DIN 470 Steel Blanking Washer

The DIN 470 blanking washer is shaped as a solid disc, not flat but uniformly convex. In cross-section it looks like an incomplete hemisphere. Blanking washers are most often made of carbon steel. For corrosion protection, the parts are zinc-plated either in plating baths or by hot-dip galvanizing.

Besides carbon steel alloys, washers are also produced from chromium-nickel steel grades A2 and A4 (with a molybdenum addition). These fasteners work under conditions of high humidity and aggressive environments. Stainless washers retain their properties over a long service life. Brass is the third popular material used for making fasteners.

The blind blanking washer is used in most industrial sectors of the economy: mechanical engineering, construction, plumbing work, instrument manufacturing, and other fields. The part is installed in various assemblies where a strong and reliable blanking plug is needed.

FLOK supplies the full size range of DIN 470 steel blanking washers in quantities sufficient to meet customer demand.

Dimensions of DIN 470 steel blanking washers, in mm:

d	h	r	s
10	2.67	12	1.6
12	2.77	16	1.6
14	2.94	19	1.6
16	3.11	22	1.6
18	3.28	25	1.6
20	3.45	28	1.6
25	4.38	34	2
28	4.53	40	2
30	4.77	42	2
32	4.95	45	2
34	5.11	48	2
36	5.36	50	2
38	5.6	52	2
40	5.7	56	2
42	5.8	60	2
45	6.15	63	2
48	6.38	68	2
50	6.62	70	2
52	6.66	75	2
56	7.06	80	2
60	7.47	85	2