Full threaded G. I. Hexagonal Head Bolt with Nut 5x40 mm with one plain washer and one spring washer, grade 4. 6 as per IS: 4. 6 as per IS: 1363 ( PART- 2 ) 2002 & IS: 1363 ( part- 3 ) or latest. ( To be supplied in assembled condition ). as per Drg. No. Full threaded G. I. Hexagonal Head Bolt with Nut 5x specn: Full threaded G. I. Hexagonal Head Bolt with Nut 5x40 mm with one plain washer and one spring washer.