Aluminium Frame Rivnut Bottle Boss (each) This bottle boss is splined for maximum clamp grip. We sell the installation tool for these bosses and also offer installation. Thread: M5 x 0.8 mm OD: Flange 10 mm OD: Spline 6.9 mm OD: non splined 6.6 mm Length: 13 mm Material: steel Maximum clamp thickness: 2.0 mm
