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RS PRO M5 x 20 mm Hex Socket Countersunk Screw Bright Zinc-Plated Steel

These RS PRO hexagon socket countersunk screws rest flush with or just below the surface of your material for a smooth finish. Thanks to their 10.9-grade steel composition, they have outstanding tensile strength and wear resistance.
The screws feature a bright zinc-plated (BZP) finish that resists corrosion and rust to ensure dependability and a long service life. You can use a hex or Allen key to fasten or unfasten them.
As they meet the ANSI/ESD S20.20:2014 and BS EN 61340-5-1:2007 international Electrostatic Control Standards, they've been tested to minimise the risk of static electricity build-up. They're also threaded to DIN 7991 specifications for hexagon socket countersunk head cap screws. You can use them for electrical, medical and light household applications, as well as in the automobile and machine industries.

Features and Benefits

• Bright zinc-plated finish
• Hex socket countersunk head shape
• Length of 20 mm
• Steel material
• Thread pitch of 0.8 mm
• M5 thread size
• Metric thread type

RS PRO Metric Thread BZP Socket Countersunk Head Screw

RS PRO popular hexagon socket countersunk screws are an excellent choice when you need a fastener to sit flush or below the surface of your material.
These metric thread countersunk screws are produced in 10.9 grade steel. The finish of these fasteners is bright zinc-plated which ensures an attractive, quality appearance and finish wherever they are used. They are ideal for light fastening applications in machine tooling, security guarding, panel building and for general fastening.
These screws can be tightened or undone using an Allen key or a hex key.

Features and Benefits:

• Various thread sizes available, including M3, M4, M5, M6, M8, M10, M12 and M16
• Manufactured from Bright Zinc Plated Steel (BZP)
• Used in applications where a wider head and lower profile is required
• Also used in many internal joinery applications
• Have the marking on the head
• More resilient than 8.8 grade
• Nominal strength of 1040 N/mm²
• Yield strength of 940 N/mm²

Typical Applications include:

• Although uses may vary, as standard, these screws are fasteners for industrial equipment or machines which requires parts to be fixed onto a surface or together. The socket will need to be the same metric thread as the screw itself. As an example, some of the types of uses would be:
• Woodworking
• Domestic applications
• Fasteners and fixings
• Machine tooling and repair
• Security guarding
• Electronic applications
• Automotive industry
• Medical applications
• Facilities and maintenance applications

FAQs
What is a socket screw?

Socket screws are defined by their name. They are a type of threaded bolt which screws into the intended socket. There are various thread sizes and lengths and can be used for both industrial and personal purposes. Good quality and reliable RS PRO socket screws ensures the fixing will remain strong and stable, whatever the application.

What is BZP?

Meaning bright zinc plating, a shiny coating is applied to the steel, this process prevents corrosion and rusting. If the application is situated within a harsh environment, BZP will provide much-needed longevity and reliability. Although it may not be as effective as stainless steel, the added benefit would be the price. As stainless steel is completely rustproof, but expensive, BZP Steel offers a great solution and is massively cost-effective.

Notes

Requires a Hex key
We offer a range of hexagon countersunk socket screws in bright zinc plated steel, available in various thread sizes and lengths. Refer to the Datasheet and Range Overview download file for details.
If bright zinc plated steel is not what you are looking for we also offer steel hexagon countersunk socket screws with a self-colour (black oxide) finish or alternatively A2 (306) and A4 (316) stainless steel.

Standards

Threaded in accordance with DIN 7991