Thread Size：M3,M4,M5,M6,M8,M10,M12,M14,M16,M18,M20，M24,M30. M8： thread pitch 1.25mm. M10： thread pitch 1.5mm. M4： thread pitch 0.7mm. Standard：DIN 580. Stainless Steel Lifting Eye Bolt Bolts. A2 stainless is commonly referred to as 304 or 18/8 because it contains 18% chromium and 8% nickel.
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