China Square Socket Countersunk Flat Head Screws Manufacturer, Supplier, Factory

When it comes to reliable and secure fastening solutions, the precision and efficiency of square socket drives are unmatched. Our high-quality Pan Head Screw With Square Slot and Square Slotted Pan Head Screw options are designed for superior torque transmission and reduced cam-out risk. For applications requiring a robust and flush finish, our Pan head screw with square groove offers exceptional performance and durability in various industrial and construction settings.


The Square Socket Countersunk Flat Head Screws are engineered to deliver optimal performance and reliability. These screws feature a flat head design that sits flush with the material surface, providing a smooth and clean finish. The square socket drive ensures maximum torque application with minimal slippage, making them ideal for high-stress applications. Crafted from premium materials, these screws offer excellent resistance to corrosion and wear, ensuring long-lasting performance in demanding environments.

Key Specifications

  • Drive Type: Square Socket
  • Head Style: Countersunk Flat Head
  • Material: High-Strength Steel, Stainless Steel, or Alloy Options
  • Finish: Zinc Plated, Black Oxide, or Custom Coatings Available
  • Thread Type: Fully Threaded or Partial Thread
  • Standards: Compliant with ISO, DIN, and ANSI Specifications

Detailed Product Parameters

Size (Inches) Thread Pitch Head Diameter (mm) Socket Size (Inches) Length (Inches) Tensile Strength (MPa)
#4 40 7.0 1/8 1/2 800
#6 32 8.5 5/32 3/4 850
#8 32 10.0 3/16 1 900
#10 24 12.0 1/4 1-1/4 950
1/4 20 14.0 5/16 1-1/2 1000

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