SA193 Grade B8M Class-1 Allen Cap Screw (Socket Cap Screw) Full Threaded 1. Size : 1/2" UNC x 50 mm Length - 2000 pieces 2. Size : 1/2" UNC x 55 mm Length - 2000 pieces 3. Size : M12 x 50 mm Length - 2000 pieces 4. Size : M12 x 55 mm length - 2000 pieces SA193 Grade B8 Class-1 Allen Cap Screw (Socket Cap Screw) Full Threaded 1. Size : M8 x 30 mm Length - 10,000 pieces with EN 10204 3.1 + PED 97/23/EC certified manufacturer test certificate