BS 2470-2A-1973
UN hexagon socket plain heads cap screws-Table 2A
BS 2470-3-1973
UN hexagon socket countersunk head screws-Table 3
BS 2470-4-1973
UN hexagon socket button head screws-Table 4
BS 2470-2A-2004
UN hexagon socket plain heads cap screws-Table 2A
BS 2470-2A-2012
UN hexagon socket plain heads cap screws-Table 2A
BS 2470-2A-2017
UN hexagon socket plain heads cap screws-Table 2A
BS 2470-3-2004
UN hexagon socket countersunk head screws-Table 3
BS 2470-3-2012
UN hexagon socket countersunk head screws-Table 3
BS 2470-3-2017
UN hexagon socket countersunk head screws-Table 3
BS 2470-4-2004
UN hexagon socket button head screws-Table 4
BS 2470-4-2012
UN hexagon socket button head screws-Table 4
BS 2470-4-2017
UN hexagon socket button head screws-Table 4
BS 2470G-2A-2017
UN hexagon socket plain heads cap screws-Table 2A
