Published on September 19, 2018. Bulk Hose Clamps Stainless Steel 56. Wholesale high pressure stainless steel us type hose clamp, hose clamp # 12, stainless steel, 1/2" x 1 1/4", bulk. Hose clamp # 64, stainless steel, 2 1/2" x 4 1/2", bulk. Travel Roach.