Quantum Forge

1/2"-13 x 1-3/4" Grade 8 Bolts (4-Pack) – Heavy-Duty Hex Bolts with All Metal Lock Nuts – High-Strength SAE Prevailing Torque Anti-Vibration 1.75" Coarse Bolts for Automotive, Machinery & Construction

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R 945
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Delivered in 10–20 working days —
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Description

  • Complete All Metal Lock Nut High Temp 4-packs: Includes 4 Grade 8 hex bolts, 4 all metal prevailing torque lock nuts— everything you need for strong, vibration-resistant fastening in one convenient pack. Bolts 1/2" x 1.75" long. Nuts fit 1/2" bolts.
  • High-tensile SAE J429 Grade 8 bolts. Bolts: Threads are made to the requirements of ASME B1.1. ASME B18.2.1 Dimensional Requirements. SAE J429 Material and Strength Level. ASTM A564 Material and Strength Level. ASTM F788 Surface Discontinuities. ASME B18.18 Inspection and Quality Assurance. Nuts: IFI 100/107 for Grade C, Rc 26/36 for fasteners up to a Grade 8 strength level.
  • Utimate Anti-Vibration All Metal Locking System: Work in high-temperature environments. Perfect for equipment that sees constant vibration or cyclic loads, and has a high temp.
  • Precision-Matched Components: All fasteners are 1/2"-13 UNC for reliable fit and consistent clamping force across every assembly — no mismatched hardware, no guesswork.
  • Built for Pros & Serious DIYers: Whether you’re repairing equipment, building fixtures, or assembling heavy components, this kit delivers industrial-grade reliability in a compact, easy-to-store format.
Technical Specifications
Manufacturer
Quantum Forge
Model
QFG36078-FBA
Color
Yellow Zinc
Size
All Metal Lock Nut
Height
1 cm
Length
4.4 cm
Width
1.9 cm
Shipping & Delivery

Your order is shipped from the USA and delivered to your door in South Africa in 10–20 working days. All items are fully tracked.

Returns & Exchanges

We offer a 30-day return window. If something isn't right, contact our support team and we'll make it right.