This listing is for Twenty (20) new M3-0.50 x 4mm Socket Set / Grub Screws with a Cup PointDiameter : M3 / 3mmThread Pitch : 0.50 - UNC / Coarse ThreadLength : 4mmPoint : CupDrive : M1.5 / 1.5mm Hex Key - Available hereType : Set / Grub ScrewMatching Nut & Washers: M3 - Available hereSystem of Measurement : MetricMaterial : Black Alloy Steel 45H - Class 14.9* - Extreme Strength -Specifications : DIN 916 / ASTM F912M * Hardness of 450 HV min - Grade 14.9 Black Alloy Steel (Quenched and Tempered)
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