Salsa Deadbolt Ultralight Thru-Axle, Rear, 12mm Axle Diameter, 180mm Length, 1.75 Thread Pitch, 20mm Thread LengthThe Deadbolt Ultralight Thru Axles are offered in a 6mm flat button head design, for a flush, clean look. Lightweight, easy to use, and secure. CNC machined from 7000 series aluminum Designed to fit all current Salsa thru axle frames For other frames, check with the manufacturer for compatibility and other specifications 6mm hex wrench required for installation Product Specifics Axle Diameter (mm): 12 Thread Length (mm): 20 Weight: 36 Overall Length