2、Fine 螺母 >> 美制重型螺母Heavy hex nuts and heavy hex jam nuts 执行标准:ANSI/ASMEB18.2.2 材质:碳钢、合金钢、不锈钢单位:inch规格对边s厚度m1(heavyhexnuts)厚度m(heavyhexjamnuts)1/41/215/6411/645/169/1619/6413/643/811/1623/6415/647/163/427/6417/641/27/831/6419/649/1615/1635/6421/645/81-1/1639/6423/643/41-1/447/6427/64