Self-Clinching Fasteners

Self-clinching fasteners are pressed permanently into thin sheet metal, providing load-bearing threads without welding or tapping. A standard solution for enclosures, equipment frames and electronic chassis – fast, clean and neat.

Product range

Self-clinching nuts

Metric M2 – M12 · Inch #2-56 – 1/2"

Internal threads in thin sheets; steel, stainless, aluminium, locking and floating types.

Parameter	Value
Thread	M2 – M12 · #2-56 – 1/2"-13
Sheet thickness	From 0.8 mm (part dependent)
Material	Zinc-plated steel (steel, aluminium sheet) · 300 stainless (aluminium, mild steel) · hardened 400 stainless (stainless sheet)
Types	Standard, self-locking, floating, blind (closed-end)
Installation	Parallel squeeze into punched / drilled hole

Hole size and minimum sheet thickness per part data sheet – provided with the quotation. Unit: mm.

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Self-clinching studs

M2.5 – M8

Permanent external threads on the sheet, replacing welded studs.

Parameter	Value
Thread	M2.5 – M8
Length	6 – 35 mm
Sheet thickness	From 1.0 mm (part dependent)
Material	Zinc-plated steel, 300 / 400 stainless
Types	Flush head, concealed head

The stud head sits flush with the sheet after installation. Unit: mm.

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Self-clinching standoffs

Thru-hole · Blind

Support PCBs and space panels; through-hole or blind types.

Parameter	Value
Thread	M2.5 · M3 · M3.5 · M4 · M5
Length	3 – 25 mm
Types	Through-threaded, blind threaded, unthreaded
Material	Zinc-plated steel, 300 stainless, aluminium
Sheet thickness	From 1.0 mm (part dependent)

Used to mount PCBs and space panels at a fixed distance. Unit: mm.

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Self-clinching pins

Ø1.6 – Ø6 mm

Locating pins, pivots or hanger pins fixed in sheet metal.

Parameter	Value
Diameter	Ø2 – Ø6 mm
Length	4 – 25 mm
Material	Hardened steel, hardened 400 stainless
Types	Tapered-tip locating pin, cylindrical pin
Sheet thickness	From 1.0 mm (part dependent)

Accurately locates panels during assembly without welding. Unit: mm.

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Captive panel screws

Captive

Stay attached to the panel when loosened – easy maintenance.

Parameter	Value
Thread	M3 – M8
Head	Knurled thumb knob, Phillips, hex socket
Material	Zinc / nickel-plated steel, 300 stainless, aluminium knob
Installation	Press-in, flare-in or floating mount
Suited for	Cabinet covers and panels opened frequently

Screws stay with the panel when loosened – no lost hardware. Unit: mm.

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Fastener insertion presses

Press

Dedicated presses and tooling for consistent, high-volume installation.

Parameter	Value
Type	Hydraulic, air-over-hydraulic, bench presses
Range	Clinch nuts, studs, standoffs, pins M2 – M12
Force	Adjustable, consistent per part
Feeding	Manual or automatic feeding
Tooling	Upper / lower tooling per fastener size

Machine selection based on volume and panel size. Unit: mm.

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Specifications & scope of supply

Thread systems	Metric (M2 – M12) and inch (UNC / UNF)
Materials	Zinc-plated carbon steel, 300 / 400 series stainless, aluminium
Panel materials	Steel, stainless, aluminium – selected by sheet thickness and hardness
Installation	Parallel squeeze with hydraulic or pneumatic press
Support	Advice on part selection, hole size and installation force

Typical applications

Electrical and control enclosures
Electronic chassis and housings
Thin-sheet machine frames and covers
PCB mounting and component panels

Product photo

Frequently asked questions

Can self-clinching fasteners be used in stainless steel sheet?

Yes, but hardened stainless fasteners (typically 400 series) are required because the fastener must be harder than the sheet. We will advise the right part for your sheet thickness.

Is a dedicated press required?

They need a steady, parallel squeeze – a hydraulic press or a dedicated insertion press. Hammering is not recommended as it causes misalignment and lower retention.

What hole size is needed in the panel?

Each part has its own hole size and minimum sheet thickness. We provide these specs when confirming the part so your designers can add them to the drawing.

Request for quotation

Start with your requirements

Send part numbers, quantities or drawings. We will get back to you to clarify specs and propose the right solution.

Hotline0968 623 881

Emailsales@duchuyintech.com

Head officeNo. 19, Lane 179/169 Vinh Hung Street, Vinh Hung Ward, Hanoi, Vietnam

BranchNo. 46, Lane 64, Thach Ban Street, Long Bien Ward, Hanoi, Vietnam