1/4 UNC x 1 1/2 A2 ST/ST HEX HD BOLT SHONC0250150
1/4 UNC x 2 A2 ST/ST HEX HD BOLT SHONC0250200
1/4 UNC x 3 A2 ST/ST HEX HD BOLT SHONC0250300
from Kerridge Commercial Systems Ltd