DIN 661 Steel Rivet for Hammering

The DIN 661 rivet for hammering is a metal fastener for permanent joints. Standardized fastener types are produced for various purposes. DIN 661 is one of them.

This type of countersunk head rivet is made from steel grades 40KhL, 40Kh, St45, St20, St30, as well as stainless steels 12Kh18N10T, 12Kh18N9, A4 and A2. The fasteners may be uncoated or coated with white zinc. DIN 661 fasteners comply with the requirements of GOST 10300. For exclusive orders, supply in brass or copper is possible.

The rivet is used where an especially strong permanent joint of metal surfaces, parts, and structural elements subject to constant vibration loads is required. For example, for joining elements that cannot or should not be welded, since heating changes the dimensional parameters of heat-treated surfaces. This type of fastener is particularly in demand in the shipbuilding industry — these fastening products are used specifically for producing small metal vessels. An ordinary motorboat made of light metals experiences pulsating loads from wave impacts and engine operation while moving along a river. The plates forming the hull of the vessel, joined with this type of rivet, dampen the force loads. As a result, the metal does not tear under maximum vibration loads thanks to the shock-absorbing effect of the riveted joint.

To join two metal surfaces, the steel rivet for hammering is used as follows. Marks are made on the parts to be joined, and holes are drilled at these marks. The surfaces are then aligned so the holes match, and the parts are clamped together using a clamp or vise. The rivet is then inserted into the hole and the edges are struck with a hammer around the circumference until the cylindrical part of the fastener flattens and takes a shape similar to the head of the fastener.

In series production, pneumatic riveting hammers are used, but the setting principle remains the same. This type of fastener gives the joint between metal parts a neat appearance, partly due to the shape of the fastener’s head.

The DIN 661 standard corresponds to GOST 10300, ISO 1051.

Description: DIN 661 Steel Rivet for Hammering with Countersunk Head. Rivet diameter from 2 to 8 mm, length from 6 to 50 mm.

Materials:

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

Dimensions of the DIN 661 steel rivet for hammering, in 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	1.4	2	2.5	3	4
l	d1
	2	3	4	5	6	8
6
8
10
12
14
16
18
20
25
28
30
35
40
45
50

d₁ d₂ d₃ e k
1	1.8	0.93	0.5	0.5
2	3.5	1.87	1	1
2.5	4.4	2.37	1.25	1.2
3	5.2	2.87	1.5	1.4
4	7	3.87	2	2
5	8.8	4.82	2.5	2.5
6	10.5	5.82	3	3
7	12.2	6.82	3.5	3.5
8	14	7.76	4	4