CYLINDRICAL NUT APPLICATION: GENERAL USE MANUFACTURER / SUPERBOLT REFERENCE: SJX-M30-2/W ADDITIONAL INFORMATION ENGRAVE OR LABEL, WITH ORIGINAL LABEL, MANUFACTURER’S NAME/NUMBER, WITHOUT WHICH WE WILL RETURN. ADDITIONAL CHARACTERISTICS: FABRICATION MATERIAL: SAE-4140 STEEL – TEMPERED AND TEMPERED; OUTER DIAMETER: 63.00 MM; HEIGHT: 23.00 MM