DIN 6303 Knurled Nut

DIN 6303 – round knurled nuts with a knurled surface, used across various industries. The product is a cylinder with a threaded hole at the center, and it has a knurled head with ridges.

This shape makes it convenient for tightening and loosening by hand; nuts of this type are suitable for assembling quick-release connections. No special tool is required for installation, and these nuts are not designed for high tightening forces. The product is manufactured in two forms: form A has a hole for a pin, while form B is produced without such a hole.

Manufacturing features

Property class 5 steel may be used for manufacturing, finished with galvanic zinc plating. Manufacturing from stainless steel is also possible: fasteners made of A2 and A4 steel can be used in environments with increased corrosive activity. Nuts of this type are also produced from brass and other non-ferrous alloys.

The products have the following characteristics:

• The threaded hole size can range from M5 to M12.
• The head diameter of the product can range from 20 to 40 mm.
• The overall height of the nut is from 12 to 24 mm.
• The height of the product excluding the head is from 7 to 16 mm.

Application and ordering

Knurled nuts with a ridged end surface are used in various assembly operations: they are used for quick-release fastening of mechanism components. Such products are suitable for assembling various devices and machine tools, and are used in furniture manufacturing as adjustment components.

Place your order with FLOK and get fastener products. Supply is offered across the entire territory of Russia.

d	d₁	D	h	l	l₂
M5	14	20	7	12	4
M6	16	24	8	14	4
M8	20	30	10	17	5
M10	28	36	12	20	6
M12	32	40	16	24	8