EPDM-sealed washer with rubber gasket

The EPDM-sealed washer is made of two different materials. The top layer is made of chromium-nickel austenitic steel grade A2. The lower part of the product is a gasket made of weather-resistant, long-lasting EPDM rubber. The steel part of the washer has a slightly spherical shape, which allows the fastener to sit firmly on the base surface without damaging it. This type of washer both reinforces and seals the fastening joint.

The EPDM-sealed washer has an annular shape with an inner diameter from 5.2 mm to 8.4 mm and an outer diameter from 14 mm to 287 mm. Some manufacturers replace EPDM rubber with low-cost ordinary rubber, which is not always justified. EPDM material has better elasticity and does not change consistency when compressed. It is UV-resistant and contains no sulfur or sulfur compounds.

Weather-resistant EPDM rubber withstands temperature fluctuations in the range from -40°C to +90°C. Washers with an EPDM or rubber seal are used for outdoor work, in particular for fastening roofing materials.

EPDM-sealed washer

Tuote	D/d	s
		1.5	2	3
EPDM/Zn	12/5.1
EPDM/Al	14/5.2
EPDM/Zn	16/6.8

d1	d2	h1	h2
4.8	12	0.9-1.1	2.3-2.7
4.8	14	0.9-1.1	2.3-2.7
5.2	14	0.9-1.1	2.3-2.7
5.3	12	0.9-1.1	2.3-2.7
5.3	16	0.9-1.1	2.3-2.7
5.3	19	0.9-1.1	2.3-2.7
6.2	16	0.9-1.1	2.3-2.7
6.7	22	0.9-1.1	2.3-2.7
6.7	29	0.9-1.1	2.3-2.7
6.8	16	0.9-1.1	2.3-2.7
6.8	19	0.9-1.1	2.3-2.7
6.8	25	0.9-1.1	2.3-2.7
8.4	16	0.9-1.1	2.3-2.7
8.4	19	0.9-1.1	2.3-2.7
8.4	22	0.9-1.1	2.3-2.7
8.4	25	0.9-1.1	2.3-2.7
8.4	29	0.9-1.1	2.3-2.7
10.5	25	0.9-1.1	2.3-2.7
10.5	29	0.9-1.1	2.3-2.7
13.0	29	0.9-1.1	2.3-2.7