Large Washer Bonding Studs

Bonding stud with a large washer base: the wide flange spreads peel and shear over a larger bonded area.

Key specifications

MaterialCarbon Steel / Stainless Steel
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. A large base reduces peel at the edge of the bond, which is where a bonded joint usually starts to fail. It also lowers the stress in the adhesive for a given load, so the joint tolerates more misalignment between stud and mating hole.

Material: Carbon Steel / Stainless Steel. The two washers are fitted as a pair with the cams facing each other.

Key featuresFeatures

Wide base reduces edge peel, the usual failure start point.
Conical washers maintain clamp force where thermal cycling relaxes the joint.
Double-toothed washers combine anti-rotation with load spreading.
65Mn spring steel quenched and tempered, with hardness and elasticity controlled.

Typical applicationsApplications

Pressure vessels and pipe flanges
Wind turbine towers and nacelles
Construction machinery structures

Selection notesSelection

Check that the base clears nearby features and that the panel can take the bonding area; a large base on a curved or narrow flange will not sit flat.

Frequently asked questionsFAQ

Why does a bonded joint fail at the edge?

Peel stress concentrates at the edge of the bond line when the joint is loaded off-axis. A larger base spreads that stress and delays the start of failure.

What matters during installation of the Large Washer Bonding Studs?

Fit the two washers as a pair with the cams facing each other. Wide base reduces edge peel, the usual failure start point.

Specifications

Material	Carbon Steel / Stainless Steel
Adhesive	Epoxy / Cyanoacrylate
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

Locking performance is verified by transverse vibration testing such as ISO 16130, recording preload decay.Alternative materials and finishes can be quoted side by side during sampling, so cost and corrosion resistance can be traded off explicitly.