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US Style Rivet Nut Reduced Countersunk Half Hex Steel Zinc

US Style Rivet Nut Reduced Countersunk Half Hex fasteners with an open end are a form of internally threaded insert and are used in applications where material thickness is too thin to tap a conventional thread. Using rivet nuts creates a strong thread in thin sheets of material for high strength fastening from bolts and other threaded items.

The open end of these rivet nuts allow for a stud or male threaded component to thread through the rivet nut without limiting the length or protrusion of the male threaded part, whilst the reduced countersunk head allows the use of this rivet nut without extra hole preparation. They provide a low profile, flush fit to the application, enabling installation in post-painted or pre-coated applications without the damaging of a surface.

The part hex body is to fit into a hexagon hole, eliminating the potential problem of rivet nuts turning after installation, and for excellent lead-in for quick installation.

Installed using a special tool, with a threaded stud or nose that engages with the internal threads of the rivet nut. This pulls upwards, in turn deforming the unthreaded section of the rivet nut to expand under the reverse side of the material, providing a high strength permanent thread in thin sheet material.

US Style Rivet Nut Reduced Countersunk Half Hex fasteners are manufactured in Steel Zinc as standard, with sizes ranging from M3 to M10.

Non-standard sizes, materials and finishes are available to order as specials, including small volume manufacture, modifications and custom parts made to drawings.
rivet-nut-reduced-countersunk-half-hex-steel-zinc-technical-drawing

Technical Information & Available Sizes
Thread Diameter Grip Range
(mm)
Hole A/F
(mm)
Body A/F
(mm)
Head Diameter
b (mm)
Head Thickness
k (mm)
Length
L (mm)
M4 0.5 – 2.0 6.4 6.35 7.0 0.4 10.4
M5 0.5 – 3.0 7.2 7.1 8.1 0.5 10.4
M6 0.5 – 3.0 9.6 9.5 10.5 0.5 14.5
M8 0.7 – 3.2 10.7 10.5 11.5 0.6 16.0
Size not listed? Please make an enquiry – we may be able to provide it.

 

Metric Hole Technical Information & Available Sizes
Thread Diameter Grip Range
(mm)
Hole A/F
(mm)
Body A/F
(mm)
Head Diameter
b (mm)
Head Thickness
k (mm)
Length
L (mm)
M3 0.5 – 1.5 5.1 4.9 6.0 0.5 9.3
M3 1.5 – 2.5 5.1 4.9 6.0 0.5 10.0
M4 0.5 – 2.0 6.1 5.9 7.0 0.5 10.0
M5 0.5 – 3.0 7.1 6.9 8.0 0.5 13.0
M6 0.5 – 3.0 9.1 8.9 10.0 0.6 16.0
M8 0.7 – 3.0 11.1 10.9 12.0 0.6 16.5
M10 0.8 – 3.5 13.1 13.0 14.0 0.8 20.0
Size not listed? Please make an enquiry – we may be able to provide it.

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