This is a new unused bolt thru axle for Rockshox forks. It is for forks with 110mm x 15mm Boost dropouts and uses a 6mm allen key. Thread pitch is M15 x 1.5.
Rockshox Maxle Boost 110 x 15mm Compatible Thru Axle
Rockshox Maxle Ultimate Pike/Yrik/Yari Axe Through Axle 15 x 110 mm
Rockshox Maxle Stealth MTB 12 X 148mm Boost Rear Through Axle 188 mm
Rockshox Maxle Stealth MTB Boost Front Through Axle 158 mm
Rockshox Maxle Non Boost 100 x 15mm Compatible Bolt Thru Axle
SRAM RockShox Maxle Stealth Rear Mtb, 12X148, Length 195mm, Thread Length 20mm, Thread Pitch M12X1.75 - Boost Trek Abp Frames: Black 12X148mm