牌號(hào) | A449 Type 3-B |
對(duì)應(yīng)標(biāo)準(zhǔn) | ASTM A449-2014
通用最低拉伸強(qiáng)度為120/105/90ksi的熱處理鋼制六角帽螺釘, 螺栓和螺柱的標(biāo)準(zhǔn)規(guī)范 Hex cap screws, bolts and studs, steel, heat treated, 120/105/90 ksi minimum tensile strength, general use |
歸類 | 合金鋼 |