DIN 909 Tapered Threaded Plug

Tapered threaded plug with hexagon head DIN 909, metric fine or inch thread. Materials: steel 5.8; galvanically zinc-plated steel; stainless steel A1, A2, A3, A4, A5; non-ferrous metals and alloys, plastic: brass.

Plugs are a separate type of fastener. They do not join anything, but only prevent liquid or gas from leaking out of process channels. The tapered plug complies with the German standard DIN 909 and other international standards. The part consists of a body with inch or metric thread and a hexagon head for an open-end wrench.

Plugs are fittings or a variant thereof. They are used to permanently close drain and other process openings at the ends of pipelines, as well as outlets from vessels. The part is reusable. They are usually manufactured by stamping. Some plugs are designed to work under high pressure and in aggressive conditions — in the chemical industry, at oil refining plants. They withstand extreme pressures in boilers producing process steam in large volumes. High-strength materials are used for such plugs: brass, stainless steels of grade A4 and A2, carbon and low-alloy steels.

By type and method of use, plugs are divided into welded flat, between-flange, flanged, elliptical, spherical, rotary and other types. Flanged plugs are used where there is a large temperature difference: they are made of a material practically inert to aggressive liquid and gas media, and are indispensable in the construction and operation of chemical and gas pipelines. The DIN 909 plug meets the requirements of the standard and can be produced from various materials for different purposes.

Standard DIN 909

Description: tapered threaded plug with hexagon head, metric fine or inch thread.

Materials:

• Steel 5.8
• Coated steel: electrogalvanized
• Stainless steel A1, A2, A3, A4, A5
• Non-ferrous metals, alloys, plastic: brass

Dimensions of threaded plug DIN 909, mm

d1	b js 16	e min	l js 16	s
M8×1
M10×1	8	7.66	12.5	7
M12×1.5	10	7.66	15	7
M14×1.5	10	9.76	15	7
M16×1.5	10	10.89	16	9
M18×1.5	10	10.89	16	10
M20×1.5	10	14.2	17	13
M22×1.5	10	14.2	17	13
M24×1.5	12	18.72	20	17
M26×1.5	12	18.72	20	17
M30×1.5	12	20.88	22	19
M36×1.5	15	26.17	27	24
M36×2	15	26.17	27	24
M38×1.5	15	26.17	27	24
M42×1.5	18	26.17	30	24
M48×1.5	20	32.95	35	30
M48×2	20	32.95	35	30
R 1/8”	8	7.66	12.5	7
R 1/4”	10	9.76	15	9
R 3/8”	10	10.89	16	10
R 1/2”	10	14.2	17	13
R 5/8”	12	16.2	20	14
R 3/4”	12	18.72	20	17
R 1”	12	20.88	22	19
R 1 1/4”	18	26.17	30	24
R 1 1/2”	20	32.95	35	30
R 1 3/4”	20	32.95	35	30
R 2”	22	39.85	37	30