Fail Safe Two Fold Self Locking Washers

Fail safe two fold self locking washers are specialized fastener components designed to provide exceptional resistance against loosening under vibration and dynamic loads. For over two decades, Xiaoguo® has built a reputation for reliability and precision among manufacturers and industry partners alike.

Model:DIN 25201

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Product Description

Fail safe two fold self locking washers are typically made from high-carbon steel (such as SAE 1070 or 1095) or alloy steel. These materials provide the washers with the necessary elastic properties for proper operation, while also imparting the high tensile strength required for reliable operation in a wide range of operating conditions. Spring steel's natural ability to bounce back lets the tabs bend a lot when being put in, creating the important locking force that resists turning. The carbon in them makes the steel hard enough so the little ridges can really dig into surfaces. Steel fail safe two fold self locking washers are strong enough for regular use and for situations where there's a lot of stress.

Product Benefits:

If you need these fail safe two fold self locking washers to resist rust better in tough places—like on boats, in chemical plants, or where food is processed—they're often made from austenitic stainless steels, such as A2 (304) or A4 (316).

These stainless steel locks are not as strong as carbon steel, but they are flexible enough to lock things tightly. They are also rust-resistant and not easily damaged, so they can be used for a long time even in humid or other harsh environments.

Mon	Φ8	Φ10	Φ12	Φ14	Φ16	Φ18	Φ20	Φ22	Φ24	Φ27	Φ30
d max	8.8	10.9	13.2	15.4	17.2	19.7	21.6	23.6	25.5	28.6	31.6
d min	8.6	10.5	12.8	15	16.8	19.3	21.2	23.2	25.1	28.2	31.2
dc max	16.9	21.3	25.7	31	31	34.8	39.3	42.3	48.8	48.8	58.8
dc min	16.3	20.7	25.1	30.4	30.4	34.2	38.7	41.7	48.2	48.2	58.2
H max	2.25	2.25	3.25	3.45	3.45	3.45	3.45	3.45	3.45	6.8	6.8
H min	1.75	1.75	2.75	2.95	2.95	2.95	2.95	2.95	2.95	6.3	6.3

Can you provide documented proof that your fail safe two fold self locking washers meet DIN 25201 vibration resistance standards?

Yep, for sure. Our fail safe two fold self locking washers go through tough Junker vibration tests, following DIN 25201. We’ve got full test reports that show they always do better than what’s required. They hold up better against loosening from vibrations than a lot of other options, so the joints stay secure for a long time.