Chenango Supply 5/8" Grade 8 Flat Washers, Hardened Alloy Steel, Yellow Zinc Chromate Finish, USS Heavy Duty Washers for 5/8-11 Hex Bolts, 10 Pieces (5/8 Flatwasher)
Product details
| Management number | 218131700 | Release Date | 2026/05/03 | List Price | US$10.80 | Model Number | 218131700 | ||
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Grade 8 hardened steel 5/8"" flat washers engineered for heavy machinery, automotive repair, agricultural equipment, and industrial fastening applications where load distribution and surface protection are required. Specifications Material: Hardened alloy steel Grade: Grade 8 Inside diameter: 5/8 inch (fits 5/8-11 bolts) Finish: Yellow chromate zinc Quantity: 10 pieces Performance & Application Explanation These flat washers are manufactured from hardened alloy steel to Grade 8 specifications, delivering the load-bearing capacity required to match Grade 8 hex bolts in high-stress assemblies. The increased bearing surface distributes clamp force across a wider area, preventing bolt head embedment in softer materials and reducing the risk of joint loosening. Yellow chromate zinc coating offers corrosion protection while matching the finish of Grade 8 yellow zinc hardware. Hardened construction resists deformation under high torque loads. B2B Use Cases Applicable for heavy equipment repair, automotive and truck maintenance, agricultural machinery, construction equipment, fabrication shops, frame assemblies, and industrial fastening tasks requiring hardened washers to complement Grade 8 bolt installations. Quality & Trust Reassurance Dimensional sizing and material hardness align with Grade 8 standards for accuracy and durability. Designed for mechanics, maintenance crews, and fabricators seeking reliable hardened flat washers to pair with Grade 8 bolts in demanding applications where proper load distribution is essential.
- GRADE 8 HARDENED STEEL CONSTRUCTION – Hardened alloy steel delivers high load-bearing capacity, preventing bolt head embedment and surface damage when paired with Grade 8 hex head cap screws in heavy-duty applications.
- 5/8" USS SIZE SPECIFICATION – Standard 5/8 inch inside diameter fits 5/8-11 hex bolts and cap screws, providing proper load distribution for heavy machinery, automotive, and structural fastening applications.
- YELLOW CHROMATE ZINC COATING – Corrosion-resistant finish matches Grade 8 bolt hardware, protecting against moisture and environmental exposure in outdoor, industrial, and equipment repair environments.
- chenango Supply 5/8" Grade 8 Flat Washers, Hardened Alloy Steel, Yellow Zinc Chromate Finish, USS Heavy Duty Washers for 5/8-11 Hex Bolts, 10 Pieces
- 10-PIECE PACK FOR MAINTENANCE AND REPAIR – Quantity supports equipment repair, fabrication projects, fleet maintenance, and MRO operations requiring hardened flat washers for demanding fastening tasks.
| Brand | Chenango Supply |
|---|---|
| Color | Silver |
| Model | 03-10 |
| Head Type | Hex |
| Size Name | 5/8 Flatwasher |
| Metal Type | Alloy Steel |
| Unit Count | 10.0 Count |
| Part Number | 03-10 |
| Thread Size | 5/8-11 |
| Thread Type | Coarse Thread |
| Drive System | External Hex |
| Finish Types | Zinc Plated |
| Grade Rating | Grade 8 |
| Manufacturer | Chenango Supply |
| Thread Style | Right Hand |
| Fastener Size | 5/8 |
| Fastener Type | Hexagon Bolt |
| Item Hardness | Grade 8 |
| Material Type | Alloy Steel |
| Exterior Finish | Zinc |
| Thread Coverage | Unthreaded |
| Number of Pieces | 10 |
| Screw Head Style | Hex |
| Screw Point Style | Hex |
| Manufacturer Grade | Grade 8 |
| Compatible Groove Diameter | 0.63 Inches |
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