DIN 660 Steel Hammer-Set Rivet

The DIN 660 rivet is a steel hammer-set rivet with a round head, corresponding to GOST 10299 and ISO 1051. The rivet as a fastening material has been known for a long time: it was used to join ship hulls before the advent of metal welding.

Riveted joints remain a reliable fastening solution and are used in aircraft manufacturing — in the assembly of airliner fuselages, in shipbuilding, including submarine construction, in joining metal girders of bridge structures, and in high-rise construction.

The DIN 660 rivet has become widespread as a simple method of joining surfaces and parts in construction. It corresponds to the German standard DIN 660, the Russian standard GOST 10299, and the international standard ISO 1051.

Steel rivets are also manufactured from stainless steel A2, A4, as well as from brass, copper, and aluminium. It is a smooth cylinder of a specified length with a head at one end.

The riveting technique is of medium complexity. The parts to be joined are marked out and drilled, then the holes are aligned and the rivets are inserted into them. The size of the fastener depends on the diameter of the holes made: the recommended hole diameter is twice the thickness of the part being joined. After the rivet is set in its working position, it is struck with a hammer with enough force to flare out the end opposite the head of the fastener. A single blow is not enough — the edges of the fastener are worked with the hammer until the cylindrical pin forms an oval cap resembling the rivet’s head.

Today these fasteners are set with a hammer by craftsmen repairing pots, ladles, and similar items. In industry, special pneumatic hammers operating on an automatic principle are used, as well as riveting machines.

The hammer-set rivet has a number of advantages over welding of metal surfaces. The joined metal does not overheat and does not lose strength. The rivet is firmly fixed within the joined part, but under a certain force a small amount of play remains — this clearance protects the structure from tearing. At the Battle of Tsushima, a direct hit by a shell on a ship’s hull loosened the tension of the rivets, but did not pierce the hull — their shock-absorbing capacity came into play.

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Description: DIN 660 Steel hammer-set rivet with round head. Rivet diameter from 2 to 8 mm, length from 4 to 60 mm.

Materials:

• Steel
• Stainless steel: A2, A4
• Non-ferrous metals, alloys: brass, copper, aluminium

Dimensions of DIN 660 steel hammer-set rivets, mm:

d2	3.5	5.2	7	8.8	10.5	14
d3 min.	1.87	2.87	3.87	4.82	5.82	7.76
e max.	1	1.5	2	2.5	3	4
k	1.2	1.8	2.4	3	3.6	4.8
l	d1
	2	3	4	5	6	8
4
6
8
10
12
14
16
18
20
25
28
30
35
40
45
50
60

Size mm	n:o
1.47×4.76	0×5
1.85×4.76	0
1.85×6.35	0×6
2.49×4.76	2×5
2.89×4.76	4×5
2.89×6.35	4×5
3.50×6.35	6×6