Product and application brief
A binding barrel nut is a headed female sleeve with an axial internal thread that accepts a separate male screw. Together they form a two-component through-joint fastener, also described in catalogues as a sex bolt, Chicago screw or binding post assembly. This axial arrangement differs from a cross dowel with a transverse threaded hole.
Construction choices
| Choice or field | What to identify |
|---|---|
| Female barrel | Identify the headed sleeve body, outside diameter, sleeve length and axial internal thread. |
| Mating screw | Identify the separate male screw, thread designation, threaded length, head and drive. |
| Catalogue terminology | Sex bolt, Chicago screw and binding post names can overlap. Use an exact selected component pair or drawing, not the name alone. |
Pair geometry and joint stack
Provide the thickness of the assembled parts, sleeve seating arrangement, hole geometry and access at both sides. Define the female barrel and male screw separately so the joint can be reviewed for engagement, seating and clearance without assuming dimensions from a catalogue name.
Head and drive arrangements
Fastenright documents a low-profile socket-headed pair as one construction. Other head and drive arrangements require their own selected reference. Do not assume equal head dimensions or a compatible tool for all components.
Not a cross dowel or coupling nut
The internal thread follows the sleeve axis. A cross dowel instead receives a bolt across the cylindrical body, while a coupling nut joins coaxial threaded rod ends without establishing this headed through-joint arrangement. They are not automatic substitutes.
Specification fields
| Choice or field | What to identify |
|---|---|
| Identity | Selected female and male component references, or controlled assembly drawing and revision. |
| Female component | Barrel outside diameter, length, internal thread depth, head, seating and drive details. |
| Male component | Thread diameter, pitch or TPI, hand, threaded length, head and drive details. |
| Joint | Material stack, host holes, clearances, seating and access on each side. |
| Order | Material and finish of each component, quantity of pairs or separate pieces, packing and inspection documents. |
Common product questions
Is this the same as a cross dowel barrel nut?
No. This female sleeve accepts the screw along its axis; a cross dowel has a transverse threaded interface.
Does a matching nominal thread prove the pair will fit the joint?
No. Sleeve length, internal depth, screw length, head seating and the actual joint stack also need review.
Are the illustration and catalogue names supply evidence?
No. The image is an AI appearance reference, and third-party catalogue terminology does not confirm FastenerBridge stock, dimensions or suitability.
Related product choices
Product references
References checked 11 October 2026 identify construction families, not FastenerBridge stock, certification or brand affiliation. Final supply and suitability require the selected drawing and quotation. No universal dimensions, load, torque or qualification are stated.