Carlon's snap Strap® offers a unique support strap designed especially for the installation of PVC conduit. Also suitable for installations of rigid steel. This high-strength, nonmetallic clamp allows conduit to expand and contract freely, eliminating the bowing commonly seen from the expansion and contraction of conduit caused by varying temperature changes. Finished installations have a neat, attractive appearance on exposed applications. To be used in accordance with conduit spacing requirements per section 12-1114 of the CEC. This part is not supplied with screws.