1/2-13 Serrated Flange Nuts (25 Pack) – Grade 8 Mechanical Locking Nuts Coarse Thread for Vibration & Shock Where Nylon Can’t Be Used SAE J995 0.5"
Product details
| Management number | 218074198 | Release Date | 2026/05/03 | List Price | $9.90 | Model Number | 218074198 | ||
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These 1/2-13 Serrated Flange Nuts provide SAE Grade 8 mechanical locking performance without nylon inserts. The serrated flange grips the mating surface to resist loosening caused by vibration and shock. Ideal for trailers, frames, off-road equipment, and structural assemblies, these nuts combine load distribution and locking action in a single all-metal design.
- SAE Grade 8 Alloy Steel: Built for strength, durability, and resistance to loosening under load. SAE J995. 25-pack.
- Mechanical Locking Serrations: Serrated flange bites into the mating surface to resist vibration and shock.
- No Nylon Insert: Suitable for applications where heat or environment makes nylon undesirable.
- Built-In Washer Function: Combines locking action with load distribution—no separate washer needed.
- Standard 1/2-13 Coarse Thread: Designed for common coarse-thread bolts used in heavy-duty assemblies. ASME B18.2.2 Dimensional Requirements. SAE J995 Material and Physical Properties. ASME B1.1 Thread Requirements. ASTM F812 Surface Discontinuities. ASME B18.18 Inspection and Quality Assurance. HRC 25/36.
| Brand | Quantum Forge |
|---|---|
| Color | Gold |
| Model | QFG36054-FBA |
| Set Name | Serrated Flange Nut – 25 Pack |
| Size Name | 1/2-13 |
| Metal Type | Alloy Steel |
| Unit Count | 25.0 Count |
| Part Number | QFG36054-FBA |
| Thread Size | 1/2"-13 |
| Thread Type | Unified National Coarse (Unc) |
| Finish Types | Zinc Plated |
| Grade Rating | Industrial |
| Manufacturer | Quantum Forge |
| Thread Class | Coarse |
| Thread Style | Right Hand |
| Fastener Type | Flange |
| Item Diameter | 0.5 Inches |
| Material Type | Alloy Steel |
| Exterior Finish | Zinc |
| Item Dimensions | 0.46 x 0.75 x 0.46 inches |
| Number Of Items | 25 |
| Thread Coverage | Fully Threaded |
| Number of Pieces | 25 |
| Screw Head Style | Serrated Flange |
| Maximum Shear Strength | 150,000 psi proof load strength |
| Compatible Groove Diameter | 0.5 Inches |
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