All hardware is fully threaded and made from 304 Stainless Steel. Sold in packages with quantity listed below. Size Pack Quantity Common Use M4 x 8mm 40 Caster Pill M5 x 20mm 50 Brake Pedal M5 x 55mm 20 LO206 Header M6 x 20mm 40 Sprocket M6 x 25mm 30 Sprocket M6 x 30mm 25 Sprocket M6 x 35mm 25 Sprocket Guard M6 x 40mm 20 Sprocket Guard M6 x 50mm 20 Steering Hub M8 x 20mm 20 Engine Mount M8 x 30mm 15 Engine Mount M8 x 40mm 15 Engine Mount M8 x 50mm 12 Engine Mount M10 x 20mm 12 Engine Clamp M10 x 25mm 10 Engine Clamp M10 x 30mm 10 Engine Clamp M10 x 35mm 10 Engine Clamp M10 x 40mm 8 Engine Clamp M10 x 45mm 8 Engine Clamp