Connection Types Wiki · Other connections

Slide-in Caster Plate Socket

A female receiver bracket featuring folded side lips forming a channel track that accepts a slide-in rectangular caster mounting plate, secured in place by a removable locking pin.

Illustration of a Slide-in Caster Plate Socket
Gender
female
Connects by
insertion, fastened
Regions
North America, worldwide

How it connects

The male caster plate slides horizontally into the channel under the opposed folded flange lips until seated against a stop, and is locked in place by inserting a wire lock pin or cotter pin through aligned tabs.

Male and female halves

Female receiver channel with folded retaining lips that slides over and encloses the male flat caster bracket plate.

Usually connects to

  • Slide-In Caster Plate Male
  • Workbench Caster Mounting Plate

Common sizes

  • Nominally 2-3/4 in x 3-3/4 in plate footprint accepting ~3-1/2 in x 1-15/16 in x 1/8 in caster mounting flanges.

Where it is used

woodworkingworkbenchesworkshop equipmentmaterial handling

Variations

  • Horizontal slide-in with removable pin
  • Spring-clip quick change plate

How to recognise it

Stamping of heavy gauge sheet steel (approx. 2-3/4 x 3-3/4 in) with two countersunk mounting holes, opposed top/bottom or lateral folded lips forming a slide channel, an end stop tab, and a cross-drilled tab or flange holding a locking pin.

Often confused with

Confused withHow to tell them apart
Channel StrutChannel strut (e.g. Unistrut) is a continuous structural framing channel with inward curled lips for spring nuts, not a discrete plate-mounting bracket with a pin lock.
Caster Stem SocketStem sockets accept cylindrical or grip-neck caster stems inserted vertically, rather than flat rectangular caster mounting plates sliding horizontally.

Also called

quick-release caster platequick-release workbench caster mounting bracketquick-change caster receiver plate

Good to know

Popularized by woodworking brands like Rockler (item 53004) and POWERTEC (item 71132) to quickly attach and detach retractable workbench casters across multiple tools or workbenches.

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