200-Pack M5 Stainless Steel Backup Washers (5.3mm ID), Large OD Structural Washers for 3/16" Pop Rivets, Trailer & Marine Hardware — 304 Stainless, Anti-Galvanic
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- M5 Size. 5.3mm Hole. For The Big Jobs. Built for 3/16" (4.8mm) pop rivets. The heavy hitter. If you're working on trailers or boats, grab these. Too big for crafts. Perfect for structure.
- 200 Pieces. One Box. Job Site Ready. 200 heavy-duty washers in a rugged case. No torn bags. No lost parts in the grass. Toolbox stays organized.
- Real 304. Fights Salt Spray. Real 18-8 stainless. Shrugs off road salt and sea spray. Aluminum washers belong on dry walls. Your boat trailer? No.
- Wide Surface. Stops Tear-Out. Spreads the load. When a standard rivet head tries to punch through soft material, this washer stops it cold. Prevents pull-through.
- Boats. Trailers. Racks. Fences. Marine hardware. Utility trailers. Roof racks. Fence panels. Anything exposed to weather or vibration.
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Select a product to estimate shipping.Need a reliable way to reinforce your projects? Tingheng’s 200-pack of M5 stainless steel backup washers are built to handle demanding applications, providing a secure and durable connection for your rivets. These washers are specifically designed for heavy-duty use in trailers, marine hardware, and other exposed environments.
Key Highlights
- Robust Construction: Made from 304 stainless steel, these washers are resistant to salt spray and road salt, ensuring long-lasting performance.
- Perfect Size for Pop Rivets: Designed for 3/16" (4.8mm) pop rivets, providing optimal support and preventing tear-out.
- Heavy-Duty Protection: Spreads the load of the rivet, preventing the head from punching through softer materials and ensuring a secure hold.
- Organized & Ready to Use: Comes in a durable, boxed container with 200 washers, keeping your job site organized.
- Ideal for Outdoor Applications: Specifically engineered for marine hardware, trailers, racks, fences, and other applications exposed to weather and vibration.
Useful Facts
- Material: 304 Stainless Steel
- Size: M5 (Inner 5.3mm, Outer 12.7mm)
- Outer Diameter: 0.5 inches
- Thickness: 0.04 inches
- Quantity: 200 Washers
Good Fit For
- Trailer Repair & Maintenance
- Marine Hardware Installation
- Utility Trailer Construction
- Fence Panel Assembly
- Roof Rack Reinforcement
Product details






| Main Specification | |
|---|---|
| Wytwórca | Tingheng |
| Liczba jednostek | 200 |
| Wykończenie zewnętrzne | Matte |
| Typ metalu | Stal nierdzewna |
| Średnica zewnętrzna | 0.5 Inches |
| Washer Type | Rivet Washers |
| Marka | Tingheng |
| Typ urządzenia mocującego | Rivet |
| Pozycja Grubość | 0,04 cala |
| Liczba części | 200 |
| Rozmiar mocującego | M5 |
| Materiał | Stal nierdzewna |
| Kolor | srebro |
| Pozycja Waga | 3.7 ounces |
| Product information | |
| Ustaw nazwę | 200 szt. |
| Technical Details | |
| Numer części | Th-m3rw |
| Wzór | Th-m3rw |
| Rodzaj materiału | Stal nierdzewna |
| Liczba pozycji | 200 |
| Kompatybilny średnica Groove | 0.2 inches |
| Style | |
| Zakończ typy | Matte |
| Measurements | |
| Pozycja Wymiary | 3.35 x 2.36 x 0.59 inches |
| Others | |
| Washer Compatibility | 3/16" (5mm) Pop Rivets or M5 Blind Rivets |
| Washer Application | marine or automotive or construction |
| Typ produktu | Rivet Washers |
| Rozmiar | M5(Inner5.3mm 0.21" ,Outer12.7mm 0.5") |








