
Hexagon Head Screws - Product Grades A and B
DIN EN ISO 4017 - 2014
①,Material: a)Steel, Property class: d < 3 mm by agreement;3 mm≤ d≤ 39 mm: 5.6, 8.8, 9.8, 10.9;d> 39 mm by agreement;3 mm≤ d≤ 39 mm according to ISO 898-1, other class by agreement b)Stainless steel, Property class: d≤24 mm: A2-70, A4-70;24 mm < d≤39 mm: A2-50, A4-50;d > 39mm by agreement;d≤39mm: ISO 3506-1;d >39mm by agreement c)Non-ferrous. Materials are specified in ISO 8839. |