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Flat Head Half Hex Rivet Nut

Flat head half-hex rivet nut: part of the flange is hexagonal, so a wrench or fixture can hold it against rotation during setting.

Key specifications

MaterialCarbon steel / Stainless 304/316
FinishZinc plated / Plain
Installationset from one side with a rivet-nut tool
StandardGB/T 17880, ISO 15977
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. A half-hex flange gives the setting tool something to grip on part of the circumference. That matters most on thin sheet, where the nut tends to spin with the setting tool because there is little material for the bulge to grip.

Material: Carbon steel / Stainless 304/316, with zinc plated / plain as the standard finish. It is set from one side with a rivet-nut tool.

Key featuresFeatures

Half-hex flange can be held by a fixture to stop spinning on thin sheet.
Setting from one side leaves a bulge behind the sheet, so box sections and tubes need no rear access.
The 6H internal thread takes repeated bolt cycles, and because nothing is welded the sheet keeps its flatness.
The flat head sits on the surface, the countersunk version sinks flush, and the hex head gives a wrench a second way to hold it.

Typical applicationsApplications

Enclosures and sheet-metal cabinets
Automotive body and chassis attachments
Rail interior and equipment brackets

Selection notesSelection

Choose barrel length from sheet thickness, head style from the mounting face, then size from load; if thickness is outside the grip range, change the part rather than raising setting force.

Frequently asked questionsFAQ

Half hex or full hex rivet nut?

Half hex where the tooling can reach the flats: it holds better and keeps the flange outline small. Full hex where there is no room for a fixture and the hex has to bear against the hole wall instead.

What matters during installation of the Flat Head Half Hex Rivet Nut?

Set it from one side with a rivet-nut tool. Half-hex flange can be held by a fixture to stop spinning on thin sheet.

Specifications

Material	Carbon steel / Stainless 304/316
Finish	Zinc plated / Plain
Standard	GB/T 17880, ISO 15977
Head style	hex head
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

Internal threads are gauged 6H on every part, with destructive bulge tests sampled.We recommend a pilot assembly at the actual torque and mating part before locking the process parameters for volume.