STEELSOFT 14 PCS worm clamp assortment kit are made of all 304 stainless steel to provide dependable and long lasting use. These non-perforated band hose clamps are based on the popular general purpose worm gear hose clamps, but engineered to prevent hose damage during using. The embossed band with rolled-up edge design is perfect for silicone, PVC or rubber soft hoses, protecting them from extruding or shearing. The free torque of our worm drive hose clamps are designed in a neutral level so that the tension can be maintained after initial installation. The welded one-piece housing is much stronger than other embedded buckle structure which is easily stripping out. 7 sizes stainless hose clamps assortment include: 2 pcs 5/16 to 1/2 inch, 3/8"(9mm) band width, mini size#4 2 pcs 3/8 to 5/8 inch, 3/8"(9mm) band width, micro size#4 2 pcs 1/2 to 3/4 inch, 3/8"(9mm) band width, size#6 2 pcs 5/8 to 1-1/16 inch, 1/2"(12mm) band width, size#10 2 pcs 1 to 1-5/8 inch, 1/2"(12mm) band width, size#16 2 pcs 1-1/4 to 2 inch, 1/2"(12mm) band width, size#24 2 pcs 2 to 2-3/4 inch, 1/2"(12mm) band width, size#36 Total Quantity: 14 PCS Band Thickness: 0.024" Material: All 304 stainless steel(including screw) Neutral Salt Spray Test: 100 hours Screw Hex Size: All 5/16" Failure Torque: 60 lb-in Recommended Installation Torque: 30-35 lb-in Service Temperature: -22? to +338? NonStripping The band of our hose clamp kit is thick and nonperforated. Most typical hose clamps are thin and perforated whichs easy to deform and strip the perforations if the screw clamp is overtorqued. The buckle bottom is welded into onepiece housing for higher tensile strength. These hose clamps are heavy duty to provide superior clamping force for solid safe seal Hose Protection As our 4th picture, the rolledup band is to prevent metal edge cutting into the soft hosessilicone, pvc or rubber. This is a safe design to eliminate hose damage when final torquing, especially for fuel line gas line, heater and automotive projects. NonPerforated Solid Band Our nonperforated band is virtually impervious to overtightening, deformed and stripping. The thicker metal is less vulnerable to stress cracking, so the life of metal clamps can last longer. The embossed band also protects the soft hoses from shearing or extruding cheesegrater makes you hard to remove the tubing clamps out of hoses. NonMetric Sizes The slotted screw HEX head is 516. Compared with other metric size adjustable hose clamps, our hose clips clamps were engraved clear inch sizes on band for easy and fast identification when using. This hose clamp set include 7 sizes 2 PCS each of 516 to 12, 38 to 58, 12 to 34, 58 to 1116, 1 to 158, 114 to 2 and 2 to 234. Hose Clamps Stainless Steel The housing, screw and band of our metal hose clamps are all made of high quality 304 SS. The neutral salt sprayNSS test is 100 hours. These worm drive hose clamps are compatible with SAE J 1508 standards. Note The screw is made of 304 stainless steel as well. The screw surface is coated with zinc to prevent metal grinding and micro welding when clamp is torqued at high speed, especially for electric screwdriver. We guarantee all built with 304 SS. Note The screw is made of 304 stainless steel as well. The screw surface is coated with zinc to prevent metal grinding and micro welding when clamp is torqued at high speed, especially for electric screwdriver. We guarantee all built with 304 SS.