BSF 5/8" Zylinderschraube mit Innensechskant hochfest 12,9 DIN912
BSF 5/8" Socket Cap Screw High Tensile 12.9 DIN912 BSF 5/8", Allen/ Hexagon Socket, Cap Head, Screw/ Bolt, High Tensile (12.9), BS 2470. What is a socket cap screw/ bolt?. A screw is fully threaded and a bolt is partialy threaded.