M4 8 M4 10 M4 13 M4 16 M4 20. 304 stainless steel blind rivets countersunk head/flat head rivets studs. M3 6 M3 8 M3 10 M3.2 6.4 M3.2 8 M3.2 10 M3.2 12. M5 8 M5 10 M5 13 M5 16 M5 20. Moderate work hardening rate, suitable for general cold working and drawing, good cold working performance, commonly used in hexagonal screws, nuts and washers products.
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