M6 x 1.0 A2-70 (Metric thread)
The M6 x 1.0 A2-70 is a ISO metric threaded fastener with a 1 mm thread pitch. It develops a maximum recommended assembly torque of 7.9 Nm dry, a single-shear capacity of 8.4 kN, and a minimum tensile strength of 700 MPa. It is manufactured from austenitic A2 / 18-8 stainless steel with good corrosion resistance and non-magnetic behaviour.
Fastener Specifications
| Specification | Value |
|---|---|
| Thread System | Metric |
| Designation | M6 x 1.0 |
| Thread Pitch | 1 mm |
| Property Class / Grade | A2-70 |
| Material | Stainless 304 |
| Tensile Strength | 700 MPa |
| Max Assembly Torque | 7.9 Nm |
| Shear Strength (single) | 8.4 kN |
Thread & Grade Notes
M6 x 1.0 is a Metric thread. A2-70 fasteners are a medium-strength grade with a minimum tensile strength of 700 MPa. Thread pitch of 1 mm determines how many turns are required to engage a given length and how resistant the joint is to loosening through vibration.
- Preload: torque to roughly 65–70% of proof load (≈ 7.9 Nm dry).
- Shear joints: a single bolt in shear carries about 8.4 kN before failure; use multiple fasteners or larger sizes for higher loads.
- Corrosion: matching fastener and structure materials avoids galvanic corrosion, especially with stainless in chloride environments.
Tightening & Substitution Notes
Always torque to the value specified by the joint engineer; the 7.9 Nm figure here is a generic dry assembly target. When substituting, match the thread system (Metric), pitch (1 mm), grade (A2-70), and at minimum the shear capacity (8.4 kN). A lower-grade fastener in the same size reduces both preload and shear capacity; stainless grades trade some strength for corrosion resistance and are prone to galling.
Frequently Asked Questions
What is the thread pitch of the M6 x 1.0?
1 mm.
How much torque does an M6 x 1.0 A2-70 bolt take?
Approximately 7.9 Nm dry assembly torque.
What is the shear strength of the M6 x 1.0 A2-70?
About 8.4 kN in single shear.
What is the tensile strength of the M6 x 1.0 A2-70?
700 MPa minimum.
What material is the M6 x 1.0 A2-70?
Stainless 304.