SB005 Domed Low Profile Barrel Nuts (No Drive)
Drive-less domed low-profile barrel nuts (sleeve nuts), M5–M8 in A4 stainless steel — 10.0–14.0 mm domed heads over 7.13–11.0 mm bodies, lengths 43–60 mm. All torque goes into the mating screw; the dome presents a clean finished face.
Last updated: 2026-11
Specifications
The domed low profile barrel nut removes the drive entirely: the female sleeve carries a smooth domed head that no tool touches, because every bit of installation torque is applied to the mating machine screw on the opposite side. The collected tabulation covers M5, M6 and M8 — domed heads 10.0, 11.5 and 14.0 mm across, bodies 7.13, 8.0 and 11.0 mm, overall lengths 43, 49 and 60 mm with 40–55 mm under the head and 25–35 mm of thread engagement. Tabulated lengths are 40, 45 and 55 mm. A4 stainless steel as standard makes it the corrosion choice for exterior and coastal architectural work. With nothing to grip and nothing to snag, the dome is the finished-face answer for balustrades, furniture, playground and street furniture — anywhere the installed joint should look like a polished button.
| Designation | SB005 — domed low profile barrel nut, no drive (sleeve nut) |
|---|---|
| Thread range | M5, M6, M8 |
| Head diameter D per thread (mm) | M5 10.0 · M6 11.5 · M8 14.0 |
| Body diameter D1 per thread (mm) | M5 7.13 · M6 8.0 · M8 11.0 |
| Overall length L per thread (mm) | M5 43.0 · M6 49.0 · M8 60.0 |
| Length under head L1 per thread (mm) | M5 40.0 · M6 45.0 · M8 55.0 |
| Thread engagement L2 per thread (mm) | M5 25.0 · M6 30.0 · M8 35.0 |
| Available lengths (tabulated) | 40 mm, 45 mm, 55 mm |
| Drive | None — torque is applied to the mating screw |
| Material | A4 stainless steel as standard |
| Typical applications | Architectural applications; suits any machine screw with a matching thread |
Materials
- A4 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 (SB005 Domed Low Profile Barrel Nuts (No Drive)) 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
How do you install a barrel nut with no drive?
From the other side. The domed head is deliberately tool-free — you hold or fix the mating machine screw and drive it into the sleeve, so all torque goes through the screw head, not the dome. That makes the joint tamper-neutral (nothing to grip) and keeps the exposed face clean, but it also means the far side needs access for installation. Where only one face is reachable, a socket-drive barrel nut is the practical choice.
What is the MOQ and lead time for this nut type?
The minimum order quantity is 10,000 pieces. Stock items ship in 3–7 days; non-stock items are confirmed at quotation. Common diameters in this nut type are widely stocked; confirm the exact schedule against quantity and size mix at quotation.
What should an RFQ for this nut type state?
State the designation (for example the barrel-nut SKU and head style), nominal thread size and pitch, overall barrel length or grip, material and finish (plain, zinc, or stainless where compatible), whether a through-hole or blind (closed) end barrel is required, the mating screw specification, required certificates, and quantity per size — plus destination country.
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