GB/T 70.2-2008

Hexagon socket button head screws

GB/T 70.2-2015

Hexagon socket button head screws

ISO 7380-2004

Hexagon socket button head screws

BS 2470-4-1973

UN hexagon socket button head screws-Table 4

JIS B1174-1994

Hexagon socket button head screws

JIS B1174-2006

Hexagon socket button head screws

NF E25-109-2001

Hexagon socket button head screws

NF E25-126-2004

Hexagon socket button head screws

NF E25-126-1997

Hexagon socket button head screws

NF E25-109-1983

Hexagon socket button head screws

NF E25-109-2011

Hexagon socket button head screws

GB/T 70.2-2000

Hexagon socket button head screws

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

ISO 7380-1997

Hexagon socket button head screws

JIS B1174-2017

Hexagon socket button head screws

JIS B1174-2000

Hexagon socket button head screws

BS 2470G-4-2017

BS hexagon socket button head screws-Table 4

ISO 7380-1-2022

Hexagon socket button head screws