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Locknuts
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  6. Hillman Coarse Thread…
Hillman

Hillman Coarse Thread Hex Lock Nuts 1/2in-13 Zinc Pack of 50 | Vibration-Resistant Fasteners

Hillman Coarse Thread Hex Lock Nuts 1/2in-13 Zinc Pack of 50 | Vibration-Resistant Fasteners - main product image
All-inclusive price — duties & taxes paid, no customs charges at delivery
₹4,210₹5,910

You save ₹1,700 (29%)

Qty
Hillman Coarse Thread Hex Lock Nuts 1/2in-13 Zinc Pack of 50 | Vibration-Resistant Fasteners — Pack of 50
Pack of 50
₹4,210
₹5,910
In Stock
Hillman Coarse Thread Hex Lock Nuts 1/2in-13 Zinc Pack of 50 | Vibration-Resistant Fasteners — 5/16"-18
5/16"-18
₹2,760
₹3,710
In Stock

Estimated doorstep delivery by 23 Nov - 25 Nov from USA

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Sourced from US retailers
Sourced from US retailers
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Factory-Sealed
All Duties Included
All Duties Included
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GST Invoice Issued
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Reliable Locking at a Competitive Price

About this item

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.

Key Features

  • NYLON INSERT LOCK NUTS RESIST VIBRATION LOOSENING: 1/2 in.-13 nylon insert stop nuts grip bolt threads as the nut is tightened, preventing loosening from vibration, movement, or stress in construction and mechanical assemblies.
  • BUILT-IN NYLON INSERT FOR RELIABLE VIBRATION-RESISTANT LOCKING: Integrated nylon insert creates friction against bolt threads during tightening, keeping the nut firmly in place and reducing back-off risk in demanding fastening applications.
  • COMPATIBLE WITH 1/2 IN.-13 COARSE THREAD BOLTS AND RODS: Engineered for 1/2 in.-13 coarse thread bolts and threaded rods, ensuring proper thread engagement and reliable fastening in construction, mechanical, and equipment assemblies.
  • ZINC-PLATED STEEL FOR CORROSION RESISTANCE: Durable zinc-plated coating provides moderate rust protection for general-purpose fastening and mechanical applications. Dependable performance across a range of hardware installations. 50-piece pack.
  • TRUSTED HILLMAN FASTENING SOLUTIONS: Hillman hardware products are engineered for consistent quality, dependable performance, and reliable fastening across construction, repair, and home improvement project applications.

Why choose this product

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.

How to use

  • Select the correct bolt and nut size — Ensure the bolt is 1/2in-13 coarse thread. Clean threads for best grip. Use washers if needed for added stability.
  • Tighten the lock nut onto the bolt — Hand-tighten first, then use a wrench to snugly tighten until nylon insert grips threads securely. Do not overtighten.
  • Check for secure fit — Ensure the nut does not loosen with vibration. Re-tighten if necessary after initial use.

Example scenarios

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.

1
Scenario 1
Illustrative example
Where it helps

Ravi from Delhi, 35, working on motorcycle repairs, faced nuts loosening due to vibration.

How this product helps

Hillman lock nuts with nylon insert provided a secure fit, lasting through daily rides, saving ₹ on replacements, arrived in 11-13 days.

Specifications & installation

Specifications

MaterialAlloy Steel
FinishZinc coating
Nylon InsertYes

Installation & usage

Suitable forConstruction, automotive, machinery
Thread engagementProper with 1/2in-13 bolts
ReapplicationNot required after installation
Shelf lifeUnopened, indefinite
Cost per use₹84.20 per piece

How we compare

FeatureHillman Coarse ThreadOthers
Material & FinishAlloy Steel with Zinc coating for durability and corrosion resistanceTypically steel with light or no coating, less resistant to rust
Thread Compatibility1/2in-13 coarse thread, standard for construction and automotive useVaries, often non-standard sizes or fine threads
Vibration ResistanceNylon insert grips threads tightly, prevents looseningBasic 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

Product details

SKUzpy6671
GTIN00008236072914
BrandHillman
MaterialAlloy Steel
FinishZinc
Size1/2"-13
Thread TypeCoarse

About Hillman

Hillman has been a trusted name in fasteners for over a century, known for quality and reliability in hardware solutions worldwide.

Compliance & Legal

This is a dietary supplement; not intended to diagnose, treat, cure or prevent any disease.

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FAQ, See What Others Asked

What thread size and standard does this lock nut use?
The listing specifies a 1/2in-13 coarse thread, compatible with standard bolts and threaded rods used in construction and mechanical projects in India.
What material is this lock nut made from?
These lock nuts are made from alloy steel with a zinc coating, providing strength and corrosion resistance suitable for indoor and light outdoor use.
Are these lock nuts suitable for vibration-heavy applications?
Yes, the nylon insert creates friction that resists vibration loosening, making them ideal for machinery, automotive, and structural projects.
How do I ensure proper installation?
Tighten the lock nuts onto 1/2in-13 bolts or rods until snug. The nylon insert will grip threads securely, preventing loosening over time.
Can I use these with washers?
Yes, these lock nuts can be used alongside washers of the same size for added stability in various assemblies.
How long will these arrive in India?
Your order will arrive in 11-13 days via ExpressBox, with all duties and GST included, ensuring quick and hassle-free import.

Frequently bought together

Hillman Coarse Thread Hex Lock Nuts 1/2in-13 Zinc Pack of 50 | Vibration-Resistant Fasteners

This item:

Hillman Coarse Thread Hex Lock Nuts 1/2in-13 Zinc Pack of 50 | Vibration-Resistant Fasteners

₹4,210

Hillman Coarse Thread Hex Lock Nuts 1/2in-13 Zinc Pack of 50 | Vibration-Resistant Fasteners

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%) Extra

3 items selected

3 items

₹9,780

You save ₹3,980 (29%) Extra

Product Comparison

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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 NameHillmanbinifiMuxHillmanHillmanbinifiMuxFRIMOONYCALT
SourceUS RetailUS RetailUS RetailUS RetailUS RetailUS RetailUS Retail
Sold ByCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrow
Imported from USA
₹4,210₹5,910

You Save ₹1,700

Estimated doorstep delivery by 23 Nov - 25 Nov from USA
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Your Order Journey: From Purchase to Doorstep

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Place your order
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Packed & shipped
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Fast transit
Consignment to India Warehouse
Customs cleared
Doorstep delivery
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You Order
Place your order
USA Warehouse dispatch
Packed & shipped
International Air Shipping
Fast transit
Consignment to India Warehouse
Customs cleared
Doorstep delivery
Delivered to you

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vs
₹12,630+ (3× the price)
₹4,210 locked, all-in
Hard to get the original US version in India
Original US version, shipped to your door
Extra pay for Import Duties, GST, and forex fees
One price in INR, no customs charges at delivery
4–12 weeks · No tracking
11-13 days · live tracking
Grey market, no guarantee, no protection, no refund
Sourced from US retailers, India-verified, return available
Lost in transit = ₹0 back
Full protection included