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Knurled Panel Clinch Thumb Screw

Knurled panel thumb screw pressed into a panel and retained there, so the fastener stays with the cover when it is removed.

Key specifications

MaterialCarbon Steel / Stainless Steel
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. The screw is held in the panel by a clinched knurl and a spring element, which lets it turn freely but not fall out. Retention force has to be low enough for finger operation and high enough that the screw does not drop out during handling, so it is specified as a range rather than a minimum.

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

Key featuresFeatures

Retained in the panel: finger operation without a loose part.
Screw and base are one part, so hardware stays with the panel during service.
Cold-flow anchorage gives stable push-out and torque resistance.
Thread size and length made to panel thickness and available space.

Typical applicationsApplications

Server faceplates and covers
Industrial access doors
Telecom rack front and rear panels

Selection notesSelection

Specify both retention force and operating torque; optimising only for retention makes the screw hard to turn by hand.

Frequently asked questionsFAQ

Why specify retention as a range?

Too little and the screw falls out during handling, too much and it cannot be turned by finger. The usable window is between those two, so both limits are stated.

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

Press it into a prepared hole from one side. Retained in the panel: finger operation without a loose part.

Specifications

Material	Carbon Steel / Stainless Steel
Type	Rivet nut
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

Push-out and torque tests after pressing are sampled.We recommend a pilot assembly at the actual torque and mating part before locking the process parameters for volume.