Add a Baby-pin stud with integrated 1/4"-20 threaded stud, like you find on many photo lightstands, to curved or flat surfaces with this C-Clamp Lock-Grip Fixture with 1/4"-20 Adapter from Camvate. The clamp features one flat and one angled jaw, each with a rubberized material that increases grip while protecting the surface you are clamping to. The angled jaw enables mounting the clamp on flat and curved surfaces such as pipes, poles, or tee branches up to 1.65" in diameter. The combo Baby-pin and 1/4"-20 threaded stud allow you to mount numerous light fixtures and accessories.