Size：M2,M2.5,M3,M4,M5,M6,M8,M10,M12,M14,M16,M18,M20,M22,M24,M27,M30. M2 Thread Pitch 0.4mm. M2.5 Thread Pitch 0.45mm. Material：A2 304 Stainless Steel. A2 stainless is commonly referred to as 304 or 18/8 because it contains 18% chromium and 8% nickel.
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