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Slotted Head Screw

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Slotted Head Screw Specification

Corrosion Protection
Yes

Surface Treatment
Polished

Material
Mild Steel

Type
Slotted Head Screw

Quality Level
Grade 4.8

Head Shape Type
Flat Head

Head Size
4 mm

Screw Size
M3 x 20 mm

Finish
Zinc Plated

Drive Style
Slotted

Thread Type
Metric Thread

Hardness
Rockwell B Scale: 70-80

Temperature Range
-20C to +120C

Pack Type
Box

Length
20 mm

Tensile Strength
400 MPa

Standard Conformance
DIN 84

Usage/Application
General Purpose Fastening

About Slotted Head Screw

Our expertise lies in manufacturing and supplying a well known array of Slotted Head Screw. It is widely appreciated for its longer functional life, high performance, low maintenance cost, simple operation, and many more. In order to match the varied demands of the arena, we manufacture the entire CSK Slotted Head Nickle array using tested and genuine materials. And keeping in mind the exact demands of the domain, we offer it in 9mm to 100mm length and 4,5,6,7,8,10,12 sizes.

Versatile Industrial Fastening Solution

Our slotted head screws are designed for general purpose fastening in various environments, from manufacturing to maintenance. With a 20 mm length and metric threading, they conform to DIN 84 standards, providing dependable performance for assembly, repair, or installation tasks. The zinc-plated finish ensures lasting protection against corrosion, making them ideal for use in areas with varying temperatures and humidity.

Robust Construction for Lasting Reliability

Manufactured from mild steel, these screws are engineered to achieve a tensile strength of 400 MPa and hardness on the Rockwell B Scale between 70 and 80. The Grade 4.8 quality ensures that each screw delivers optimal durability and supports substantial loads. The flat head design enables a flush fit, making them suitable for assemblies that require smooth surfaces and aesthetic appeal.

Surface Treatment and Corrosion Resistance

Each screw undergoes a meticulous polishing process and is zinc plated, offering superior corrosion protection. This dual surface treatment preserves the screws integrity in challenging conditions and extends operational lifespan. Its an excellent choice for both indoor and outdoor applications, ensuring stability across a wide temperature range from -20C to +120C.

FAQs of Slotted Head Screw:

Q: How should Slotted Head Screws with DIN 84 standard be installed?

A: These screws are installed using a flat-blade screwdriver that matches the slotted drive style. Ensure proper alignment with the slotted head during fastening to prevent slippage and achieve a secure fit in general purpose applications.

Q: What makes the zinc-plated and polished finish beneficial for these screws?

A: The zinc plating provides robust corrosion protection, while the polished surface enhances appearance and reduces friction during installation. Together, they significantly improve the screws lifespan and resilience in various environments.

Q: When is it appropriate to use these M3 x 20 mm Grade 4.8 screws?

A: Use these screws for general purpose fastening jobs requiring moderate tensile strength and effective corrosion resistance. They are ideal for industrial, manufacturing, construction, and domestic applications within the specified temperature range.

Q: Where can Slotted Head Screws of this specification be sourced in India?

A: They are available through exporters, importers, manufacturers, and suppliers across India. Most industrial hardware vendors and online marketplaces offer these screws in box packs for convenience.

Q: What process is used to treat the surface for corrosion resistance?

A: The screws undergo a dual process of polishing and zinc plating. Polishing refines the raw metal for smoothness, and zinc plating deposits a protective layer to guard against moisture and oxidative damage.

Q: How does the flat head design benefit the assembly process?

A: The flat head allows the screw to sit flush with the surface of the material, ensuring a smooth, unobtrusive finish. This enhances safety and aesthetics, making it especially suitable for assemblies that require a sleek or even profile.

Q: What are the main usage and benefits of choosing this Grade 4.8 slotted screw?

A: This Grade 4.8 screw delivers reliable fastening, moderate tensile strength, and resistance to corrosion across diverse applications. Its standard metric thread and flat head design provide user-friendly installation, while surface treatments ensure long-term durability and performance.