China Slotted Pan Head Screws Manufacturer, Supplier, Factory

For demanding applications requiring superior clamping force and vibration resistance, Waisted Shank Slotted Pan Head Screws offer a specialized engineering solution. Unlike standard fasteners, the unique Waisted Shank Slotted Pan Head Screws feature a reduced diameter shank directly beneath the head. This specific design concentrates the tensile strength and allows for exceptional pre-load, making them ideal for assemblies subject to high stress or thermal cycling. The slotted pan head design remains a classic choice for manual assembly and adjustments, providing a reliable and widely recognized drive system. The combination of the waisted shank and the low-profile pan head makes these Waisted Shank Slotted Pan Head Screws a critical component in industries ranging from heavy machinery to precision electronics, where joint integrity is non-negotiable.


The fundamental design of Slotted Pan Head Screws makes them a versatile and dependable choice for countless fastening tasks. The pan head provides a slightly rounded top with a flat bearing surface, offering a good compromise between a low profile and high torque capability for the slotted drive. This head style is less likely to snag compared to a hex head, making it suitable for applications in confined spaces. The simple slotted drive is universally compatible with standard flat-blade screwdrivers, ensuring ease of assembly and disassembly in the field without the need for specialized tools. The robust construction of Slotted Pan Head Screws ensures they can withstand significant shear and tensile forces, providing long-lasting security for your products and assemblies.

Slotted Pan Head Screws: Key Specifications

  • Drive Type: Slotted
  • Head Style: Pan
  • Standards: DIN 85, ISO 1580
  • Thread Types: Metric Coarse (standard), Metric Fine, UNC, UNF
  • Materials: Steel, Stainless Steel (A2/A4), Brass, Aluminum
  • Finishes: Zinc Plated, Black Oxide, Plain, Passivated
Nominal Size (M) Head Diameter (mm) Head Height (mm) Slot Width (mm) Slot Depth (mm)
M3 5.5 1.8 0.6 1.1
M4 7.0 2.2 0.8 1.4
M5 8.5 2.7 1.1 1.7
M6 10.0 3.2 1.3 2.0
M8 13.0 4.0 2.0 2.5

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