标准号:BS2A266to2A271-2016+A1-2019
英文标准名称:AerospaceSeries-Bolt,100°Countersunkhead,Hi-Torquespeeddriverecess,closetoleranceshank,UNJFthread,splitpinholeoption,titaniumalloy,variousfinishes-Classification-R$dm1100–1250MPa(160000–180000lbf/in$u2)atAmbientTemperature|+315°C
国际标准分类号:49.030.20
部分代替标准:BSA266;A267[---]-1977