Best Black Oxide Hex Nuts in 2026
Daisy
Last Updated: Feb 8, 2026
Daisy
Last Updated: Feb 8, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| WindFly | 9.78 | ✅ | ✅ | ✅ |
- Material: Carbon Steel ; - Weight: 30g;
- Hole diameter: 2mm/ 0.08"; - Pitch: 0.4mm;
- Package: 100 x M2 Nylon nuts; - Color: Black;
- Used for: matching screws & matching bolts.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Fullerkreg | 9.81 | ✅ | ✅ | ✅ |
Type：Nylon Insert Lock Nut
Diameter-Thread Size：#8-32
Grade: 18-8
Finish: Plain
UOM: Pkg of 100
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| VIGRUE-KING OF SCREW | 9.93 | ✅ | ✅ | ✅ |
304 STAINLESS MATERIAL: These Nuts are made from 100% 304 Stainless Steel which is one of the highest forms of strength and corrosion resistant metals, making it last longer than other Nuts on the market today. Even in bad environment like high temperature, cold weather, and high humidity areas. They have superior corrosion,rust resistance and the excellence of oxidation resistance, which can ensure long time using.
Dependable Kit: VIGRUE hex nuts are very strong and are great for both indoor and outdoor use. This stainless is superior to regular steel and provides excellent rust resistance. Non-toxic & pollution-free.
WIDER SIZE RANGE: Hex Nuts includes hex nuts and lock nuts, totally 520Pcs. According with standardized metric system. Total 7 different sizes can meet your different needs.
CONVENIENT BOX: nuts are packed in a durable and sturdy box to efficiently bear the weight of the whole package. In order to avoid the nuts being scattered or lost during use, we specially package for each different type of nuts for your convenience and storage.
WIDE APPLICATIONS: Hex Nuts Assortment Kit Serves a wide range of use and for professionals, amateurs, landlords, repairmen, other DIY . The set is perfect to replace broken and missing nuts. When you are mad for the missing nuts, it is a perfect friend for you. The kit has lots of different sizes, which can meet the maximum of requirement for you.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Fullerkreg | 9.82 | ✅ | ✅ | ✅ |
Metric or Imperial?: Metric
Thread Size: M6 (6mm)
Nut Width AF (F): 9.57mm
Overall Length (T): 8.74mm - 9.10mm
Material: A2 Stainless Steel
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Masaile2020 | 9.87 | ✅ | ✅ | ✅ |
➤[HIGHLY DURABLE]-----These hex acorn nuts are made of nylon with outstanding load bearing and rust/wear-resistant properties. They are perfect to use in any condition, indoor and outdoor, which are made to last. Very tough and lightweight.
➤[A LARGE VARIETY]-----We offer a diverse selection in the assortment kit containing 7 different sizes: ①M3 ②M4 ③M5 ④M6 ⑤M8 ⑥M10 ⑦M12. A large variety for making sure to support all of your projects!
➤[PROVIDE SAFETY]-----The acorn dome nuts are 6-sided making them easy to tighten with a wrench. They are used for covering the threaded fastener like bolts/screws for the scratch-free result, keeping you and your children safe.
➤[WHAT YOU GET]-----All 100pcs acorn nuts we provided are the most-used types. A free handy storage box is included, which allows you to find the desired one immediately. Very convenient.
➤[QUALITY AFTER-SALE SERVICE]-----We are highly confident with our products and your satisfaction is our Top Priority. If you have any questions, please reach out to us. We would reply within 12-hour and solve all the problems to your satisfaction.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Hilitchi | 9.88 | ✅ | ✅ | ✅ |
WITH good bearing prosperity, our nylon acorn nuts has a long service life. Very strong, stiff, and lightweight.
TOTAL 7 sizes. This black acorn nuts assortment kit includes M3, M4, M5, M6, M8, M10, M12.
EACH of our acorn cap nut has a smooth round dome head that protects and secures the threads it covers while improving the appearance. Outer hex-shaped design makes your installation become more convenient.
WE provide the common used acorn cap nuts, all total 100pcs, enough quantity for your spare use.
IF you have any questions, please come to us, we would work out a solution for all your problems.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| nineone | 9.66 | ✅ | ✅ | ✅ |
PREMIUM QUALITY MATERIAL ENSURES LONG TERM SERVICE--100% brand new and high quality
PREMIUM QUALITY MATERIAL ENSURES LONG TERM SERVICE--100% brand new and high quality
WEAR RESISTANCE NYLON MATERIAL--Made of nylon material, these acorn nuts are sturdy and durable
ANTI-SLIP ACORN HEX NUTS--It is not easy to slip when turning screw with wrench, mainly used for rough and simple components
AVOIDS FALLING OFF--Acorn nuts can prevent nuts from getting loose and falling off
IDEAL TOOL FOR HIGH STRENGTH FASTEN--It can be used as high strength fasteners for machinery, furniture, vehicles, etc
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| RAParts Inc. | 9.81 | ❌ | ❌ | ❌ |
One New Aftermarket Replacement Self Locking Nut Size M18 x 1.50mm Din 985 Metric Fine
M18 x 1.5
Nylon Self-Locking Nut
Fine - Grade 5 - Plated
Replaces Part Number(s): 53842, OTK20-0328
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Fullerkreg | 2 |
| Binifimux | 1 |
| Hilitchi | 1 |
| Mardatt | 1 |
| Reliable Aftermarket Parts Our Name Says It All | 1 |
| Vigrue | 1 |
| Wal Front | 1 |
We've carried out a comprehensive analysis of 1,694 reviews on hex nuts, using our selection criteria to identify the best options in the fasteners. Our findings reveal that most customers typically select hex nuts priced around $11.82, with top brands including twcc, bolt dropper, hard-to-find fastener, fullerkreg, hillman, gelisen, small parts, mellewell and vigrue and binifimux
Our team of expert editors reviewed these high-quality items and handpicked the top 8 hex nuts for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the fasteners category. These include winkkipag, jet fitting & supply, amazon.com, moofin, gelisen, mellewell direct and vigrue-king of screw and windfly .
We are dedicated to assisting our users in finding the right nuts Products based on their needs, saving them considerable time when choosing which hex nuts to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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