BS +A 401-420:2015

BS A 401-420:2015 specifies the dimensions, materials, protective finishes andpart numbers for 100° countersunk head and pan head screws with unifiedthreads for non-structural general aerospace use.Cross References:ASD-STAN TR 3775BS 1134BS 1473BS 1580-3BS 1872 BS 6338BS A 100BS L 102BS L 168BS S 80BS S 129BS S 130BS S 142BS S 147BS S 148BS S 154BS S 158BS EN 755-2BS EN 2100BS EN 2133BS EN 2284BS EN 2398BS EN 2399BS EN 2516BS EN 3911BS EN 4826BS EN 12163BS EN 12164BS EN 12166BS EN ISO 898-1SAE AMS 03-19SAE AMS 03-25SAE AMS 2417BS A 204 ? BS A 221BS A 273:1978BS EN ISO 10664SAE ITC RS440ASD-STAN TR 4070AIA NAS1800AIA NAS9800ASME B18.6.3:2013