2H04 Two Hole Pan Self Tapping Security Screws
Pan head two-hole self-tapping security screws, No.4–No.14 as tabulated (2.9–6.3 mm nominal): head diameters 5.4–12.2 mm, head heights 1.6–3.5 mm. A2 stainless steel standard; marked lengths run from 1/4″ to 2 1/2″ per the collected matrix, cell by cell with gaps.
Last updated: 2026-11
Specifications
2H04 takes the pig nose drive onto sheet metal and plastics: a self-tapping thread that cuts its own path — no nuts, no pre-tapped holes — under the rounded pan head that carries the twin-hole drive. The collected tabulation runs gauges No.4 to No.14 (nominal 2.9 to 6.3 mm) with head diameters 5.4–12.2 mm and head heights 1.6–3.5 mm, and the page states supply as standard in A2 stainless steel with sizes No.4 to No.14 in lengths from 1/4″ to 2 1/2″ — the electrical-trade ground this gauge span covers: prisons, hospitals, schools, lifts, trains and public areas, the same serviced-space list the machine-thread members name. The length matrix marks cells individually rather than as full bands — a few gauge/length pairs inside the headline ranges print no marker — so the marked pairs are the orderable spine and the unmarked ones are quotation lines, not silent assumptions. As everywhere in the two-hole family, the drive is a reusable two-way fixing for low to medium torque, more prone to cam-out than pin-hex, with the hole centre distance varying between makers: buy the screws and the insert bits from the same supplier and keep spares.
| Designation | 2H04 — pan head self-tapping security screw, two-hole drive; thread-cutting into sheet metal and plastic, two-pin insert bit |
|---|---|
| Gauge range (tabulated) | No.4, No.6, No.8, No.10, No.12, No.14 (nominal 2.9–6.3 mm) |
| Head diameter dk per gauge (mm) | No.4 5.4 · No.6 6.7 · No.8 8.0 · No.10 9.2 · No.12 10.5 · No.14 12.2 |
| Head height k per gauge (mm) | No.4 1.6 · No.6 2.0 · No.8 2.3 · No.10 2.7 · No.12 3.1 · No.14 3.5 |
| Tool size (collected) | No.4 · No.6 · No.8 · No.10 · No.12 · No.14 two-pin insert bits by gauge |
| Length availability (as marked) | Matrix 1/4″–2 1/2″ marked cell by cell — most gauge/length pairs from 1/2″ up are marked across all gauges; several small-gauge long-length pairs and the 2 1/2″ extreme are unmarked; exact pair confirmed at quotation |
| Security principle | Reusable two-way fixing, low/medium security resistance, low to medium torque; cam-out and bit wear as per the two-hole family |
| Materials (collected) | A2 stainless steel as standard; non-standard sizes, materials and finishes to order, including small-volume manufacture and parts made to drawings |
Materials
- A2 stainless steel
Ordering & documentation
Documents
Shipments are backed by Mill Test Certificate (MTC), Dimensional Report, Salt Spray Test Report on request, with full batch traceability from raw material to finished product. Quality management follows the owner-confirmed compliance list: ISO 9001:2015, RoHS, REACH. Exact document sets are confirmed on the order.
Quotation
- The fastener family (2H04 Two Hole Pan Self Tapping Security Screws) plus the standard designation from your drawing — DIN / ISO / JIS / ASTM / ANSI, or a drawing for custom parts.
- Size (diameter and length), thread type (metric or inch), property class or grade, and coating or finish.
- Quantity per size and your target delivery date.
- Destination country, and any required documents (for example a mill test certificate) so the quote includes them.
Sample & supply
Minimum order quantity is 10,000 pieces. Stock items run 3–7 days. Quantities or variants outside the standard range are confirmed at quotation.
Storage & shipping
Parts are packed for export and shipped factory-direct to buyers in Europe, Asia, the Americas and the Middle East. Store fasteners dry and protected until installation, and keep coated parts in their packaging until use; specific packing and preservation requirements can be stated on the order and confirmed at quotation.
Frequently asked questions
Where does the self-tapping pig nose earn its place over the machine-thread version?
Anywhere the substrate has no thread to receive one: sheet-metal enclosure walls, plastic housings, plywood-backed panels. The machine-thread 2H01 needs a nut or a tapped hole; 2H04 needs only a pilot, which makes it the standard choice on electrical enclosures and public-transport interiors — the exact spaces the collected page names. Security behaviour is identical across the two: same twin-hole drive, same reusable two-way fixing, same matching insert bit.
Which pilot hole does a two-hole self-tapper need?
The self-tapping thread cuts its own internal thread but still depends on the correct pilot for the gauge and substrate — too small and the screw binds or the panel distorts, too large and the thread form is shallow. The collected table tabulates nominal diameters per gauge (No.4 at 2.9 mm through No.14 at 6.3 mm), which sizes that calculation. Confirm the pilot against the substrate at quotation, and note the marked length cells before committing to a gauge/length pair.
What is the MOQ and lead time for these security screws?
Minimum order quantity is 10,000 pieces per item. Stocked sizes ship in 3–7 days; sizes quoted as available to order, and non-standard sizes or materials, are quoted with a confirmed schedule. Confirm the exact schedule against quantity and size mix at quotation.
What should an RFQ for these security screws state?
State the designation code (2H01 through 2H14) and head style, the drive (two-hole pig nose / snake eye — fitted with a matching two-pin insert bit), thread or tapping size and length, the hole centre distance your existing bits expect (the source notes it varies between makers), material and finish, the substrate or mating part, required certificates, and quantity per size — plus destination country.
Related knowledge
- Thread-Forming vs Thread-Cutting vs Thread-Rolling Self-Tapping Screws: What the Evidence Settles on Base Material
- Screw Family Selection by Base Material: Wood, Machine and Self-Tapping Threads, Engagement and Coating
- Hex Bolts vs Socket Head Cap Screws: What the Evidence Settles on Strength, Clearance and Cost
Request a Quote
Get factory-direct pricing from the manufacturer.
What to include in your inquiry
- ✓ Standard and property class (e.g. DIN 912, ISO 4762, class 8.8) — or a drawing for custom parts.
- ✓ Sizes, lengths and thread type (metric or inch).
- ✓ Quantity per size and your target delivery date.
- ✓ Destination country, plus any coating or finish requirement.
- ✓ Any documents you need with the shipment (e.g. mill test certificate) so the quote includes them.
- ✓ Your inquiry goes straight to the factory team by email and gets a reply within 24 hours.
- ✓ Factory-direct pricing
- ✓ Standard and custom specifications
- ✓ Factory-direct export to buyers in Europe, Asia, the Americas and the Middle East
- ✓ Full fastener family support