
Rectangular Blanking Plugs
Rectangular blanking plugs are specialised snap-in fasteners designed to seal unwanted rectangular holes in panels, enclosures, and electrical boxes across UK industrial and commercial applications. These rectangular hole plugs are manufactured from UL94V-2 rated Nylon 6/6 material, providing excellent resistance to temperatures ranging from -40°C to 105°C. Unlike traditional round blanking plugs, rectangular plugs are specifically engineered for non-circular openings such as connector ports, power outlet cut-outs, and custom panel modifications. Each rectangular plug features integrated locking fingers that snap securely into place, ensuring reliable installation without the need for additional fasteners or adhesives. These snap-in rectangular plugs are widely used throughout British manufacturing, electronics, automotive, and construction industries to provide professional finishing, environmental protection, and safety compliance. The primary benefit to users is the ability to achieve a neat, flush finish whilst preventing debris, dust, moisture, and contaminants from entering sensitive equipment. Vital Parts stocks rectangular blanking plugs in multiple sizes to accommodate varying panel thicknesses and mounting hole dimensions, all specifically chosen to meet common UK market requirements including American standard connector port dimensions.
Available Materials and Style Options:
- UL94V-2 rated Nylon 6/6 - flame resistant and temperature stable
- Black finish as standard for professional appearance
- Multiple mounting hole widths from 13mm to 24.5mm
- Various mounting hole lengths from 9.5mm to 24.5mm
- Panel thickness compatibility from 0.64mm to 3.5mm maximum
- Different head dimensions to suit specific applications
- Overall heights ranging from 7.6mm to 10.5mm
Key Features and Benefits:
- Snap-fit installation with integrated locking fingers for secure, tool-free fitting
- UL94V-2 flame resistance rating ensures safety in electrical applications
- Temperature resistance from -40°C to 105°C suitable for both indoor and outdoor use
- Flush rectangular head design provides professional, seamless panel appearance
- Prevents ingress of dust, dirt, moisture, and other environmental contaminants
- Accommodates multiple panel thicknesses with secure retention
- Protects against accidental contact with sharp panel edges
- Easy removal for future access or modifications when required
- Cost-effective solution for finishing unused panel cut-outs
- Resistant to chemicals, oils, and common industrial solvents
Common UK Use Cases:
- Electrical control panels - sealing unused connector ports and switch cut-outs in industrial switchgear and distribution boards
- Electronics enclosures - blanking off spare rectangular slots in server racks, telecommunications cabinets, and instrumentation housings
- Automotive applications - covering access holes and unused ports in vehicle interior panels, engine bay components, and dashboard assemblies
- Manufacturing equipment - protecting machinery panels from contamination whilst maintaining clean aesthetics on production line equipment
- HVAC systems - sealing service access points in air handling units, ductwork, and climate control equipment throughout British commercial buildings
Related Vital Parts Products:
- Round blanking plugs for circular panel holes and standard snap-fit applications
- Snap fit plugs for threaded and panel holes from M10 to M42
- Rectangular tube inserts for finishing square and rectangular tubing ends
- Snap fit bushes for cable protection and wire insulation in panel holes
- Rubber grommets for cable management and sealing applications
Call Vital Parts:
For quick quotes, same-day dispatch, custom sizes, or bulk discounts, call our sales line on 01233 713 581. Businesses can register for a Vital Parts Business Account to benefit from priority shipping, trade pricing, free product samples, credit accounts, and a dedicated account manager.

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