DIN 480 Square Head Set Screw

The DIN 480 standard covers set screws with a square head and a collar. The metal shank carries full metric thread and has a rounded end. Fasteners of this type are designed for installation into a pre-tapped hole and can also be used together with nuts. The main purpose of the screw is to fix two parts and ensure their correct position relative to each other. The set screw prevents displacement of machine and mechanism components, including under high dynamic and vibration loads.

Screw design features

The DIN 480 screw differs from other types of fasteners in its non-standard head shape and the presence of a collar — a special rim. It is used to prevent self-loosening, as it provides a more secure fixation of the fastener in the material. The square head is convenient for tightening with a wrench, and the high tightening torque ensures tight clamping of the parts and prevents the threaded connection from loosening.

Screws of this type correspond to the Russian standard GOST 1486 and can be used as a replacement. The thread diameter can range from M8 to M20, with a wide range of length options available.

Materials used for fasteners

Set screws can be made from steel of various grades with a property class from 4.8 to 12.9; the high strength allows them to be used for critical connections with increased loads. Carbon steel grades 35, 40Kh can also be supplied with a zinc coating to increase corrosion resistance: a thin layer of zinc prevents oxidation and premature failure of the screw.

Fasteners are also made from stainless steel A2 and A4. These are acid-resistant alloys containing additional chemical elements such as zinc, cobalt and nickel. Stainless alloys are not subject to corrosion, so they can be used indefinitely in conditions of high humidity and other destructive influences. Fasteners can also be made from brass and polymer materials.

Applications and purchase conditions

Set screws are widely used in various industrial sectors: they are used in mechanical engineering, machine tool manufacturing, instrument making, and the assembly of industrial equipment. They are also used in furniture production, the assembly of steel structural frames in construction, and other types of work. These fasteners are distinguished by high strength and durability, making them suitable for connecting parts of various mechanisms and assemblies.

FLOK supplies DIN 480 set screws on wholesale and retail terms. Place your order online: batches of screws undergo mandatory inspection for compliance with standards.

To purchase fasteners, select the required size from the catalogue and contact us to place your order.

Dimensions of DIN 480 square head set screws:

d	M8	M10	M12	M16	M20
dc	10	13	17	21/22	27/28
dp	5.5	7	8.5	12	15
k	11	13	16	20	25
s	8	10	13	16/17	21/22

d	M10	M12	M16	M20
k	13	16	20	25
s	3.12	4.15	4.15	5.15
a₁	4.5	5.3	6	7.5
dp	7	8.5	12	15
z₃	2.5	3	4	5
dc	13	17	21/22	27/28
s	10	13	16/17	21/22