5/16 UNC x 1 1/2 A2 ST/ST HEX HD BOLT SHONC0310150
5/16 UNC x 2 A2 ST/ST HEX HD BOLT SHONC0310200
5/16 UNC x 3 A2 ST/ST HEX HD BOLT SHONC0310300
5/16 UNC x 3.1/2 A2 ST/ST HEX HD BOLT SHONC0310350
5/16 UNC x 4 A2 ST/ST HEX HD BOLT SHONC0310400
from Kerridge Commercial Systems Ltd