Pro Tie 33722 Assortment All Stainless Steel Hose Clamp Pack with Range 1/4" to 2-3/4" (10 Piece) Assortment Includes: (2) SAE Size 4 Mini, (1) SAE Size 6, (3) SAE Size 12, (3) SAE Size 20, and (1) SAE Size 36 Hose Clamps Band, housing, and screw are all stainless steel Low Range: 1/4-Inch High Range: 2-3/4-Inch Screw Size: 6 mm slotted hex head for Mini, 8 mm slotted hex head for regular duty