Description :5/8 inch (15.87 mm) dia Zinc plated/Galvanized Lock bolts with collar (part no.-2016) with grip range\r24- 31mm. One set consisting of 1 no. lock bolt & 1 no. collar as per drawing No. RDSO Drg. WD-11036-S-01,\rAlt 1 and WD- 11036-S-02 Alt. Nil. Base metal- Steel. ASTM B633 and ASTM B695 and ASTM B117 minimum\r48 Hrs; Lock bolt should have a hardness in a range of 28-34 HRC and Collar have a hardness in a range of 60-\r80 HRC.All other technical requirements will be as per RDSO Drawing No. WD-11036-S-01 Alt 1 and WD-11036-\rS-02 Alt Nil.
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