Product and application brief
A half moon nut is a curved furniture-joint component with an internal threaded hole. Its semicircular body and threaded interface distinguish it from an unthreaded crescent washer and a cylindrical cross dowel. Lunar and crescent nut names refer to this family here, not separate product pages.
Construction choices
| Choice or field | What to identify |
|---|---|
| Curved threaded body | Original maker drawing shows a semicircular band with a threaded hole across the curved wall, not a solid cylindrical cross dowel. |
| Host-bore arrangement | The family may be seated in a furniture bore. Identify the actual curvature, height, wall section, hole position and bolt approach from the selected drawing. |
Body curvature and threaded-hole position
Describe body curvature, height, wall section, hole centre from a defined datum and hole direction. A generic appearance image cannot determine a bore diameter, tolerance or thread engagement.
Mating bolt and timber joint
Provide the host material, bore and bolt passage, remaining material, access and receiver orientation. Match the selected furniture connector bolt or other threaded fastener through the assembly drawing; do not select duty or capacity from nominal thread size.
Keep washers and cross dowels separate
An unthreaded half moon washer used with a separate nut is not this threaded component. Cross dowel barrel nuts use a cylindrical body and transverse threaded interface; binding posts use an axial female barrel. These forms are not automatic substitutes.
Specification fields
| Choice or field | What to identify |
|---|---|
| Identity | Exact selected part reference or controlled drawing and revision. |
| Body | Curvature, height, wall section, ends, threaded-hole datum and units/tolerances. |
| Thread | Designation, pitch, hand, fit, hole arrangement and selected mating bolt. |
| Host and order | Host material, bore, bolt passage, access, material, finish, quantity, destination and required inspection documents. |
Common product questions
Are lunar nuts and crescent nuts separate pages?
Not here. These names are aliases of the half moon nut family; identify the actual drawing to avoid confusion with washers.
Is a half moon nut an unthreaded washer?
No. This page covers the internally threaded curved component, not an unthreaded washer with a separate nut.
Does thread diameter establish furniture-joint load capacity?
No. Joint suitability depends on the selected component, host material and assembly design; no load or tightening torque is stated.
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.
