2H14 Two Hole Truss Head Self Tapping Security Screws
Truss head two-hole self-tapping security screws, No.8 and No.10 as tabulated (4.2 and 4.8 mm nominal): head diameters 9.5 and 10.5 mm, head heights 2.2 and 2.75 mm. Marked lengths run 3/8″ to 2″ per the collected matrix; no standard material line stated on the collected page.
Last updated: 2026-11
Specifications
The truss head is the wide-load spreader of the two-hole self-tapping line: a low-profile dome broader than a pan head at the same gauge, sitting on a large bearing circle that holds thin sheet, plastics and soft substrates without pulling through — the collected page calls it a low profile domed head, difficult to remove without the special tool. The collected tabulation covers two gauges, No.8 and No.10 (nominal 4.2 and 4.8 mm), with head diameters 9.5 and 10.5 mm and head heights 2.2 and 2.75 mm, and records the pig-nose/snake-eye alias lineage. The application framing matches the family: areas where aesthetics matter more than security — trains, public lifts — with the reusable two-way insert drive, low to medium torque and the usual cam-out and bit-wear caveats. The length matrix is marked per cell: both gauges from 3/8″ through 1 1/2″, with 2″ marked on No.10 only. Two fail-closed notes: the page states no standard material line, so material is confirmed at quotation; and the page also tabulates an imperial-thread availability table whose relationship to this self-tapping product is ambiguous in the collected source — not interpreted and not claimed here.
| Designation | 2H14 — truss head self-tapping security screw, two-hole drive; low-profile wide dome, thread-cutting point, two-pin insert bit |
|---|---|
| Gauge range (tabulated) | No.8, No.10 (nominal 4.2 and 4.8 mm) |
| Head diameter dk per gauge (mm) | No.8 9.5 · No.10 10.5 |
| Head height k per gauge (mm) | No.8 2.2 · No.10 2.75 |
| Tool size (collected) | No.8 · No.10 two-pin insert bits by gauge |
| Length availability (as marked) | No.8 3/8″–1 1/2″ · No.10 3/8″–2″ (as marked in the collected matrix; pairs outside confirmed at quotation) |
| Security principle | Reusable two-way fixing, low/medium security resistance, low to medium torque; difficult to remove without the special insert bit per the collected page |
| Application (source-stated) | Where aesthetics are more important than security — e.g. trains, public lifts |
Materials
- Confirmed at quotation (collected page states no standard material line)
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 (2H14 Two Hole Truss Head 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
Truss head or pan head — which for thin sheet with a two-hole drive?
The truss head exists for the sheet that would pull through: its dome is broader and lower, so the clamp spreads over a wider bearing circle at 2.2 mm head height on No.8 rather than digging. The pan head 2H04 is the taller, narrower generalist for panels with more substance. Both take the same twin-hole insert drive and behave identically as reusable two-way fixings — the substrate decides.
Why does this page quote only two gauges and no material?
Because that is all the collected source tabulates and states: the dimension table covers No.8 and No.10 only, and the page carries no standard material line. Rather than borrow A2 from sibling SKUs or extend the gauge range from outside knowledge, both are treated as quotation questions — state the gauge, length and environment on the RFQ and the confirmed material and supply schedule come back with the quote.
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