Screw m5x8.66. 016 gost 1476-75 or equivalent: grub screw c. m5x8 to is: 2388 pitch 0.8 to is: 4218(pt-i,lock pin 2np 22ax10 oct 3-2234-80,lock pin 4 pr. 22a x 14 to ost 3.2234-80.,lock pin 6p p2 2ax25 to ost 3-2234-80,pin 3h8x25 to is: 2393-80(clause2.2) , equivalent material 30c8 to is: 5517-93 hb 255-207(dia 3.8-4.2),pin 6h8 x 25 to is: 2393(clause 2.2) or gost: 3128-70, 2 chamfers eq. mat 30c8 to is: 5517-93. hb-255-207,pin 3h8 x 16 to is 2393-80 clause 2.2 or gost 3128-70, two side chamfers. material: 30c8 to is: 5517-,pin 4h8x18 to gost 3128-70, 2 champers or is: 2393-80(clause2.2) equivalent material 30c8 to is: 5517-9,pin 5h8x22 to is: 2393-80 (clause 2.2) equivalent material 30c8 to is: 5517-93 hb 255-207(dia 3.8 - 4.