DIN 127 Spring Lock Washer

The DIN 127 washer is a spring lock washer. It is not a flat disc, but a part with a split edge resembling a spring. The shape provides additional locking for bolted or screwed joints and reduces the risk of self-loosening due to vibration.

Application: construction, machine building, automotive industry. The diameter and size of the washer are selected to match the fastener it is used with. Standard: DIN, similar standards are also found.

Material: zinc-plated steel (corrosion protection) or stainless steel (enhanced resistance to external factors).

d	d1	d2	s	h type A	h type B
M2	2.1	4.4	0.5	-	1.2
M2.3	2.3	4.8	0.6	-	1.4
M2.5	2.6	5.1	0.6	-	1.4
M2.6*	3	5.2	0.6	-	1.4
M3	3.1	6.2	0.8	1.9	1.6
M3.5	3.6	6.7	0.8	1.9	1.6
M4	4.1	7.6	0.9	2.1	1.8
M5	5.1	9.2	1.2	2.7	2.4
M6	6.1	11.8	1.6	3.6	3.2
M7	7.1	12.8	1.6	3.6	3.2
M8	8.1	14.8	2	4.6	4
M10	10.2	18.1	2.2	5	4.4
M12	12.2	21.1	2.5	5.8	5
M14	14.2	24.1	3	6.8	6
M16	16.2	27.4	3.5	7.8	7
M18	18.2	29.4	3.5	7.8	7
M20	20.2	33.6	4	8.8	8
M22	22.5	35.9	4	8.8	8
M24	24.5	40	5	11	10
M27	27.5	43	5	11	10
M30	30.5	48.2	6	13.6	12
M33	33.5	53.2	6	13.6	12
M36	36.5	58.2	6	13.6	12
M39	39.5	61.2	6	13.6	12
M42	42.5	68.2	7	15.6	14
M45	45.5	71.2	7	15.6	14
M48	49	75	7	15.6	14
M52	53	82	8	18	16
M56	57	87	8	18	16
M64	65	95	8	18	16
M80	81	111	8	18	16
M90	91	121	8	18	16
M100	101	131	8	18	16

• on request

Designations:

d - nominal thread diameter of the fasteners

d1 - inner diameter of the washer

d2 - outer diameter of the washer, max.

s - thickness

h - height