Socket Screws Cap Head BZP - M6 x 20

Socket Screws Cap Head BZP 8.8 M6 x 20 Pack of 100. These screws are made from zinc plated steel a...

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B&QB&Q - Socket Screws Cap Head Bzp 8.8 M3 X 8 Pack Of 200
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Product Information

Full details

This guide is for professionals and DIY enthusiasts needing robust fastening solutions. The Van Line HCZ620 Socket Screws offer a reliable M6 x 20 connection with a bright zinc plated finish for corrosion resistance, ideal for various assembly tasks. However, ensure the M6 size is appropriate for your specific application before purchase.

All features

Model Part NumberHCZ620
BrandVan Line

Extended Product Information

FAQs

What is the difference between Grade 8.8 and Grade 12.9 socket screws?

Grade 12.9 socket screws, like the Van Line HCZ620, offer significantly higher tensile strength and hardness compared to Grade 8.8, making them suitable for more critical and high-stress applications.

What tool do I need to install these screws?

You will need a 5mm hex key (also known as an Allen wrench or Allen key) to install these M6 socket head cap screws.

Are these screws suitable for outdoor use?

The bright zinc-plated finish offers good corrosion resistance for moderate outdoor exposure. For prolonged or harsh outdoor environments, stainless steel alternatives are generally recommended.

What does 'BZP' stand for?

BZP stands for Bright Zinc Plated, indicating the type of protective coating applied to the steel screws.

Can I use these screws with lock nuts?

Yes, these screws are fully compatible with standard M6 lock nuts, provided the total length of the screw is sufficient to engage both the threaded component and the lock nut.

How many screws are in a pack?

This specific product, HCZ620, comes in a pack of 100 screws.

Troubleshooting

Screw will not thread properly

Check that the hole is correctly tapped for an M6 thread and that there are no obstructions. Ensure the screw is not cross-threaded. Verify the thread pitch and size match the intended mating part.

Hex key slips or does not engage fully

Ensure you are using the correct size hex key (5mm). The socket head might be damaged or worn; inspect the screw head for debris or deformation. Use a high-quality hex key for best engagement.

Corrosion observed on the screw head

The BZP finish offers protection, but prolonged exposure to harsh chemicals or moisture can lead to rust. Clean the affected area and consider using a protective coating if the environment is particularly corrosive. For extreme conditions, stainless steel variants may be more suitable.

Pros and Cons

Pros

  • High tensile strength due to Grade 12.9 specification.
  • Durable and corrosion-resistant due to zinc plating.
  • Secure fastening with hex socket drive.
  • Conforms to recognized industry standards (DIN 912).
  • Cost-effective for bulk usage with a pack of 100.

Cons

  • Specific M6 size may not fit all applications.
  • Requires a compatible hex key (Allen wrench) for installation.
  • BZP finish may not be suitable for extremely harsh or abrasive environments.
  • Grade 12.9 is very high strength, potentially overkill for light-duty tasks.

Setup, Compatibility & Care

Setup: To install, use a 5mm hex key (Allen wrench) to turn the screw clockwise into a pre-tapped hole or a nut. Apply appropriate torque based on the application's requirements, ensuring not to overtighten and strip the threads or damage the material being fastened.

Compatibility: These screws are compatible with any M6-sized threaded hole or M6 nut. Ensure the material's thickness accommodates the 20mm screw length. The DIN 912 standard ensures compatibility with other fasteners manufactured to the same specification.

Care: Store in a dry environment to maintain the integrity of the zinc plating. Clean with a dry or slightly damp cloth if dust accumulates. Avoid abrasive cleaners or solvents that could damage the protective coating.

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