QA1 XM Endura Series Rod End's 1/2" holes with 3/4-16 Thread Kit includes 4 Left Hand threaded Heim's with Jam Nuts as well as 4 Right Hand threaded Heim Joints with jam nuts. Works for AFRC-S1140-S1160 Universal 4-Link Kits as well as replacement Heim Joints for AFRC-S1450 C-3 4-Link Kit.