
87816 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $18.31 | Condition is Open box, (QTY 20) Midwest Fastener 87816 5/16-18 Grade 8 Hex Flange Lock Nuts Yellow Zinc, FREE SHIPPING | 99.7% |

Introducing the Midwest Fastener 87816 20 5/16-18 hex flange lock nuts in zinc finish. These lock nuts are an essential component for securing bolts and providing a reliable threaded connection.
The 87816 series lock nuts are designed with a hexagonal shape on the exterior to allow for easy application of torque with a wrench or socket. The nuts have a 5/16-inch hexagon contact surface and are compatible with a 18-thread pitch. The number 20 indicates the number of threads per inch (TPI) for this specific size.
These lock nuts are manufactured using zinc finish, which offers several advantages. Zinc is a protective coating that shields the underlying metal from corrosion and weathering. The zinc finish also enhances the overall appearance of the lock nuts, making them a popular choice for various industrial and mechanical applications.
The flange design on these lock nuts means they have an extended length, allowing them to be used in applications where there is a need for extra clearance or engagement. The flange also helps to prevent the lock nut from rotating during the tightening process, ensuring a secure and stable connection.
In summary, the Midwest Fastener 87816 20 5/16-18 hex flange lock nuts in zinc finish are versatile, durable, and reliable fasteners. They offer a hexagonal contact surface for easy application, a zinc finish for corrosion resistance, and a flange design for added clearance and stability. These lock nuts are an excellent choice for industrial, mechanical, and automotive applications where a secure and long-lasting threaded connection is required.
Midwest Fastener 87816 20 5/16-18 hex flange lock nuts in zinc are commonly used in various industries for securing bolts and ensuring a reliable mechanical joint. Here are some potential pros and cons of purchasing these lock nuts.
Pros:1. Zinc Coating: The zinc coating on these lock nuts provides corrosion resistance, which is essential in harsh environments where the nuts may be exposed to water, moisture, or chemicals. Zinc is also an affordable and effective alternative to more expensive coatings like chromium or stainless steel.
2. Hexagonal Shape: The hexagonal shape of these lock nuts allows for easy application using a wrench or socket. The hexagonal shape also helps prevent the nut from turning when the bolt is being tightened, ensuring a secure connection.
3. Flange Design: The flange design of these lock nuts provides additional surface area for the application of torque, making it easier to achieve the required tightening force.
4. Versatility: These lock nuts have a wide range of applications, from automotive and industrial machinery to construction and HVAC systems.
5. Cost-Effective: Compared to other types of lock nuts, Midwest Fastener 87816 20 5/16-18 hex flange lock nuts are relatively affordable and can save users significant costs in the long run.
Cons:1. Limited Size Availability: These lock nuts are only available in a specific size (20 5/16-18), which may not be suitable for all applications.
2. Required Torque: Proper application of these lock nuts requires the use of the appropriate torque wrench to ensure that the nuts are tightened to the correct torque specification, which can be time-consuming and may require additional equipment.
3. Risk of Over-Torquing: Applying excessive torque to these lock nuts can damage the threads and cause the nuts to become difficult to remove in the future.
4. Potential for Stripping: If the nuts are not properly aligned or the wrench is not used evenly, there is a risk of stripping the hexagonal recesses on the nuts, which can make them unusable.
Conclusion:Midwest Fastener 87816 20 5/16-18 hex flange lock nuts in zinc are an excellent choice for applications where corrosion resistance is essential, and the hexagonal shape and flange design provide a secure and reliable mechanical joint. However, users must ensure that they are used correctly, with the appropriate torque wrench, to avoid damaging the nuts or the threads. Additionally, it is important to note that these lock nuts are only available in one size, so users must ensure that they order the correct size for their specific application. Overall, the benefits of these lock nuts outweigh the potential drawbacks, making them a valuable addition to any toolbox or inventory.
Recommendation:If you require lock nuts with the features and benefits of Midwest Fastener 87816 20 5/16-18 hex flange lock nuts in zinc, we recommend ordering these specifically sized nuts in bulk to ensure a reliable supply for your projects or inventory. Properly store the nuts in a dry location to maintain their corrosion resistance and ensure they are easily accessible when needed. Additionally, invest in a high-quality torque wrench to ensure that the nuts are tightened to the correct torque specification, and always double-check that the nuts are properly aligned before tightening to avoid damaging the threads or the nuts themselves.
Details:
specifications yofastener:
- brand: Midwest Fastener
- mpn: 87816
- type: Lock Nuts
- shape: Hex
- number in pack: 20
- material: Zinc
- grade: Grade 8
- finish: Yellow Zinc
- upc: 738287878165
seller yoFastener:
- city: north salt lake, utah
- # reviews: 32114
- rating: 99.3%
shipping yoFastener:
- transit: 4-8 days
- service: usps ground advantage
- class: standard
- type: fixed
- carrier: usps
returns yoFastener:
- policy: returns accepted
- paid by: buyer
- time: 30 days
- method: money back
offer yoFastener:
- started: april 16, 2025
- availability: in stock
- in stock #: 1
- options: ship-to-home
- sold #: 17
- price: $18.31
- item condition: Open box
payments yoFastener:
- credit card: discover
- wallet: apple-pay
- other
general yofastener:
- category: Home & Garden > Building Hardware > Nails, Screws > Fasteners
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