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Double-Sided Serrated Conical Washer

Conical washer serrated on both faces: the cone keeps preload and the teeth resist rotation on both sides of the washer.

Key specifications

MaterialSpring Steel 65Mn
Installationfitted as a pair with cams facing
StandardGB/T 94.1, ISO 16130 (transverse vibration)
Typical substratewind, construction and rail structures
Key inspectionstooth height, hardness, locking performance

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Product overviewOverview

Wedge-locking washers work in pairs. Serrated on both faces means the washer grips the part below and the head above, so rotation is resisted at two interfaces instead of one. The teeth are shallow and are intended to resist, not to cut, so the joint stays releasable.

Material: Spring Steel 65Mn. The two washers are fitted as a pair with the cams facing each other.

Key featuresFeatures

Teeth on both faces resist rotation at two interfaces.
65Mn spring steel quenched and tempered, with hardness and elasticity controlled.
Black oxide, zinc or zinc-aluminium coatings for the required corrosion class.
Cam geometry converts loosening into axial lift, so locking is independent of friction.

Typical applicationsApplications

Rail bogies and running gear
Automotive chassis and driveline
Pressure vessels and pipe flanges

Selection notesSelection

Use on joints that must stay releasable; for a permanent joint a tooth pattern that bites deeper is more effective but damages the surface on removal.

Frequently asked questionsFAQ

Does a double-sided serrated washer damage the part?

It leaves a light tooth pattern rather than a cut. The teeth are shallow by design so that the joint can be opened and re-closed without repairing the surface.

What matters during installation of the Double-Sided Serrated Conical Washer?

Fit the two washers as a pair with the cams facing each other. Teeth on both faces resist rotation at two interfaces.

Specifications

Material	Spring Steel 65Mn
Surface Treatment	Black oxide / Zinc-plated
Standard	GB/T 94.1, ISO 16130 (transverse vibration)
Installation	fitted as a pair with cams facing
Typical substrate	wind, construction and rail structures
Key inspections	tooth height, hardness, locking performance

Manufacturing and inspection

Salt spray to GB/T 10125 for coated versions.Material certificates and dimensional records accompany each lot; material and dimensional records are supplied per batch.