Quantum Forge
1/2"-13 x 4-1/2" Grade 8 Hex Bolts (4-Pack) with Flat Washers & Nylon Lock Nuts – SAE J429 Coarse Thread Heavy-Duty Bolts for Automotive, Machinery & Construction 4.5"
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R 1,473
In stock
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Delivered in 10–20 working days —
Free shipping with 3 or more products in your cart
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Description
- Complete Bolt 4-packs: Includes 4 Grade 8 hex bolts, 4 hardened flat washers, 4 nylon lock nuts — everything you need for strong, vibration-resistant fastening in one convenient pack. Bolts 1/2" diameter x 4-1/2" long. Nuts and washers fit 1/2" bolts. Nylon rated for up to 250 degrees F. Bolts 150,000 psi min tensile strength.
- Grade 8 bolts and nuts deliver superior load capacity and shear strength. 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. Washers: SAE NT hardened RC 38-45, which is compatible with a Grade 8 fastening system. Nuts: Grade C Rc 24/32 SAE J995, compatible with Grade 8.
- Utimate Anti-Vibration Nylon Locking System: Washers help prevent loosening under torque, shock, and movement — perfect for equipment that sees constant vibration or cyclic loads.
- 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
QFG35146-FBA
Color
Yellow Zinc
Size
Nylon Lock Nut + Washer
Height
0.8 cm
Length
11.4 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.
