Plug Basic Material Metal Body Material 316 Stainless Steel Connection Type A-LOK(r) Tube Size 5/8 In. Compression Thread Size 7/8-20 Hex Size 1 In. Temp Range -425 Degrees to 1200 Degrees F Standards ASME-SA-479 TYPE 316-SS BS970 316-S31 DIN 4401 ASTM A276 Type 316