Mechanical properties - Stainless Steel Fasteners

Screws and Bolts up to M6

 
Type Grade Nominal Size Property Class
50 70 80
Minimum Breaking Torque N/mm²
Austenitic A1 A2 A4 M1.6 0.15 0.2 0.27
M2 0.3 0.4 0.56
M2.5 0.6 0.9 1.2
M3 1.1 1.6 2.1
M4 2.7 3.8 4.9
M5 5.5 7.8 10
 

Screws, Bolts and Nuts from M6

 
Type Grade Property Class Nominal Size Bolts and Screws Nuts
Minimum Tensile Strength N/mm² Minimum Proof Stress N/mm² Minimum Elongation at fracture mm Proof Load Stress (sp) N/mm²
Austenitic A1 A2 A4 50 M6 - M39 500 210 0.6 x Nom. Dia. 500
70 M6 - M20 700 450 0.4 x Nom. Dia. 700
80 M6 - M20 800 600 0.3 x Nom. Dia. 800


Note: Due to the fact that fastening applications differ greatly, the above information is for guidance only and is correct to the best of our knowledge. The customer must satisfy themselves with the performance of the fastener and validity of the data. TR Fastenings will not be held responsible for any failure that may occur from the use of this information.