Clamp Lock with TEK-LOK The Clamp Lock with TEK-LOK attaches to your belt or 1.5-2.24-inch strap. Once attached to your backpack or belt, you can connect any round or square posts. NOTE: You will need at least one Clamp Lock OR Slide Lock AND one RP M, QD P, or Anywhere Mount —- CLAMP LOCK with TEK-LOK Attaches to belt or 1.5-2.25-inch strap