Knurled Panel Clinch Thumb Screw with Additional Panel-Interface Seal

Knurled panel thumb screw in the sealing range: the panel-retained screw also carries a seal at the panel interface.

Key specifications

MaterialStainless Steel / Brass
Installationpressed into a prepared hole (single side)
StandardGB/T 90.1, customer drawing
Typical substratepanels, covers and access doors
Key inspectionspush-out, perpendicularity, captive function

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Product overviewOverview

A clinching screw is a screw and a clinch base in one part: the base is pressed into the panel so the sheet flows into its groove, while the threaded portion protrudes to hold the cover. Retention and sealing pull in opposite directions here. Retention needs a tight clinch in the panel, while sealing needs an even compression around the flange, and an uneven clinch tilts the flange and loads the seal on one side.

Material: Stainless Steel / Brass. It is pressed into a prepared hole from one side.

Key featuresFeatures

An uneven clinch tilts the flange and unloads part of the seal.
Zinc-plated steel or stainless; black oxide or PVD for visible parts.
Because screw and base are assembled as one unit, the fastener remains captive to the panel through every service cycle.
The knurl anchors by cold flow of the panel metal, which is what holds push-out and torque values stable over repeated use.

Typical applicationsApplications

Telecom rack front and rear panels
Instrument housings
Elevator control cabinet doors

Selection notesSelection

Panel thickness sets screw length; too short leaves too few engaged threads, too long may contact internal components.

Frequently asked questionsFAQ

Can a retained thumb screw be sealed at the panel?

It can, provided the clinch is even all round. The seal sits on the flange face, so any tilt from an uneven press shows up as a leak on the high side.

What matters during installation of the Knurled Panel Clinch Thumb Screw?

Press it into a prepared hole from one side. An uneven clinch tilts the flange and unloads part of the seal.

Specifications

Material	Stainless Steel / Brass
Sealing Method	Pre-applied sealant / O-ring
Standard	GB/T 90.1, customer drawing
Head style	pan head
Installation	pressed into a prepared hole (single side)
Typical substrate	panels, covers and access doors
Key inspections	push-out, perpendicularity, captive function

Manufacturing and inspection

Threads are gauged 6g; spring versions undergo a 1,000-cycle compression test.Material certificates and dimensional records accompany each lot; material and dimensional records are supplied per batch.