ID 3mm + 0.10mm to + 0.02mm OD 16mm Width 9mm, M3 Din 912 Cap Screw, Grade 304 A2 Stainless Steel,3mm Two Piece Clamp Type Collars. ID 4mm + 0.10mm to + 0.02mm OD 16mm Width 9mm, M3 Din 912 Cap Screw, Grade 304 A2 Stainless Steel,4mm Two Piece Clamp Type Collars.
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