Ideal Tridon 6780151 CLAMP 1/2IN 201/301 SIZE 80.

WORM GEAR 1/2″ HY-GEAR® 67-1 - 1/2″ Hy-Gear 67-1 clamps are suitable for most common household and automotive applications. The bands have clean punched rectangular perforations that hold strong and connect easily. Material Specifications: Screw: 5/16″ Hex Head; 410 Stainless - Housing: 200 Stainless - Band: 1/2″; 200 Stainless - Installation Torque: 35 in-lbs (4 Nm) Size: No. 80 Fits Hose with Inner Diameter of: Min (in)= 3-1/2, Max (in)=5-1/2, Min (mm)= 89, Max (mm)= 140.