... strength: Mpa quartile 1220 (magnitude 12.9) .3, Tension loading: N quartile 40600 N.4, Adjusting quality: HRC34 °- 39 ... .We supply various dimension track shoe bolt ,which are used for caterpillar, komatsu, hitachi, kobelco, daewoo, kato, hyundai, samsung, ... tensile Description(TC bolt) Torshear type high strength bolts for steel structureMaterialAlloy steel ,carbon steel, stainless steel etc.SizeM16 ...