| 摘要 |
A climbing nut is generally trapezoidal and has planar upper and lower faces and paired adjacent faces that are convex and concave, respectively. Opposed faces of the nut are therefore convex and concave, respectively. The convex faces have lateral longitudinally extending leg segments that assist in triangulation and strengthen the nut. The geometry of the faces allows for greater placement options. The nut alternately has one or more asymmetric curved faces. The nut is milled from stock extrusion material.
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