Our Phillips pan head framing screws cut their own mating thread as they drive - no pilot hole needed in wood, thin metals, plastics, or drywall. One motion, one tool. Typical labor savings can reach 50%. In our factory tests on 18-gauge steel studs, these screws drove cleanly without pre-drilling over 5,000 cycles.
More metal mass = higher torque transmission without stripping. Flat underside prevents sinking into soft materials. Phillips recess ensures positive bit engagement, minimizing slippage during high-speed driving.
Our pan framing head self tapping screws sizes range from #5 to #14 (ST2.9-ST6.3), lengths 9-150mm. Ideal for light-gauge steel studs (25-16 ga), wood-to-metal, HVAC, drywall to steel - consistent thread bite and pull-out resistance.
Surface: HRC 52-58 (case-hardened). Core: HRC 28-38. Penetrates hard substrates without stripping, yet resists brittle fracture under shear/tensile loads.
Complete pan framing head self tapping screws sizes chart - including head dimensions, thread pitch, and length options.
| Thread Size (ST) | Thread Pitch (p) | Head Dia. (dk) max | Head Height (k) max | Core Dia. (d1) min | Length Range (L) |
|---|---|---|---|---|---|
| ST2.9 (#5) | 0.8 mm | 5.6 mm | 2.4 mm | 2.08 mm | 6.5 – 25 mm |
| ST3.5 (#6) | 1.3 mm | 7.0 mm | 2.6 mm | 2.51 mm | 6.5 – 50 mm |
| ST3.9 (#7) | 1.3 mm | 8.0 mm | 3.1 mm | 2.95 mm | 6.5 – 65 mm |
| ST4.2 (#8) | 1.4 mm | 8.0 mm | 3.1 mm | 2.95 mm | 9.5 – 75 mm |
| ST4.8 (#10) | 1.6 mm | 9.5 mm | 3.7 mm | 3.43 mm | 9.5 – 75 mm |
| ST5.5 (#12) | 1.8 mm | 11.0 mm | 4.0 mm | 3.99 mm | 9.5 – 85 mm |
| ST6.3 (#14) | 1.8 mm | 12.0 mm | 4.6 mm | 4.70 mm | 13.0 – 150 mm |
Custom Sizes Available: OEM/ODM orders accepted. Lengths, head markings, and packaging configurations can be customized to your specifications.
| Substrate Type | Recommended RPM | Pilot Hole Recommendation |
|---|---|---|
| Softwood / Plywood | 800–1,200 RPM | Not required |
| Hardwood | 600–800 RPM | Pilot hole recommended for diameters > ST4.8 |
| Thin-gauge steel (≤ 1.5mm) | 1,000–1,500 RPM | Not required |
| Plastic | 500–800 RPM | Pilot hole recommended to prevent boss cracking |
| Drywall | 1,200–1,800 RPM | Not required |
Our pan framing head self tapping screws are compatible with a range of tools to suit different project scales and requirements:
Hefeng Group focuses on manufacturing and supplying screws for real construction needs.
Over the past 10 years, we’ve worked with customers across North America, South America, and Southeast Asia, learning that consistency matters most in this business...[ Read More >>]
