Flat circular gaskets designed for reliable sealing and insulation, this pack combines nylon and PE rubber thickened insulation with a soft plastic finish. The gaskets are intended for use with fasteners across a range of sizes (M3 to M20) and come in a compact, flat form for easy installation and consistent performance. Each pack contains 50 pieces. Key attributes Size: inner diameter 18 mm, outer diameter 27 mm, thickness 1 mm; 50 pieces per pack Material: nylon gasket with PE rubber thickened insulation and soft plastic flat gasket surface Compatibility: suitable for M3, M4, M5, M6 to M20 screw and bolt applications Type: plastic circular gasket, flat form for stable seating and sealing Functionality: provides insulation, sealing, and a protective spacer in assemblies Performance and benefits Durable, lightweight gasket suitable for general sealing and insulation tasks Flat circular design promotes even compression and robust seating Material combination aims to balance resilience, insulation, and ease of use Pack of 50 pieces supports bulk use and replacement across multiple projects Applications and use cases Electrical and electronics enclosures: seal panel gaps around mounting holes to reduce dust entry and improve insulation Mechanical assemblies: act as spacers and seals between panels or housings using M3 to M20 fasteners Plumbing and fluid handling: provide a quicksealing barrier at joints where circular gaskets are appropriate Notes A versatile accessory for projects requiring a compact, padded circular gasket with a defined inner and outer diameter Each gasket is designed to fit a range of screw sizes (M3 to M20) and aligns with the stated size specification of 18x27x1 mm Pack integrity and quantity: 50 pieces per package for convenient stocking and repeated use