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12x28 12-28 Steel Black Oxide Jam Nut - Knurled Outside Diameter

12x28 12-28 Steel Black Oxide Jam Nut - Knurled Outside Diameter

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What Stands Out

Robust Construction
Made from high-quality steel, this jam nut provides superior strength and durability, ensuring it withstands harsh conditions while maintaining performance in various applications.
Knurled Design
The knurled outside diameter offers enhanced grip for easy installation and removal, making it user-friendly for both professionals and DIY enthusiasts in need of reliable fastening.
Versatile Compatibility
Designed for 1/2x28 applications, this jam nut is ideal for firearms and automotive uses, addressing specific needs of users who require precision and reliability in their projects.

Product Details

Shop the best selection of 12x28 Steel Black Oxide Jam Nut - Knurled Outside Diameter at Ubuy Iraq. Get the lowest prices and fast delivery worldwide!
Item Weight0.2 lbs (90 grams)

Who Should Buy?

Suitable For
  • Gun Enthusiasts

    Ideal for securing muzzle devices on firearms with 1/2x28 threads, ensuring effective performance and safety.

  • DIY Projects

    Perfect for hobbyists or professionals working on mechanical projects requiring durable fastening solutions.

  • Automotive Use

    Useful for automotive applications to provide secure connections in various custom modifications.

Not Suitable For
  • General Household

    Not suitable for typical household hardware applications that require standard nut sizes or softer materials.

  • Non-Threaded Use

    Not appropriate for applications that do not involve threaded fasteners or need a different fastening method.

  • Lightweight Projects

    Not ideal for lightweight tasks where less robust fastening solutions would be sufficient or more appropriate.

Product Description

12x28 12-28 Steel Black Oxide Jam Nut - Knurled Outside Diameter

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the material of the 12x28 Steel Black Oxide Jam Nut?

    Answer: The 12x28 Steel Black Oxide Jam Nut is made from high-quality steel, ensuring strength and durability in various applications. The black oxide finish adds a layer of corrosion resistance, making it suitable for use in environments where moisture or chemicals may be present. This nut is ideal for securing fasteners in automotive, machinery, and construction applications.
  • Question: What are the dimensions of the 12x28 Steel Black Oxide Jam Nut?

    Answer: The dimensions of the 12x28 Steel Black Oxide Jam Nut include a thread size of 12-28 and a knurled outside diameter, which provides enhanced grip and ease of adjustment. The knurled design helps to prevent slippage when manually tightening or loosening the nut, making it particularly useful in applications where tools may not be readily available.
  • Question: Can the 12x28 Steel Black Oxide Jam Nut be used in high-temperature environments?

    Answer: Yes, the 12x28 Steel Black Oxide Jam Nut is designed to withstand moderate to high temperatures, making it suitable for various mechanical applications. The steel construction ensures that it maintains its integrity even under heat stress, which is essential for automotive and industrial uses where temperature fluctuations can occur.
  • Question: What applications are suitable for the 12x28 Steel Black Oxide Jam Nut?

    Answer: The 12x28 Steel Black Oxide Jam Nut is versatile and can be used in numerous applications, including automotive assembly, machinery maintenance, and general construction. Its reliable locking mechanism makes it perfect for securing bolts in high-vibration environments, such as engines and heavy equipment, ensuring long-lasting performance.
  • Question: Is special tooling required to install the 12x28 Steel Black Oxide Jam Nut?

    Answer: No, special tooling is typically not required to install the 12x28 Steel Black Oxide Jam Nut. It can be tightened by hand due to its knurled exterior, providing an excellent grip advantage. However, for optimal security, using standard wrenches will ensure that it is properly secured, especially in high-stress applications.
  • Question: How does the black oxide finish benefit the 12x28 Steel Black Oxide Jam Nut?

    Answer: The black oxide finish on the 12x28 Steel Black Oxide Jam Nut provides several benefits, including enhanced corrosion resistance, improved aesthetic appeal, and reduced friction during installation. This finish helps in preventing oxidation, which is crucial in prolonging the nut's life in various environmental conditions, thereby making it a smart choice for long-term projects.
  • Question: What is the difference between a jam nut and a regular nut?

    Answer: A jam nut, such as the 12x28 Steel Black Oxide Jam Nut, is thinner and typically used in conjunction with a regular nut to improve locking and reduce the chance of loosening under vibration. The use of a jam nut increases the overall stability of the connection, making it particularly beneficial in dynamic environments where movement is a concern.
  • Question: What should I consider when buying a 12x28 Steel Black Oxide Jam Nut?

    Answer: When purchasing a 12x28 Steel Black Oxide Jam Nut, consider the material, finish, and thread compatibility. Ensure the nut's dimensions match your application requirements. Additionally, check for quality certifications or reviews to confirm its performance in high-stress environments, especially if it will be used in critical assembly applications.
  • Question: Can I use a 12x28 Steel Black Oxide Jam Nut in a marine application?

    Answer: While the 12x28 Steel Black Oxide Jam Nut offers some level of corrosion resistance, it's not specifically designed for marine applications where exposure to saltwater is prevalent. In such environments, it's advisable to use nuts made from stainless steel or other materials designed to withstand harsh marine conditions to prevent premature failure.
  • Question: Where can I buy a 12x28 Steel Black Oxide Jam Nut in Iraq?

    Answer: You can buy the 12x28 Steel Black Oxide Jam Nut on Ubuy, a reliable e-commerce platform that offers a variety of industrial and hardware products including jam nuts. Ubuy ensures a comprehensive selection, facilitating your search for essential items like the 12x28 Steel Black Oxide Jam Nut.

XPE Hex Nuts Editorial Review

The 12x28 12-28 Steel Black Oxide Jam Nut with Knurled Outside Diameter is a good quality product that is perfect for hand tightening. However, some customers found it difficult to grasp with a tool due to its round shape. It fits well and has a satisfactory finish. Some customers commented that it was too thick or too narrow for their application. One customer mentioned that the crush washers did not look good and the jam nut was a better alternative. However, it should be noted that it did not work for one customer's muzzle brake.

Customer Reviews & Ratings

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Pros

  • Good quality
  • Perfect fit for some applications
  • Satisfactory finish

Cons

  • Round shape makes it difficult to grasp with tool

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MT
Mohd
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“The product received very good packaging & safe…Thank You”

16 June 2026 · via Trustpilot
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Shawati
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“Accurate delivery timing given”

16 June 2026 · via Trustpilot
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Youcef
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“Not madly expensive like I thought, and much quicker than promised.”

15 June 2026 · via Trustpilot
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Leila
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“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”

6/7/2026 · via Trustpilot
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Kwame
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“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”

12 June 2026 · via Trustpilot
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