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Large Flange Head Knurled Rivet Nut

Large flange knurled rivet nut: the wide head spreads surface pressure on thin panels and the vertical knurl grips the hole wall.

Key specifications

MaterialCarbon steel / Aluminum
FinishZinc / Nickel
Installationset from one side with a rivet-nut tool
StandardGB/T 17880.2
Typical substratesheet 0.5–3 mm, extrusions, castings
Key inspectionsbulge formation, thread gauging, setting load

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Product overviewOverview

A rivet nut combines a thread and a rivet in one part: the barrel is threaded inside, and the tail is a deformable wall. Increasing the head diameter lowers the surface pressure for the same clamp load, so appliance panels and thin aluminium are not dented. The knurl runs along the barrel and forms several lines of engagement with the hole wall, giving more torque resistance than a smooth barrel.

Material: Carbon steel / Aluminum, with zinc / nickel as the standard finish. It is set from one side with a rivet-nut tool.

Key featuresFeatures

Wide head lowers surface pressure; vertical knurl resists rotation.
Zinc-plated carbon steel or 304/316 stainless, chosen to the environment.
Grip range and hole size must match the size table; an oversized hole reduces clamp.
Single-side installation with a back-side bulge, suited to closed sections.

Typical applicationsApplications

Rail interior and equipment brackets
Battery pack enclosures
Appliances and elevator panels

Selection notesSelection

Keep the head diameter inside the clearance circle of the fixing point, and check that the head does not cover an adjacent hole on a narrow panel.

Frequently asked questionsFAQ

Why does a large head protect a thin panel?

The same clamp load spread over a larger bearing area gives lower surface pressure, so the panel is not dented or bulged around the fixing.

What matters during installation of the Large Flange Head Knurled Rivet Nut?

Set it from one side with a rivet-nut tool. Wide head lowers surface pressure; vertical knurl resists rotation.

Specifications

Material	Carbon steel / Aluminum
Finish	Zinc / Nickel
Standard	GB/T 17880.2
Head style	flanged
Installation	set from one side with a rivet-nut tool
Typical substrate	sheet 0.5–3 mm, extrusions, castings
Key inspections	bulge formation, thread gauging, setting load

Manufacturing and inspection

Coating thickness follows GB/T 5267.1 and salt spray GB/T 10125.Material certificates and dimensional records accompany each lot; material and dimensional records are supplied per batch.