Milwaukee Twins Riser Top Clamp Sockethead Screw Kit The Milwaukee Twins Riser Top Clamp Sockethead Screw Kit is perfect for those looking to upgrade or replace the hardware on most shorty handlebar risers. Compatible with a 5/16-18 thread size, each screw measures 1-1/4 for a perfect fit. Designed to serve as a seamless replacement for OEM parts, the kit ensures a secure connection to keep your setup solid. Formerly offered under the J&P Cycles brand. Features: For most shorty handlebar risers, 5/16-18 thread 1-1/4 in length Replaces OEM 3210