Quantum Forge
1/2"-13 x 1-1/2" Grade 8 Carriage Bolts (4-Pack) – Heavy-Duty Coarse Thread Bolts with Flat Washers & All Metal Prevailing Torque Lock Nuts –Round Head Square Neck SAE Anti-Vibration 1.5"
Free shipping with 3 or more products in your cart
Payflex: Pay in 4 interest-free payments of R315.00. Read the FAQ
R 1,260
In stock
Duties, insurance and VAT included
Delivered in 10–20 working days —
Free shipping with 3 or more products in your cart
Secure checkout
Your payment is fully protected
Duties & VAT included
No surprise charges at the door
Tracked delivery
Track your order end to end
Returns support
30-day return window
Description
- Complete 4-packs: Includes 4 Grade 8 carriage bolts, 4 hardened flat washers, 4 Grade C all metal lock nuts— everything you need for strong, vibration-resistant fastening in high heat environments one convenient pack. Bolts 1/2" diameter x 1-1/2" long. Nuts and washers fit 1/2" bolts. Grade C nuts compatible with Grade 8 bolts.
- Grade 8 Strength for Demanding Jobs: High-tensile SAE J429 Grade 8 bolts and nuts deliver superior load capacity and shear strength, making this kit ideal for automotive, trailer, machinery, and structural applications. All washers are hardened, which is compatible with a Grade 8 fastening system. Threads are made to the requirements of ASME B1.1. ASME B18.5 Dimensional Requirements. SAE J429 Material and Strength Level. ASTM F788 Surface Discontinuities. ASME B18.18 Inspection and Quality Assurance. All-metal lock nuts are: IFI 100/107 for Grade C which is designed to be used on fasteners up to a Grade 8 strength level. Proof load strength 150,000 psi. Hardness Rc 24/32.
- Ultimate Anti-Vibration All Metal Locking System: washers help prevent loosening under torque, shock, and movement — perfect for equipment that sees constant vibration or cyclic loads. All metal lock nuts can be used in high temperature applications.
- 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
QFG35157-FBA
Color
Yellow Zinc
Size
1/2" x 1-1/2" All Metal Lock Nut Set
Height
0.5 cm
Length
3.8 cm
Width
2 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.


