... sample production .TRACK BOLT & NUT listPART no. PART NAME SIZE 2A3223 TRACK BOLT 1/2' -20UNFX47 7H3596 TRACK BOLT 9 ... for bolted connections with CE certifation 1.high strength track shoe bolt 2.Heat flush bolt3.40Cr Bolt4.excavator and ... track shoe bolt ,which are used for caterpillar, komatsu, hitachi, kobelco, daewoo, kato, hyundai, samsung, sumitomo, mitsubishi, etc.Specifications Size from ...