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OnBuy.com£7.28Visit shop A2 Stainless Steel Button Head Bolts Iso 7380 Hex Socket Allen Dome Head Screws M3 To M10 5056523231624
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B&Q£10.08Visit shop B&Q - Hex Socket M4X16mm ( Pack Of: 20 ) Button Head Bolts Screws A2 304 Stainless Steel (Iso 7380) Fully Threaded
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These SS8 Hex Socket Button Head Bolts Screws (M5X25mm) are designed for professionals and DIY enthusiasts needing reliable fasteners. Their key benefit is superior durability and corrosion resistance from A2 304 stainless steel, suitable for demanding environments. A potential caveat is the need for a specific allen wrench for installation and removal. This guide covers their features, applications, and care.
| Colour | Silver |
|---|---|
| Model Part Number | M5X25mm |
| Brand | SS8 |
Typically, an M5 socket button head bolt requires a 3mm allen wrench (hex key).
Yes, the A2 304 stainless steel construction provides excellent resistance to rust and corrosion, making them suitable for outdoor applications.
It is generally recommended to use manual hand tools like an allen wrench for better control and to prevent over-tightening or stripping the bolt head, especially with smaller sizes like M5.
A2 stainless steel (like 304) is standard grade, suitable for most general applications. A4 stainless steel (like 316) contains molybdenum, offering superior resistance to pitting and corrosion, making it ideal for marine or highly aggressive environments.
The designation 'M5X25mm' means the bolt has a metric thread size of M5 (5mm nominal diameter) and a length of 25mm, measured from the underside of the head to the tip of the bolt.
While stainless steel can be welded, these specific bolts are designed for mechanical fastening. Welding may affect their material properties and corrosion resistance. It's not their intended use.
Ensure you are using the correct size allen wrench. Apply steady, even pressure and avoid over-tightening. If the head is already damaged, you may need to use a bolt extractor.
Check that the bolt is aligned correctly with the hole or nut. Ensure the threads on both the bolt and the receiving component are clean and undamaged. Do not force the bolt; back it out and re-align.
While A2 304 stainless steel is highly resistant, prolonged exposure to certain chemicals or environments can cause surface staining or minor corrosion. Clean the affected area with a mild detergent and water. For severe cases, consult a specialist for appropriate treatment.
Setup: These bolts require a corresponding allen wrench (hex key) of the correct size to engage the socket head for tightening or loosening. Ensure the mating surface and hole are clean and free of debris before installation. Use with appropriate nuts or in tapped holes.
Compatibility: Compatible with standard M5 nuts and M5 tapped holes. The M5 thread size and 25mm length are specific dimensions; ensure these match your project's requirements. Suitable for use with washers if needed to distribute load.
Care: While stainless steel offers excellent corrosion resistance, it is not entirely immune to damage. Clean the bolts periodically with a damp cloth to remove dirt and grime. Avoid using abrasive cleaners or harsh chemicals that could scratch the surface. In highly corrosive environments, occasional inspection for any signs of degradation is recommended.
