Product Center · Pre-applied Adhesives

Integrated Flange Bolt with Pre-applied Adhesive

Flange bolt with pre-applied adhesive on the flange face: the flange spreads clamp load and the adhesive seals the joint face.

Key specifications

Installationtorque wrench with teeth facing the clamped part
StandardGB/T 3098.1, ISO 16130 (transverse vibration)
Typical substratechassis, structures, construction machinery
Key inspectionstooth form, locking performance, hardness
Head TypeFlange
Head styleflanged

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Product overviewOverview

A serrated flange locks by engagement rather than by friction. A flange increases the bearing area, which lowers the surface pressure for the same preload and reduces the chance of denting a thin or painted panel. The adhesive sits between flange and panel, so it seals across the full flange width rather than only at the thread.

installed by torque wrench with teeth facing the clamped part.

Key featuresFeatures

Flange bearing area lowers surface pressure on thin panels.
Serrated flange presses into the clamped part for mechanical locking.
Unidirectional and bidirectional tooth patterns for different load directions.
Large flange area lowers bearing stress on thin panels.

Typical applicationsApplications

Automotive chassis and suspension
Construction machinery structures
Rail equipment brackets

Selection notesSelection

Keep the flange clear of nearby ribs and radii; a flange that bridges a radius applies load on an edge and the adhesive seal is lost at that edge.

Frequently asked questionsFAQ

Why use a flange bolt rather than a washer?

A flange is captive and cannot be left out, and it presents a defined bearing area. A loose washer depends on the operator picking it, and a missed washer is a common cause of a failed seal.

What matters during installation of the Integrated Flange Bolt with Pre-applied Adhesive?

Seat the teeth against the clamped part and tighten to the specified torque. Flange bearing area lowers surface pressure on thin panels.

Specifications

Head Type	Flange
Standard	GB/T 3098.1, ISO 16130 (transverse vibration)
Head style	flanged
Installation	torque wrench with teeth facing the clamped part
Typical substrate	chassis, structures, construction machinery
Key inspections	tooth form, locking performance, hardness

Manufacturing and inspection

Tooth angle, height and distribution are checked optically.We recommend a pilot assembly at the actual torque and mating part before locking the process parameters for volume.