Imperial Grades
Grade 5
Tensile Strength = 120,000 lbs/in²
Designated by 3 radial lines on the head (refer AS 2465)
Grade 8
Tensile Strength = 150,000 lbs/in²
Designated by 6 radial lines on the head (refer AS 2465)
Metric Classes
Property Class 8.8
Tensile Strength = 800 Mpa
On metric high tensile bolts the relevant property class is indicated on the head (refer AS1110).
Class 10.9
Tensile Strength = 1,000 Mpa
On metric high tensile bolts the relevant property class is indicated on the head (refer AS1110)
Stainless Steel
304 (A2) Stainless Steel
Tensile Strength = 700 Mpa
General purpose stainless steel with good resistance to corrosion.
316 (A4) Stainless Steel
Tensile Strength = 700 Mpa
Marine grade stainless steel with high resistance to corrosion.
Structual Assemblies Class 8.8
Tensile Strength = 800 Mpa
On structual bolts bolts the relevant property class is indicated on the head (refer AS1252)
Grade 9
Tensile Strength = 180,000 lbs/in²
Designated by 9 radial lines on the head (refer AS 2465)
316 (A4) Stainless Steel
Tensile Strength = 800 Mpa
High Tensile stainless steel with high resistance to corrosion.