CSK Machine Screw

Precision Fastening for Flush-Fit Applications

The CSK (Countersunk) Machine Screw is engineered for secure and flush installation in metal, wood, or plastic components. Featuring a flat, countersunk head and a fully threaded shank, these screws are ideal for applications requiring a smooth surface after fastening. They are commonly used in electrical, mechanical, and industrial assemblies where durability, alignment, and a clean finish are critical.

  • Countersunk Flat Head: Sits flush with the surface for a sleek and professional finish.

  • Precision Threading: Provides a tight, vibration-resistant fit for lasting durability.

  • Available Drive Types: Slotted, Phillips, and Allen (Hex) drive options.

  • Wide Material Options: Available in stainless steel, mild steel, brass, and zinc-plated finishes.

  • Corrosion-Resistant Finishes: Ideal for both indoor and outdoor applications.

Attribute

Details

Material

Stainless Steel / Mild Steel / Brass

Finish

Zinc-Plated / Polished / Black Oxide

Head Type

CSK (Countersunk Flat Head)

Drive Type

Slotted / Phillips / Allen (Hex Socket)

Thread Type

Metric / Imperial (UNC, UNF)

Sizes Available

M2 – M12 diameter, lengths from 6mm – 100mm

Standards

DIN 963 / ISO 2009 / ANSI Standards

  • Metal-to-metal or metal-to-wood fastenings

  • Electrical panels, switchgear, and enclosure assemblies

  • Furniture fittings and interior hardware

  • Automotive and machinery parts

  • Appliances, electronics, and fixtures

Q1. What does CSK stand for in screws?

CSK stands for “Countersunk,” indicating that the screw head is designed to sit flush with the surface after installation.

Q2. Can I use CSK machine screws on wood?

Yes, they can be used with wood when a countersunk hole is pre-drilled for a flush finish.

Q3. Are stainless steel CSK screws rustproof?

Yes, stainless steel variants offer excellent resistance to rust and corrosion, especially in outdoor or humid environments.

Q4. What tools are required for installation?

Depending on the drive type, you can use a slotted screwdriver, Phillips driver, or Allen key/bit.

  • Premium-grade materials for strength and durability

  • Strictly manufactured to international standards

  • Available in bulk quantities and assorted sizes

  • Ideal for industrial, commercial, and DIY use

  • Fast shipping and custom packaging options