Why This Screw Stands Out By Pan Head Geometry?
The Phillips Pan Head Self-Drilling Screw has a special profile that gives it more uses than the broad flat bearing surface of the truss head screw. The primary differences are:
- Pan screws have smooth, rounded heads that lie flush with the mating surface, rather than projecting, because enclosures for consumer electronics and car interior trim have aesthetic and aerodynamic flow requirements.
- A pan profile provides a greater bearing surface for the clamping load than a countersunk head, while keeping a reduced assembly height – perfect for stacked or layered sheet assemblies where clearance is at a premium.
- Phillips Cross-Drive for High-Speed Driving: Deep cross recess grips the driver bit to reduce cam-out on fast, repetitive manufacturing lines. Operators can seat thousands of joints reliably without bit slip.
- Phillips Pan Head Self-Drilling Screw drills and taps sheet steel from 0.5 mm to 3.0 mm without breaking or deforming the substrate. It is equipped with Type 17, Type 25 or Type AB drill bits.
Materials, finishes, and sizes
KEY-CNC offers the Phillips Pan Head Self-Drilling Screw in many materials and surface treatments for indoor, outdoor, and corrosive situations. Carbon steel screws are made from C1022A wire rod for consistent hardness and ductility, while stainless steel 304 and 410 are offered for corrosion resistance or high strength at high temperatures.
Materials Available
- Carbon Steel C1022A-For general-purpose metal fastening, outstanding machinability, and cost-effective for high-volume production.
- Austenitic stainless steel 304 is appropriate for outdoor equipment and food-processing enclosures due to its resistance to oxidation and mild chemicals.
- Stainless Steel 410-Martensitic grade with increased hardness and tensile strength for corrosion-resistant and load-bearing structural applications.
Zinc Electroplating, Black Phosphate, Yellow Zinc, Ruspert Coating, and Passivation satisfy corrosion protection, appearance, and coating adherence needs. Based on finish, zinc-plated can withstand salt spray for 12 hours and Ruspert 500+ hours.
Technical Specifications at a Glance
The table below outlines the standard specification range for KEY-CNC Phillips Pan Head Self-Drilling Screws. All dimensions comply with DIN 7504N / DIN 7504P / DIN 7504K and relevant ISO / ASTM standards. Non-standard sizes, thread configurations, and custom tolerances are available on request for OEM orders.
Head Style: Pan Head (Round Flat Head), Phillips Recess PH2 / PH3
Material: Carbon Steel C1022A / Stainless Steel 304 / Stainless Steel 410
Drive Type: Phillips Cross Recess (PH2, PH3)
Surface Finish: Zinc Plated, Black Phosphate, Yellow Zinc, Ruspert, Passivated
Drill Point Types: Type 17 (thin sheet), Type 25 (ultra-thin), Type AB (multi-purpose), custom
Standards:DIN 7504N / DIN 7504P / DIN 7504K, ISO, ASTM
Thread Size:#6 to #14 (ST3.5 to ST6.3); metric M3.5 to M6
Corrosion Resistance: 12 h to 500 h salt spray (ASTM B117), varies by finish
Length Range:9.5 mm to 100 mm (3/8" to 4")
OEM / Custom: Custom sizes, materials, finishes, and packaging available
Thread Type: Coarse Thread (BSD), Fine Thread (CSD), Hi-Lo
FAQ
Q: What distinguishes pan head and truss head self-drilling screws?
A: Pan head screws have a low, rounded dome with a wide bearing surface that sits flush to slightly raised above the material. For thin sheet applications, truss head screws have a broader, flatter bearing surface to withstand pull-through. The Phillips Pan Head Self-Drilling Screw is recommended for its low profile and flush finish, while the truss head variety is preferred for its largest bearing area and pull-through resistance.
Q: Does the Phillips Pan Head Self-Drilling Screw work in aluminium?
A: Yes. The Phillips Pan Head Self-Drilling Screw can drill and tap aluminium sheet and extrusion profiles with Type AB drill-points. In weaker aluminium alloys, over-torquing can strip threads.
Q: Which surface finish is best for outdoor use?
A: Ruspert-coated or stainless steel 304/410 types with 300h to 500h+ salt spray resistance are suited for outdoor or maritime situations. Standard zinc-plated finishes are for indoor or dry use only.
Q: Can OEM branding be done using KEY-CNC?
A: Absolutely. KEY-CNC, an experienced TEK screw manufacturer, offers OEM services like custom head styles, non-standard thread specifications, special materials, branded packaging, and laser-marked lot numbers. We welcome prototypes and high-volume production orders.
Q: Standard lead time?
A: Standard catalogue goods arrive in 7–15 business days. The lead time for custom OEM orders depends on specification and volume; our staff will confirm with your quotation. Request expedited production.
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