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B&Q£5.33Visit shop B&Q - M4 Cylindrical Zinc-Plated Carbon Steel Set Screw & Nut (Dia)4mm (L)12mmPack Of 20
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This pack of 20 Diall M4 cylindrical set screws and nuts is designed for DIY enthusiasts needing reliable fasteners for various projects. Its key benefit is the durable carbon steel construction and zinc plating, offering good corrosion resistance for general use. A potential limitation is the M4 size, which may be too small for heavy-duty applications.
| Brand | Diall |
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They are constructed from durable carbon steel.
Zinc plating provides a protective coating that helps prevent rust and corrosion.
They have an M4 diameter and are 12mm in length.
This pack contains 20 cylindrical set screws and 20 nuts.
The zinc plating offers some corrosion resistance, but for long-term outdoor use or in very humid environments, stainless steel fasteners might be more suitable.
No, these M4 fasteners are best suited for light to medium-duty DIY projects and are not recommended for heavy load-bearing applications.
Ensure both the screw and nut are M4 size and are clean. Check for any debris or damage on the threads. Try gently rotating the nut back and forth to clear the threads.
Use the correct size wrench or driver for the nut. Apply steady, even pressure. If the head is already damaged, attempt to grip the nut with pliers and turn it slowly.
This can occur with prolonged exposure to moisture. For minor surface rust, you may be able to clean it with a wire brush. For extensive corrosion, the fastener may need replacement. Store remaining fasteners in a dry place.
Setup: These cylindrical set screws and nuts are designed for direct use. The M4 diameter means they will fit into pre-tapped holes or be used with standard M4 nuts. Ensure you have an appropriate tool, such as a wrench or pliers, to tighten the nuts securely.
Compatibility: The M4 size is compatible with other M4 threaded components. They are best suited for use with materials like wood, plastic, and lighter gauge metals. Always check that the material you are fastening can support an M4 thread.
Care: To maintain the integrity and appearance of the zinc plating, store the fasteners in a dry environment. Avoid exposure to excessive moisture or harsh chemicals, which can lead to corrosion over time. Clean with a dry cloth if dust accumulates.
