BS EN 14399 Part 5: Plain Washer
| Mechanical Properties | Requirement |
|---|---|
| Vickers hardness | 300 HV to 370 HV |
BS EN 14399-5: High-strength structural bolting assemblies for preloading. Plain washers
BS EN 14399 Part 6: Plain Chamfered Washer
| Mechanical Properties | Requirement |
|---|---|
| Vickers hardness | 300 HV to 370 HV |
BS EN 14399-6: High-strength structural bolting assemblies for preloading. Plain chamfered washers
BS EN 14399 Part 9: Nut Face Washer / Bolt Face Washer
| Mechanical Properties | Requirement |
|---|---|
| heat treatment | hardened and tempered |
| Rockwell hardness | 38 HRC to 45 HRC |
| Vickers hardness | 372 HV30 to 448 HV30 |
BS EN 14399-9: High strength structural bolting for preloading. System HR or HV. Direct tension indicators for bolt and nut assemblies
BS EN 14399 Part 9: Direct Tension Indicators (DTI)
| Mechanical Properties | Requirement |
|---|---|
| Heat treatment | hardened and tempered or controlled rolled and tempered |
| Maximum hardness | 380 HV (~38.8 HRC) |
BS EN 14399-9: High strength structural bolting for preloading. System HR or HV. Direct tension indicators for bolt and nut assemblies
Washers to be used with BS EN 14399 High-strength structural bolting assemblies for preloading. System HR or HV.
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