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Stainless Steel Pan Head Self-Tapping Screw

Specification: M4.2 × 20 / M4.2 × 25 / M4.8× 20 / M4.8 × 32 / M4.8 × 50 /
Grade: 304

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Stainless Steel Pan Head Self-Tapping Screw Featured Image
  • SUS 304 / SUS 316

    Material Grade

  • Pan Head (Phillips Drive)

    Head Type

  • ST2.9 – ST6.3

    Diameter Range

  • 2-3 Weeks

    Lead Time

  • 25 Years

    Design Life

Introduction

High-Performance Facade Fasteners

Our stainless steel pan head self-tapping screws are specifically designed for the demanding environments of curtain wall engineering. These fasteners provide exceptional pull-out resistance and long-term structural integrity when securing aluminum profiles, brackets, and cladding components.

Benefits

Why Choose Our Stainless Steel Fasteners

  • Superior Atmospheric Corrosion Resistance

    Manufactured from premium 304 or 316 grade stainless steel to prevent rust and oxidation in coastal or high-humidity environments.

  • High Torque Transfer Efficiency

    The precision-formed Phillips pan head ensures stable tool engagement, reducing the risk of cam-out and surface damage during high-speed installation.

  • Self-Tapping Thread Precision

    Engineered with sharp, hardened threads that create their own mating threads in aluminum and thin-gauge steel without pre-drilling in certain applications.

  • Low Maintenance Structural Security

    The material properties ensure that the fastener will not degrade or lose clamping force over the lifecycle of the building facade.

Standard

Material and Dimensional Standards

Available in a wide range of metric sizes conforming to DIN 7981 and ISO 7049 standards. We offer various lengths and thread pitches to accommodate different substrate thicknesses and load requirements.

Surface finishes include passivated natural stainless steel as standard, with optional black oxide or customized fluorocarbon coatings to match specific architectural hardware finishes.

Applications

Related Applications

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FAQS

Frequently Asked Questions

Technical guidance on selecting and installing stainless steel self-tapping screws for facade engineering.

Should I use 304 or 316 grade for my project?
304 is suitable for most inland commercial projects, while 316 is recommended for coastal sites within 5km of the sea due to its superior chloride resistance.
Are these screws suitable for structural glass fins?
These are primarily for metal-to-metal or metal-to-accessory connections; structural glass applications usually require specialized bolted assemblies.
Do these require pre-drilled pilot holes?
Yes, for thicker aluminum extrusions or steel sections, a pilot hole sized to the screw's root diameter is required for optimal thread engagement.
Can these be used with galvanized steel profiles?
Yes, but we recommend using EPDM washers or specific coatings to prevent galvanic corrosion between the stainless steel and galvanized surfaces.
What is the minimum order quantity for custom lengths?
Standard sizes are stocked; custom lengths or specialized coatings typically require a minimum order of 50,000 units.
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