Table 1 Descriptions and materials of the test parts
From: Uncertainty analysis of the coefficients of friction during the tightening process of bolted joints
Test part | Description/material | Remark |
|---|---|---|
Bolt | DIN 6921 M8 × 50 10.9 | Black chromated |
Nut | DIN 934 M8 8.8 | Black chromated |
Flat bar | S235JRC+C (EN 1.0122) | Surface polished |