Select Keflex Anchor Clamps for no-load or low end thrust load expansion joints. Keflex Anchor Clamps are well-suited for installation with our Keflex expansion loops. These anchor clamps are lightweight, fabricated from ASTM A-36 steel and manufactured in the USA. Our anchor clamps include 2 brackets for quick and easy installation. Anchor clamps are not suitable for in-line bellows type expansion joint installations.