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Item #:
99981184
60 Pieces 5/16"-18 Nylon Insert Hex Lock Nuts, 304 Stainless Steel
85% of respondents would recommend this to a friend
Item #:
99981184
XCD 44
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
QTY:
Order now and get it around Friday, October 09
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Made of stainless steel 304, which have superior rust resistance and excellent oxidation resistance, can ensure long time using.
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What Stands Out
Durable Material
Made from 304 stainless steel, these lock nuts resist corrosion and rust, ensuring longevity and reliability in various environments, outperforming standard options.
Secure Locking
The nylon insert design prevents loosening under vibration, providing enhanced security and stability for critical applications, surpassing conventional nuts in holding strength.
Variety Pack
With 60 pieces in a convenient pack, this product offers a plentiful supply for multiple projects, providing excellent value and convenience for DIY enthusiasts and professionals alike.
Product Details
| Material | Stainless Steel |
| Fastener Type | Lock |
| Exterior Finish | Stainless Steel,Zinc,Nylon |
| Color | Silver |
| Metal Type | Alloy Steel, Stainless Steel |
| Item Weight | 1 lbs (450 grams) |
Who Should Buy?
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DIY Enthusiasts
Perfect for home projects requiring secure fastening, ensuring durability and resistance to corrosion.
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Marine Applications
Excellent choice for boat repairs due to stainless steel’s resistance to rust, ensuring longevity in wet conditions.
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Automotive Repairs
Ideal for securing parts on vehicles, especially those exposed to vibration, enhancing safety and security.
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Heavy Machinery
Not suitable for critical applications where high loads or extreme conditions exist, risking potential failures.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What are nylon insert hex lock nuts used for?
Answer: Nylon insert hex lock nuts are primarily used to secure fasteners in various applications, providing extra resistance against loosening due to vibrations. The nylon insert helps grip the threads of the bolt once tightened, ensuring that the nut remains in place under challenging conditions. This makes them ideal for automotive, machinery, and assembly projects where reliability is essential. -
Question:
What are the benefits of using 304 stainless steel for lock nuts?
Answer: 304 stainless steel is known for its excellent corrosion resistance and durability, making it a preferred choice for lock nuts in both indoor and outdoor environments. Its robust properties ensure longevity even in harsh conditions, such as moisture or exposure to chemicals. Using 304 stainless steel nuts significantly enhances the lifespan of your assemblies, especially in marine or industrial applications. -
Question:
How do I choose the right size hex lock nut for my project?
Answer: To choose the right size hex lock nut, you must match it with the diameter and thread pitch of the bolt it will secure. For example, the 5/16"-18 measurement indicates a diameter of 5/16 inches and 18 threads per inch. Always verify the specifications of your fastening components to ensure compatibility, which will lead to a stronger and more secure joint. -
Question:
Are nylon insert hex lock nuts reusable?
Answer: Nylon insert hex lock nuts can be reused, but it is important to inspect the nylon insert for wear or damage. If the nylon is compromised, it may not produce the same locking effect upon reuse. In applications where the joint needs to be frequently disassembled, consider using new lock nuts for optimal performance when reassembling. -
Question:
Can I use 304 stainless steel hex lock nuts in high-temperature applications?
Answer: 304 stainless steel hex lock nuts are suitable for moderate temperature applications but can become less effective in extreme high-temperature environments. For applications exposing nuts to high heat, consider using specialized materials, such as Inconel or 316 stainless steel, which can withstand greater thermal stresses without losing their integrity. -
Question:
What tools do I need to install hex lock nuts?
Answer: To install hex lock nuts, you will need a socket wrench or combination wrench that fits the nut size. Additionally, having a torque wrench can help achieve the desired clamping force while preventing over-torquing, which can damage the bolt or nut. This combination of tools will ensure proper installation and secure fastening. -
Question:
Can nylon insert hex lock nuts be used outdoors?
Answer: Yes, nylon insert hex lock nuts made from 304 stainless steel are suitable for outdoor use due to their corrosion resistance. They are ideal for applications like outdoor furniture, fencing, and even marine settings where exposure to elements can lead to rust. Their performance in outdoor environments ensures reliability and longevity throughout various weather conditions. -
Question:
What is the difference between lock nuts and regular nuts?
Answer: The primary difference between lock nuts and regular nuts is the locking feature designed to prevent loosening. Lock nuts incorporate mechanisms (like nylon inserts or serrations) that ensure they stay fastened despite vibrations or movement. Regular nuts do not have these features, making them more prone to loosening and requiring additional measures to secure them. -
Question:
What are common applications for these nuts?
Answer: Common applications for 5/16"-18 nylon insert hex lock nuts include automotive assemblies, construction projects, machinery maintenance, and various DIY tasks. Their ability to maintain tightness under vibrational loads makes them perfect for securing components in machinery, vehicles, and structural frameworks where stability and safety are crucial. -
Question:
Where can I buy 60 Pieces 5/16"-18 Nylon Insert Hex Lock Nuts, 304 Stainless Steel in Saint Kitts and Nevis?
Answer: You can purchase 60 Pieces of 5/16"-18 Nylon Insert Hex Lock Nuts, 304 Stainless Steel from Ubuy, which offers a wide selection of hardware products. Ubuy is known for its reliable service and convenient online shopping experience, making it easy for you to find the exact fasteners you need right from your home.
Powlankou Locknuts Editorial Review
The 60 Pieces 5/16"-18 Nylon Insert Hex Lock Nuts, made from durable stainless steel, are designed to provide reliable fastening solutions in various applications. These nuts feature a strong locking mechanism enhanced by nylon inserts, ensuring they stay securely in place under stress. Users have noted their excellent corrosion resistance, making them ideal for both indoor and outdoor use. The silver finish adds a sleek touch while offering protection against rust and wear. Whether you're a DIY enthusiast or a professional, these lock nuts promise to deliver outstanding performance in every project.
Customer Reviews & Ratings
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Pros
- Durable stainless steel construction
- Corrosion-resistant for outdoor use
- Nylon inserts provide strong locking
- Sleek silver finish for aesthetic appeal
- Ideal for various applications
Cons
- May not be suitable for high-temperature environments
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
AG
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
H
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
O
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
AC
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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XCD 44
Order now and get it around Friday, October 09
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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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Fastest cross-border delivery
Features & Benefits
- 16 pieces of 1/2-13 Nylon Insert Hex Lock Nuts included.
- Crafted from superior 304 Stainless Steel for durability.
- Features excellent rust and oxidation resistance.
- Ideal for professionals and amateurs alike.
- Wide applications across various industries.
- Designed for long-lasting performance in tough environments.
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