LTD-FSLM-0001 KUPROWIN Lock Nuts

Review KUPROWIN #4-40 Lock Nuts 304 Stainless Nylon Insert #4- 40 120pcs Silver

Introducing the Kuprowin Ltd FSLM-0001 4-40 Lock Nuts, a versatile and high-quality fastening solution for your projects. These lock nuts are engineered from 304 stainless steel, ensuring superior strength, durability, and resistance to corrosion and rust. With a thread size of 4-40 and a pack quantity of 120 pieces, this product is an excellent choice for various applications where a secure and reliable connection is essential.

The 4-40 thread size is a common standard for fasteners, making these lock nuts suitable for use with a wide range of bolts and screws. The lock nut design provides an additional thread for securing the nut against loosening, ensuring that your fastenings stay tight and secure.

The 304 stainless steel material used in the construction of these lock nuts is known for its excellent mechanical properties. It is highly resistant to corrosion, making it an ideal choice for use in wet, humid, or otherwise harsh environments. Its strength and durability make it an excellent option for applications where the fastenings will be subjected to heavy loads or repeated use.

Each nut in the pack of 120 is meticulously manufactured to ensure consistent quality and precision. The smooth, uniform threads ensure easy installation and proper engagement with the corresponding bolt or screw. The locking feature provides an added layer of security, preventing the nut from coming loose even under heavy load or vibration.

In summary, the Kuprowin Ltd FSLM-0001 4-40 Lock Nuts are a high-quality, versatile, and durable fastening solution. Their 304 stainless steel construction ensures resistance to corrosion and rust, while their lock nut design provides an added layer of security. With a thread size of 4-40 and a pack quantity of 120 pieces, these lock nuts are an excellent choice for a wide range of applications where a secure and reliable connection is essential.

Pros and Cons of Buying Kuprowin LTD-FSLM-0001 4-40 Lock Nuts (304, 40, 120pcs)

a. High-quality material: These lock nuts are made of 304 stainless steel, which is known for its durability and resistance to corrosion. This makes them a suitable choice for various applications, especially in harsh environments.

b. Large quantity: The pack contains 120 pieces, which is an ideal number for most projects. Buying in bulk is often more cost-effective and can save you time and effort.

c. Size and type: The 4-40 size and lock nut type is widely used in the industry, making them versatile and compatible with various applications.

a. Potential for overtightening: Lock nuts require careful torquing to prevent damage to the threads or the component being secured. Over-tightening can lead to stripped threads and potential damage to the part.

b. Manual installation: These lock nuts must be installed manually, which can be time-consuming and labor-intensive for large projects.

The Kuprowin LTD-FSLM-0001 4-40 lock nuts offer several advantages, such as high-quality material, large quantity, and versatility. However, they do require careful installation and can be time-consuming for large projects. Ultimately, the decision to buy these lock nuts depends on the specific requirements of your project and your budget.

If you frequently work on projects that require a large number of lock nuts in the 4-40 size and 304 stainless steel, then buying these Kuprowin LTD-FSLM-0001 lock nuts in bulk would be a wise investment due to their durability and cost-effectiveness. However, if you only need a few lock nuts or prefer a more convenient installation method, you may want to consider alternative options.

Details:

Color silver lock nuts. Kuprowin #4-40 lock nuts,304 stainless nylon insert #4- 40 120pcs, silver. Package 120pcs #4- 40 unlock nuts. #4- 40 lock nuts thread diameter: #4; pitch: teeth per inch coarse ; measurement: imperial us.

304 stainless steel lock nuts the self are made of stainless steel 18-8 / a2-70, with good strength and corrosion resistance.

specifications grindcatch:

• brand: Kuprowin
• mpn: Ltd-fslm-0001
• model: Fslm-0001
• part type: Lock
• color: Silver

offer grindcatch:

• started: april 29, 2026
• options: ship-to-home
• prices: $11.94–$13.90
• item condition: New
• availability: in stock
• in stock #: 2
• sold #: 13

returns grindcatch:

• policy: no returns

shipping grindcatch:

• class: expedited
• transit: 3-8 days
• service: expedited
• type: fixed

seller grindcatch:

• rating: 0.0%
• city: edison, new jersey
• # reviews: 60

payments grindcatch:

• wallet: google-pay
• other
• credit card: diners-club

general grindcatch:

• category: Home & Garden > Workshop Equipment > Power Tools > Grinders