Pan Phillips Screws
What are Pan Phillips Screws?
Pan Phillips screws are machine screws characterized by their rounded, slightly domed head and a cross-shaped (Phillips) drive. The pan head provides a clean, finished look and a broad bearing surface, making it ideal for applications requiring a neat and flush assembly without countersinking. Their Phillips drive design allows for better torque control and reduces the risk of cam-out during installation.
Pan Phillips screws are widely used in electronics, automotive parts, household appliances, and sheet metal assemblies due to their aesthetic appearance and reliable fastening.
Key Features
High
Grip
Durable
Construction
Easy Installation
& Removal
Wide
Compatibility
Corrosion
Resistant
Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Nominal Diameter | M1.6 to M24 (custom sizes available) |
| Length Range | Standard & Custom | 2 mm to 200 mm (depending on diameter) |
| Thread Types | Metric | Coarse (ISO 261/965), Fine (ISO 8676) |
| Imperial | UNC, UNF, BSW, BSF | |
| Head Style | Pan Head | Rounded top surface with flat bearing surface |
| Drive Type | Phillips | Cross-recessed (ISO 7045 / ANSI B18.6.3) |
| Material Options | Stainless Steel | A2-70, A4-80 |
| Alloy Steel | Black Oxide, Zinc Plated | |
| Brass | Polished / Natural | |
| Nylon / Plastic | For non-metallic applications | |
| Standards & Certifications | ISO | ISO 7045, ISO 7046 |
| DIN | DIN 7985A, DIN 7985H | |
| ANSI / ASME | ANSI B18.6.3 | |
| JIS | JIS B1111 | |
| Coating & Surface Finish | Protective Coatings | Zinc Plated, Hot Dip Galvanized, Nickel, Chrome |
| Anti-Corrosion | PTFE, Geomet, Dacromet | |
| Surface Finish | Polished, Black Oxide, Bright, Passivated | |
| Design Features | Threading | Full Thread / Partial Thread |
| End Type | Flat / Chamfered | |
| Tolerance | As per ISO 4759-1, ASME B18.6.3 | |
| Testing & Inspection | Mechanical Testing | Tensile, Hardness, Shear |
| Non-Destructive Testing | Visual, Dimensional, Coating Thickness | |
| Certifications | EN 10204 3.1 / 3.2, ISO 9001, CE, RoHS compliant |
Dimensions
| Screw Size (d) | Pitch (mm) | Head Diameter (dk, mm) | Head Height (k, mm) | Recess Size (Phillips) | Socket Depth (mm) | Standard Lengths (mm) |
|---|---|---|---|---|---|---|
| M1.6 | 0.35 | 3.0 – 3.2 | 1.0 – 1.1 | PH0 | 0.7 | 2 – 12 |
| M2 | 0.40 | 3.8 – 4.0 | 1.3 – 1.5 | PH0 | 0.9 | 3 – 20 |
| M2.5 | 0.45 | 4.7 – 5.0 | 1.6 – 1.8 | PH1 | 1.0 | 4 – 25 |
| M3 | 0.50 | 5.5 – 6.0 | 2.0 – 2.2 | PH1 | 1.2 | 5 – 30 |
| M4 | 0.70 | 7.2 – 8.0 | 2.6 – 3.0 | PH2 | 1.5 | 6 – 40 |
| M5 | 0.80 | 9.0 – 10.0 | 3.2 – 3.5 | PH2 | 1.8 | 8 – 50 |
| M6 | 1.00 | 10.8 – 12.0 | 3.9 – 4.5 | PH3 | 2.2 | 10 – 60 |
| M8 | 1.25 | 14.5 – 16.0 | 5.2 – 6.0 | PH4 | 3.0 | 12 – 80 |
| M10 | 1.50 | 18.0 – 20.0 | 6.5 – 7.0 | PH4 | 3.5 | 16 – 100 |
| M12 | 1.75 | 22.0 – 24.0 | 7.5 – 8.0 | PH4 | 4.0 | 20 – 120 |
Mechanical Properties
| Property | Value | Unit / Standard |
|---|---|---|
| Tensile Strength | 500 – 1200 | MPa (depending on material: SS, Alloy Steel, Brass, Nylon) |
| Yield Strength | 210 – 950 | MPa |
| Hardness | 160 – 370 | HV / Vickers (material-dependent) |
| Elongation | ≥ 8 – 25 | % |
| Density | 7.7 – 8.0 (Metals), ~1.15 (Nylon) | g/cm³ |
| Impact Toughness | ≥ 20 – 60 | J (Charpy, material-dependent) |
| Modulus of Elasticity (E) | ~200 | GPa (Steel), ~110 GPa (Brass), ~2.5 GPa (Nylon) |
| Shear Strength | 300 – 700 | MPa |
| Fatigue Strength | 180 – 450 | MPa |
| Corrosion Resistance | Good to Excellent | SS > Brass > Alloy Steel > Coated |
| Thermal Conductivity | 15 – 50 (Steel/SS), 120 (Brass), 0.25 (Nylon) | W/m·K |
| Coefficient of Thermal Expansion | 11 – 17 ×10⁻⁶ (metals), ~80 ×10⁻⁶ (Nylon) | /°C |
| Poisson’s Ratio | 0.27 – 0.33 | – |
| Brinell Hardness Range | 120 – 350 | HB |
| Surface Finish | Zinc Plated, Black Oxide, Passivated, Polished | – |
| Welding Type | Not applicable | (threaded fastener) |
| Operating Temperature Range | -50 to 400 (Metals), -20 to 120 (Nylon/Plastic) | °C |
| Applicable Standards | ISO 7045, DIN 7985A, ANSI B18.6.3 | – |
Chemical Composition
| Element | SS 304 (%) | SS 304L (%) | SS 316 (%) | SS 316L (%) |
|---|---|---|---|---|
| Chromium (Cr) | 18.0 – 20.0 | 18.0 – 20.0 | 16.0 – 18.0 | 16.0 – 18.0 |
| Nickel (Ni) | 8.0 – 10.5 | 8.0 – 12.0 | 10.0 – 14.0 | 10.0 – 14.0 |
| Carbon (C) | ≤ 0.08 | ≤ 0.03 | ≤ 0.08 | ≤ 0.03 |
| Manganese (Mn) | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 |
| Iron (Fe) | Balance | Balance | Balance | Balance |
| Molybdenum (Mo) | — | — | 2.0 – 3.0 | 2.0 – 3.0 |
Applications of Pan Philip Screws
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What is a Pan Phillips screw used for?
Is the Phillips drive better than a slotted one?
Are Pan Phillips screws rust-proof?
Can I get custom sizes or packaging?
