 10513; they may have minor differences in sizes. When selecting equivalents, consultation with a specialist is recommended.

Application options

All-metal self-locking nuts are widely used thanks to effective joint protection, durability and ease of installation. They are installed with a wrench or a power nut driver thanks to the standard hexagon shape. Main areas of application:

• Mechanical engineering industries, including automotive manufacturing, instrument making, machine-tool building and others.
• Construction and assembly work — assembling metal frames, trusses and other parts where joint strength and protection against spontaneous loosening are important.
• Furniture manufacturing and household purposes. The fasteners are available in a wide range of sizes.

Wholesale purchase terms

FLOK supplies a wide range of fastener products. The catalogue on the website features various sizes, and our consultants will help you find the right option or select a matching equivalent under other standardization systems.

Fasteners are supplied wholesale: orders of any batch size can be placed, with delivery to regions across the entire territory of Russia.

Dimension table of DIN 980 (ISO 7042, ISO 10513) all-metal self-locking nuts, in mm

d	h	m’ DIN/ISO	s
M3	3.7	1.65/-	5.5
M4	4.2	2.2/-	7
M5	5.1	2.75/3.52	8
M6	6	3.3/3.92	10
M8	8	4.4/5.15	13
M10	10	5.5/6.43	17
M12	12	6.6/8.30	19
M14	14	7.7/9.68	22
M16	16	8.8/11.28	24
M18	18	9.9/-	27
M20	20	11/13.52	30
M22	22	12.2/-	32
M24	24	13.2/16.16	36
M27	27	14.8/-	41
M30	30	16.5/19.44	46
M33	33	18.2/-	50
M36	36	19.8/23.52	55

Designations:

d - nominal thread diameter

h - nut height, max

m’ - thread part height

s - width across flats

DIN 980 self-locking hexagon nuts with chamfered edges are supplied in zinc-plated and stainless steel.