DIN 1440 Reinforced Flat Washer for Clevis Pin

The equivalent of the German DIN 1440 standard, under which the reinforced flat washer for clevis pins is manufactured, is the European standard ISO 8738. It is a metal product in the form of a closed ring with various values of inner and outer diameter, as well as thickness.

From the name of the fastener it is clear that it works in pairs with clevis pin fasteners. When purchasing, their parameters should be matched precisely. The inner bore diameter of the DIN 1440 washer must exactly match the outer dimension of the pin shaft.

What role does the reinforced flat washer for clevis pins perform

This product performs a locking function, which is related to withstanding fairly high loads. For this purpose, the DIN 1440 standard specifies that the washer be reinforced, with increased thickness dimensions. Carbon and stainless steels, brass, copper, and high-strength plastic are used as raw materials.

Products made of alloyed metals feature anti-corrosion protection via galvanic zinc plating. Thanks to its dimensions, the DIN 1440 washer significantly increases the bearing area of bolted fasteners and prevents them from unscrewing spontaneously even under strong vibrational loads. The fastener is used in various fields of economic activity: from heavy machine building and construction to home workshops.

FLOK supplies reinforced washers for clevis pins in standard sizes, and also accepts advance orders for products that are not frequently in demand. Wholesale and retail supply across the entire territory of the Russian Federation.

Dimensions of the DIN 1440 reinforced flat washer (stainless steel A2) in mm:

d₁	d₂	h
3	6	0.8
4	8	0.8
5	10	0.8
6	12	1.6
7	14	1.6
8	16	2
10	20	2.5
12	25	3
14	28	3
16	28	3
18	30	4
20	32	4
22	34	4
23	36	4
24	38	4
25	40	4
26	40	5
27	40	5
28	42	5
30	45	5
32	50	5
33	50	5
35	52	6
36	52	6
40	58	6

d₁	d₂	h
5	10	0.8
6	12	1.6
7	14	1.6
8	15	2
10	18	2.5
12	20	3
14	22	3
16	24	3
18	30	4
20	30	4
22	34	4
24	37	4
27	39	5
30	44	5
33	47	5
35	52	6
36	52	6
40	58	6
45	62	7
50	68	8
55	75	9
60	80	9
65	90	9
70	95	10
75	100	10
80	110	12
85	110	12
90	115	12
100	125	14