Studs: according to ASME Sec. II Part A Ed.2019 Stainless steel SA-193 B8 Class 1, and SA-962 carbide solution treated 16 studs M12 x 30mm according to ASME B1.13M - latest Edition- metric screw threads with grade 6G tolerances 4 studs M6 x 15mm according to ASME B1.13M - latest Edition- metric screw threads with grade 6G tolerances Material Test Report according to DIN EN10204 – 2005: 3.1 with mechanical testing according to SA-370 and a statement that the: “Material / parts were manufactured, sampled, tested, and inspected in accordance with the requirements of the product specification SA-193 Ed.2019”