China Pan head screw with square groove Manufacturer, Supplier, Factory

Unlock Superior Fastening Performance with Pan Head Screw with Square Groove

In precision engineering and industrial applications, the choice of fasteners can significantly impact efficiency and reliability. The Pan Head Screw With Square Slot exemplifies durability and ease of use, making it a top pick for assembling machinery, furniture, and electronic devices. Its unique square groove design allows for secure engagement with standard screwdrivers, minimizing slippage and wear over time. Similarly, the Square Slotted Pan Head Screw offers excellent torque transmission and resistance to cam-out, ensuring tight fits in demanding environments. For applications requiring a flush finish, the Square Socket Countersunk Flat Head Screws provide a sleek profile while maintaining the benefits of square drive systems. These screws are crafted from high-grade materials to withstand corrosion, vibration, and heavy loads, enhancing the longevity of your projects. By integrating these reliable fasteners, businesses can streamline assembly processes, reduce maintenance costs, and achieve consistent results across various sectors, from automotive to construction.


The Pan Head Screw with Square Groove stands out as a versatile and robust solution for countless fastening needs. This product features a low-profile, rounded head that distributes pressure evenly, reducing the risk of surface damage. It is engineered with a precise square recess that ensures optimal driver engagement, allowing for higher torque application without stripping the screw head. Common specifications include a wide range of sizes, from #2 to 1/2 inch diameters, and lengths varying between 1/4 inch to 3 inches to accommodate diverse project requirements. Materials such as stainless steel, carbon steel, and brass are available, often coated with zinc plating or black oxide for enhanced corrosion resistance. Thread types cover coarse and fine pitches, adhering to standards like UNC and UNF, while the drive system is exclusively square to match compatible tools. Below is a detailed breakdown of key parameters presented in a list and table for clarity:

  • Head Type: Pan head with a flat bearing surface
  • Drive Type: Square groove (square recess)
  • Material Options: Stainless steel (Grade 304 or 316), carbon steel (Grade 2, 5, or 8), brass
  • Surface Finishes: Zinc plating, black oxide, plain, or galvanized
  • Thread Standards: UNC (Unified Coarse) or UNF (Unified Fine)
  • Common Applications: Automotive assemblies, electronics, furniture, and machinery
Size (Diameter x Length) Material Drive Size Thread Pitch Tensile Strength (MPa)
#4 x 1/2" Stainless Steel 304 #1 Square UNC 20 ≥500
#6 x 3/4" Carbon Steel Grade 5 #2 Square UNC 20 ≥800
#8 x 1" Brass #2 Square UNF 24 ≥400
1/4" x 1-1/2" Carbon Steel Grade 8 #3 Square UNC 13 ≥1000
3/8" x 2" Stainless Steel 316 #3 Square UNF 16 ≥600

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