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Item #:
178241419
1/2"-13 Nylon Insert Lock Nuts, Steel, Black Phosphate, 1000 Pack
Item #:
178241419
XCD 1343
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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In stock
Imported from USA store
QTY:
Order now and get it around Saturday, October 03
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Designed to create a tight, frictional fit that restricts movement of screws even under vibration.
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What Stands Out
Durable Material
Made from medium carbon steel, these locknuts offer exceptional strength and durability, ensuring reliable performance in various applications and withstanding high-stress environments.
Secure Locking
The nylon insert provides a superior locking mechanism, minimizing the risk of loosening due to vibration, ensuring your assemblies remain intact in dynamic conditions.
Bulk Quantity
Sold in packs of 1000, these locknuts provide significant value for large projects, reducing the frequency of reorder and ensuring you have enough inventory for demanding tasks.
Product Details
| Material | Heat-Treated |
| Fastener Type | Hex |
| Exterior Finish | Black Phosphate,Carbon Steel,Nylon |
| Color | Black Phosphate |
| Metal Type | Carbon Steel |
| Item Weight | 22 lbs (9.98 kg) |
Who Should Buy?
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Construction Projects
Ideal for securing structural components in residential and commercial construction, providing reliable locking mechanisms under stress.
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Automotive Repairs
Useful for automotive applications where vibration resistance is needed, ensuring parts remain securely fastened during operation.
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Home Improvement
Perfect for DIY enthusiasts tackling home improvement projects, offering durability and ease of installation for various fittings.
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High-Temperature Applications
Not suitable for environments with extreme heat, which may cause the nylon insert to degrade and lose effectiveness.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is a nylon insert stop nut?
Answer: It's a hex nut with a nylon-filled collar that secures screws in place and prevents loosening. -
Question:
Can these nuts be reused?
Answer: Yes, they can be reused multiple times without losing effectiveness. -
Question:
What applications are they best suited for?
Answer: They are best for applications where vibration may cause fasteners to loosen.
Newport Fasteners Locknuts Editorial Review
1/2"-13 Nylon Insert Lock Nuts, Steel, Black Phosphate, 1000 Pack is a set of durable hex fasteners designed with a self-locking nylon collar that effectively resists vibration loosening, ensuring secure assembly in various applications. Made from heat-treated carbon steel and finished with a black phosphate coating, these lock nuts not only offer strength but also corrosion resistance, making them suitable for both indoor and outdoor use. Users appreciate their reliability, especially in high-vibration environments, providing peace of mind that your fixtures will remain intact. It's crucial to verify the fit and compatibility with your existing hardware to ensure optimal performance.
Customer Reviews & Ratings
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Pros
- Self-locking nylon collar prevents loosening
- Durable heat-treated carbon steel construction
- Corrosion-resistant black phosphate finish
- Suitable for high-vibration applications
- Includes a large quantity of 1000 nuts
Cons
- Size may not fit all standard bolts
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
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Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
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Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
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Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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XCD 1343
Order now and get it around Saturday, October 03
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Features & Benefits
- Features a nylon-filled collar for enhanced stability.
- Provides a secure grip to prevent screw movement.
- Ideal for use with similar machine screws and bolts.
- Reusable more times than traditional two-way reversible nuts.
- Known by various names: Nylock Nuts, Elastic Lock Nuts.
- Perfect for applications where vibration is a concern.
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