Ultra-Drive Button Head Security Self Tapping Screws (UL03)
Button head security self-tapping screws in the Ultra-Drive 2-way reusable pin-in-hexalobular drive, sheet-metal thread sizes No.2–No.14 in A2 stainless steel — the reusable security screw that forms its own thread in sheet metal and plastics, no pre-tapped hole needed.
Last updated: 2026-11
Specifications
UL03 carries the Ultra-Drive 2-way pin-in-hexalobular security recess onto a self-tapping thread: where the UL01/UL02 machine screws need a tapped hole or a nut, this SKU forms its own thread as driven, which is how security fixings get into sheet-metal enclosures, switchgear cabinets, HVAC panels and plastic housings economically — the fastener cuts, the panel needs nothing but a pilot hole. The sheet-metal thread range is No.2–No.14, and the manufacturer lists A2 stainless steel as the material, so the line suits outdoor and damp environments in its standard form. The head is the same low-profile button as UL01, sitting proud of the sheet without sharp edges. Two disciplines make self-tapping security screws work: the pilot hole must match the thread-forming requirement of the size (too large and the thread strips, too small and the drive torque rises until the recess cambs out), and drive speed should be controlled in thicker sections. Because the recess is the security element, a stripped recess in the field means a drilled-out removal — another reason the matched bit and correct pilot hole are specified together.
| Line / SKU | Ultra-Drive UL03 — button head security self-tapping screw, 2-way reusable |
|---|---|
| Drive | Pin-in-hexalobular security recess (2-way: same driver installs and removes; standard Torx/hex drivers blocked by the centre pin) |
| Thread range | No.2 – No.14 sheet-metal self-tapping thread; pilot hole per thread-forming practice |
| Head form | Button (low-profile dome) head; per-size dimensions tabulated by the manufacturer |
| Materials | A2 stainless steel |
| Reusability | Reusable — designed for repeated install/remove cycles by authorised holders of the drive bit |
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 (Ultra-Drive Button Head Security Self Tapping Screws (UL03)) 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
Self-tapping or machine thread for a sheet-metal enclosure?
Follow the base material and the service pattern. Self-tapping UL03 goes into plain sheet, plastic or thin castings with only a pilot hole — cheapest per hole, ideal where the assembly is drilled once at manufacture. Machine-thread UL01 needs a tapped hole, weld nut or clinch nut, but survives repeated assembly cycles into the same hardened seat better. Both carry the same 2-way Ultra-Drive recess, so tooling stays common across a mixed build.
What should an RFQ for UL03 screws state?
Sheet-thread size (No.2–No.14), length, the base-material type and thickness the screw must tap (so the thread-form and pilot hole can be confirmed), material class — the line lists A2 stainless — quantity per size, and drive bits with the order. Per-size head dimensions are confirmed with the quotation.
What is the MOQ and lead time for Ultra-Drive security screws?
The minimum order quantity is 10,000 pieces. Stock items ship in 3–7 days; non-stock items are confirmed at quotation. Confirm the exact schedule against quantity and size mix at quotation.
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