CL06 Clutch Head Countersunk Security Wood Screws
Countersunk head one-way clutch head security wood screws, No.6–No.12 as tabulated: head diameters 7.0–11.0 mm, head heights 3.5–5.4 mm. Steel zinc plated; no lengths published — availability matrix unmarked.
Last updated: 2026-11
Specifications
CL06 extends the clutch head one-way line into timber and wood-based panels: a countersunk head that seats flush in timber, a wood-screw thread that grips without a nut, and the same chamfered slotted drive that installs with any standard screwdriver and then denies reverse torque. The collected tabulation runs No.6 to No.12 with head diameters from 7.0 mm to 11.0 mm and head heights from 3.5 mm to 5.4 mm, and states supply in zinc-plated steel — the economical construction-grade combination, with non-standard sizes and materials available to order. The application ground named for the family applies squarely here: public buildings, washroom cubicles, furniture in stations and other places where timber elements must stay assembled and unattended. Note the tabulated head heights run taller than the sheet-metal pages in this batch — a wood screw head carries more driving torque in a soft substrate — and the collected availability matrix prints length rows with no legible markings, so lengths are confirmed at quotation.
| Designation | CL06 — countersunk security wood screw, clutch head one-way drive; seats flush in timber and wood-based panel |
|---|---|
| Gauge range (tabulated) | No.6, No.8, No.10, No.12 |
| Head diameter dk per gauge (mm) | No.6 7.0 · No.8 8.3 · No.10 9.3 · No.12 11.0 |
| Head height k per gauge (mm) | No.6 3.5 · No.8 4.6 · No.10 5.0 · No.12 5.4 |
| Length availability | No legible markings in the collected availability matrix — confirmed at quotation |
| Security principle | One-way permanent fixing — standard slotted screwdriver installs; anti-clockwise torque slips out |
| Materials (collected) | Steel zinc plated; non-standard sizes and materials to order |
Materials
- Steel, zinc plated
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 (CL06 Clutch Head Countersunk Security Wood 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
What changes when a one-way screw goes into wood instead of sheet metal?
The substrate work, not the security. Wood lets the thread cut and grip without a pilot in soft species, but the head has to carry torque into a material far softer than steel — which is why the collected tabulation shows taller heads here (5.0 mm at No.10 versus 3.5 mm on the self-tapping CL04) with a deeper slot. Drive slowly and square in hardwood, and check the zinc plating suits the interior environment; for damp or exterior timber, raise the material question at quotation.
Which gauge and length for cubicle and furniture work?
The collected table covers No.6 to No.12, the range that spans light panel fixings (No.6) through heavier furniture and framing screws (No.12). Length is not quotable from this page — the collected matrix marks no cells legibly — so state the panel build-up and required penetration on the RFQ and let the quotation fix the length; non-standard lengths are available to order per the collected source.
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 (CL01 through CL06) and head style, the drive (clutch head one-way — fitted with a standard slotted screwdriver), nominal thread size and length, 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