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Premium 1 3/4" SS304 Countersunk Machine Screws for Factories. OEM/ODM Customization: Full customization from samples, designs, or minor adjustments available. Premium Material: Made of SS304 Stainless Steel with A2-70/A4-70 grades for high durability. Certified Quality: CE, SGS, and ISO9001 certified ensuring high practicability and safety. Wide Size Range: Available in lengths from 3mm to 100mm with various thread specifications. Fast Delivery: Standard delivery time is 7-15 working days for efficient supply chain. Professional Manufacturer: Over 20 years experience in metal products with 23 employees and 12798 sqm plant.