Related Specifications
Surface Treatments
Certifications
- ISO 9001 - 2015 Certified
- PED 2014/68/EC
- NACE MR0175/ISO 15156-2
- NORSOK M-650
- DFAR
- MERKBLATT AD 2000 W2/W7/W10
ASTM F436/F436M Type 3 Extra Thick washers are heavy-duty weathering steel washers designed for applications requiring increased thickness and enhanced load-bearing capacity. Their robust construction ensures improved stress distribution and resistance to deformation, while the weathering steel composition provides long-term durability in corrosive environments.

| Nominal WasherD Size Inch | Thickness Standard (T) Inch | Thickness Extra Thick (T) Inch | ||
|---|---|---|---|---|
| min | max | min | max | |
| 1/2 | 0.097 | 0.177 | 0.305 | 0.375 |
| 9/16 | 0.110 | 0.177 | 0.305 | 0.375 |
| 5/8 | 0.122 | 0.177 | 0.305 | 0.375 |
| 3/4 | 0.122 | 0.177 | 0.305 | 0.375 |
| 7/8 | 0.136 | 0.177 | 0.305 | 0.375 |
| 1 | 0.136 | 0.177 | 0.305 | 0.375 |
| 11/8 | 0.136 | 0.177 | 0.305 | 0.375 |
| 11/4 | 0.136 | 0.177 | 0.305 | 0.375 |
| 13/8 | 0.136 | 0.177 | 0.305 | 0.375 |
| 11/2 | 0.136 | 0.177 | 0.305 | 0.375 |
| 13/4 | 0.178B | 0.28B | 0.305 | 0.375 |
| 2 | 0.178B | 0.28B | 0.305 | 0.375 |
| 21/4 | 0.24C | 0.34C | 0.305 | 0.375 |
| 21/2 | 0.24C | 0.34C | 0.313 | 0.375 |
| 23/4 | 0.24C | 0.34C | 0.313 | 0.375 |
| 3 | 0.24C | 0.34C | 0.313 | 0.375 |
| 31/4 | 0.24C | 0.34C | 0.313 | 0.375 |
| 31/2 | 0.24C | 0.34C | 0.313 | 0.375 |
| 33/4 | 0.24C | 0.34C | 0.313 | 0.375 |
| 4 | 0.24C | 0.34C | 0.313 | 0.375 |
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