China Stainless Steel 304 M1.2 M1.4 M1.7 M2 M2.3 M2.6 M3 M3.5 M4 M4.2 M5 M6 Phillips Pan Round Head Self Tapping Screws factory and suppliers

Stainless Steel 304 M1.2 M1.4 M1.7 M2 M2.3 M2.6 M3 M3.5 M4 M4.2 M5 M6 Phillips Pan Round Head Self Tapping Screws

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Product Name: Stainless Steel 304 M1.2 M1.4 M1.7 M2 M2.3 M2.6 M3 M3.5 M4 
M4.2 M5 M6 Phillips Pan Round Head Self Tapping Screws
Size: ST3.5，ST4.2，ST4.8，ST5.5，ST6.3
Material: 1022，SS410，SS304，SS316
Surface treatment: Plain, Zinc, Yellow Zinc, Black Zinc etc
Points: PT.1,PT.2,PT.3,PT4,PT.5,PT.6(as below drawing)
Advantages: OEM / ODM / customized service provided
Package:  as your request
Service: 24 hours
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Pan Head Phillips Self-Drilling Screws are specialized fasteners designed for efficiency and durability in construction and metalworking applications. Here’s a detailed explanation of their purpose and key features:
1. Primary Function
These screws combine drilling and fastening in one step, eliminating the need for:
* Pre-drilling pilot holes * Separate tapping tools * Additional hardware (in most cases)

2. Why Choose This Design?
FeatureBenefitPan HeadProvides broad bearing surface to prevent pull-through on thin materialsPhillips DriveCompatible with
standard screwdrivers/drills (PH2 bit most common)Self-Drilling TipCuts through metal (up to 12-14 gauge) without pilot holes
Thread DesignAggressive threads grip metal securely; some versions include anti-loosening notches

3. Material Options
* Coating/Finish: Zinc-plated (standard), Galvanized (outdoor use), Stainless Steel 304/316 (corrosion resistance)

Roofing Screws provide secure metal to metal fastening with strong holding power, without the need to pre-drill. The self-sealing neoprene washer provides a waterproof seal. The premium finish provides exceptional corrosion resistance in harsh outdoor environments. Roofing Screws are ideal for attaching roofing and wall panels to steel and wood framing.

* Easy to screw in
* High tensile strength
* Avoid cracking and splitting
* Deep and sharp thread for cutting through wood cleanly
* Excellent quality and high temperature treatment for resistance to snapping
* Different choices of dimensions and surfaces
* Construction authorities approved
* Long service life