Extended lip aligns Parallel Broove Clamp as bolt is tightened. PG Clamp base section forms a weather shield for the grooves. Compound stays in place, connections last longer. Bolts are made of high-strength aluminum alloy and maintain high contact pressure during heating and cooling cycles. Rotational tightening method for 396.6, 395.5 and 490.0 clamps provides accurate torquing. Set assembly finger tight and wrench tighten bolt indicator 1-1/4 turns. Extruded clamps can be applied "hot" without taking them apart. No losing nuts or washers or fumbling for loose parts.
