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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"

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Product details

Management number 218074198 Release Date 2026/05/03 List Price US$9.90 Model Number 218074198
Category

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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