Fullerkreg 0.7mm Pitch M4 x 12MM Socket Head Cap Screws, Allen Socket Drive, Din 912, AISI 304 Stainless Steel (18-8), Full Thread, Bright Finish, Machine Thread, Quantity 100: Amazon.com: Industrial & Scientific
NORMACLAMP FBS-HC DIN 3021 Spring Band Hose Clamp W1 - 12 mm. Width | IQ-Parts-Shop
Amazon.com: STEELSOFT DIY Hose Clamp System Kit, 9.8 FT Band + 6 Fasteners, 304 Stainless Steel Band Clamp Pipe Clamp Screw Clamp Metal Hose Clamp Large Adjustable for Ductwork, Pole Mount, Metal