1/2 UNC x 5 Gr S HT HEX BOLTS S/COL HHONC0500500
1/2 UNC x 5 1/2 Gr S HT HEX BOLTS S/COL HHONC0500550
1/2 UNC x 6 Gr S HT HEX BOLTS S/COL HHONC0500600
1/2 UNC x 6 1/2 Gr S HT HEX BOLTS S/COL HHONC0500650
1/2 UNC x 7 Gr S HT HEX BOLTS S/COL HHONC050700
from Kerridge Commercial Systems Ltd