Ravi from Delhi, 35, working on motorcycle repairs, faced nuts loosening due to vibration.
Hillman lock nuts with nylon insert provided a secure fit, lasting through daily rides, saving ₹ on replacements, arrived in 11-13 days.
You save 1,700 (29%)
Estimated doorstep delivery by 23 Nov - 25 Nov from USA






Reliable Locking at a Competitive Price
Hillman Coarse Thread Hex Lock Nuts are engineered for secure fastening in mechanical and construction projects. Made from durable alloy steel with a zinc coating, these lock nuts feature a nylon insert that grips bolt threads tightly, preventing loosening due to vibration or movement. Widely used in automotive repairs, machinery assembly, and structural applications, they ensure reliable performance in indoor and light outdoor environments. Each pack contains 50 lock nuts, suitable for contractors, mechanics, and DIY enthusiasts working on equipment or structural projects. The zinc finish offers moderate rust resistance, maintaining performance over time.
These lock nuts are compatible with 1/2in-13 coarse thread bolts and threaded rods, ensuring proper thread engagement. The nylon insert creates friction during tightening, reducing the risk of back-off even under stress. Constructed from alloy steel, they provide strength and corrosion resistance, making them dependable for various hardware installations. The zinc coating helps prevent rust, extending the lifespan of the fasteners in general-purpose indoor and light exterior use. Packaged conveniently for multiple projects, Hillman lock nuts deliver consistent quality and performance, trusted by professionals and homeowners alike.
In India, these lock nuts are suitable for machinery repairs, automotive work, and structural assemblies. They arrive in 11-13 days via ExpressBox, with all duties and GST included, ensuring hassle-free import and use. Perfect for those seeking reliable, vibration-resistant fasteners with USA-origin quality at competitive prices.
Engineered for Vibration Resistance
Hillman lock nuts feature a nylon insert that grips bolt threads tightly, reducing loosening risks in vibrating machinery or construction setups. Made from alloy steel with zinc coating, they combine strength and corrosion resistance, ensuring dependable performance over time. Trusted for consistent quality, Hillman fasteners are ideal for demanding mechanical and structural applications in India.
Suitable for Construction & Automotive Use
Designed for 1/2in-13 coarse thread bolts and rods, these lock nuts are perfect for automotive repairs, machinery assembly, and structural projects. They arrive from USA, with all duties included, in 11-13 days. Skip local low-quality alternatives for reliable, vibration-resistant fastening solutions.
Typical situations where Hillman Coarse Thread Hex Lock Nuts 1/2in-13 Zinc Pack of 50 | Vibration-Resistant Fasteners helps — illustrative scenarios, not customer reviews.
Ravi from Delhi, 35, working on motorcycle repairs, faced nuts loosening due to vibration.
Hillman lock nuts with nylon insert provided a secure fit, lasting through daily rides, saving ₹ on replacements, arrived in 11-13 days.
| Material | Alloy Steel |
| Finish | Zinc coating |
| Nylon Insert | Yes |
| Suitable for | Construction, automotive, machinery |
| Thread engagement | Proper with 1/2in-13 bolts |
| Reapplication | Not required after installation |
| Shelf life | Unopened, indefinite |
| Cost per use | ₹84.20 per piece |
| Feature | Hillman Coarse Thread | Others |
|---|---|---|
| Material & Finish | Alloy Steel with Zinc coating for durability and corrosion resistance | Typically steel with light or no coating, less resistant to rust |
| Thread Compatibility | 1/2in-13 coarse thread, standard for construction and automotive use | Varies, often non-standard sizes or fine threads |
| Vibration Resistance | Nylon insert grips threads tightly, prevents loosening | Basic nuts without nylon insert, prone to loosening |
| Price & Pack Size | ₹4,210 for 50 pieces, competitive for quality | ₹200-₹300 for a smaller pack of similar quality |
| SKU | zpy6671 |
| GTIN | 00008236072914 |
| Brand | Hillman |
| Material | Alloy Steel |
| Finish | Zinc |
| Size | 1/2"-13 |
| Thread Type | Coarse |
About Hillman
Hillman has been a trusted name in fasteners for over a century, known for quality and reliability in hardware solutions worldwide.
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This item:
Hillman Coarse Thread Hex Lock Nuts 1/2in-13 Zinc Pack of 50 | Vibration-Resistant Fasteners
4,210

This item
Hillman Coarse Thread Hex Lock Nuts 1/2in-13 Zinc Pack of 50 | Vibration-Resistant Fasteners
4,210
Total price:
9,780
You save 3,980 (29%) Extra3 items selected
3 items
9,780You save 3,980 (29%) Extra
| Attributes | Current ![]() | ![]() | ![]() | ![]() | |||
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 4,210 5,910 | 1,490 2,000 | 4,080 5,850 | 2,760 3,710 | 2,820 3,970 | 3,910 6,080 | 14,220 22,810 |
| Brand Name | Hillman | binifiMux | Hillman | Hillman | binifiMux | FRIMOONY | CALT |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
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