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Rectangular steel mounting plate with tapped holes, countersunk holes and slotted adjustment holes
Close-up of tapped threaded holes and a countersunk hole in a steel mounting plate

Illustrative product image — manufactured to customer specification.

Plates & Profiles

Steel Mounting Plates — Drilled & Tapped to Drawing

Flat mounting plates with drilled, tapped, countersunk and slotted holes exactly where your drawing puts them — for motors, pumps, controls and equipment.

  • Hole typesThrough, tapped (metric threads), countersunk, counterbored on request, slotted
  • MaterialsMild steel, stainless steel, aluminium
  • ProcessesCNC plasma cutting, drilling, tapping, countersinking
  • ProfileRectangular, round or custom outline with cut-outs

Made to order · Price on application · One-offs and batch quantities

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A flat plate with the right holes in the right place

Mounting plates are simple parts with one requirement that matters: every hole has to line up with whatever bolts to it. We plasma cut the blank to size, then drill, tap, countersink or slot the holes to your drawing, so the plate goes on without opening holes out on site.

Tapped holes mean you can bolt straight into the plate without nuts behind — useful where you can't reach the back face. Slotted holes give you adjustment for belt tension, alignment or tolerance stack-up.

Typical mounting plates

Motor and gearbox mounting plates; pump and fan mounting plates; adapter plates between two bolt patterns; control and instrument plates; and fixing plates for frames, rails and enclosures.

Choose mild steel for general use, stainless for wet or washdown areas, or aluminium where weight matters.

Technical information

Hole typesThrough, tapped (metric threads), countersunk, counterbored on request, slotted
MaterialsMild steel, stainless steel, aluminium
ProcessesCNC plasma cutting, drilling, tapping, countersinking
ProfileRectangular, round or custom outline with cut-outs
QuantitiesOne-offs and repeat batches

Materials

  • Mild steel
  • Stainless steel
  • Aluminium

Processes

  • CNC plasma cutting
  • Drilling
  • Tapping
  • Countersinking

Customisation

  • Plate size and thickness
  • Hole positions and thread sizes
  • Slots for adjustment
  • Cut-outs and outline

Applications

  • Motor and gearbox mounts
  • Pump and fan mounting
  • Adapter plates between bolt patterns
  • Control panel and instrument mounting

How to order

Send your drawing (DXF, DWG or PDF) or a dimensioned sketch with the material, thickness and quantity. We'll check it, ask about anything unclear, and reply with a price and lead time. Once approved, parts are made in our Knowsley workshop for collection or UK delivery.

Questions we're often asked

Which thread sizes can you tap?

Common metric threads. Small threads such as M4 may be drilled and tapped as a secondary operation — list the sizes on your drawing and we'll confirm.

Can you match an existing plate?

Yes. Send dimensions or the original part and we'll reproduce it.

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Need mounting plates?

Send your drawing or sketch and we'll come back with a price and lead time.

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