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 |
|---|---|---|---|---|
| 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 |
|---|---|---|---|---|
| ECKJ | 8.04 | ✅ | ✅ | ✅ |
WHAT YOU GET --- You will get 6 different sizes (M3,M4,M5,M6,M8,M10) of hex nuts assorted, 210 packs with portable plastic storage box which size is 4.33*2.83*0.77 inches. Internal thread hexagonal nut fasteners conform to the DIN934 specifications.
MATERIAL--- Made of high-quality 304 stainless steel, it is characterized by high strength and good corrosion resistance in harsh environments such as high temperature, cold weather and high humidity. They have excellent rust resistance and oxidation resistance, which can guarantee long-term use.
WIDE APPLICATION --- Widely used in various precision machinery, classified instruments, electronic products, household appliances, communication products, water faucet, locks, lamps, lamps, toys, etc.. Suitable for professionals, amateurs, landlords, maintenance workers and other DIY projects. This kit is ideal for replacing damaged and lost nuts. When you are crazy about the lost nuts, it is perfect for you. There are many different sizes of the kit to meet your maximum needs.
COMPLETE SIZE --- Sizes include M3 M4 M5 M6 M8 M10 for your multi-purpose use. The thread pitch of these lock nuts respectively are M3-0.5mm，M4-0.7mm，M5-0.8mm，M6-1mm, M8-1.25mm，M10-1.5mm. Amostly covering all of your demands. Hex nuts are six sided making them easy to tighten with a wrench or socket. They are used in conjunction with a bolt, threaded rod or other threaded fastener. Use these hex nuts for general purpose fastening applications so you can easily replace a lost nut.
NOTE --- We've upgraded our packaging recently. Random delivery of new and old packaging. Please keep these away from kids under 7 years old. We guarantee you will have an amazing experience! If you had a problem, please let us know.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Aoesin | 9.95 | ✅ | ✅ | ✅ |
Standard: DIN 6923
Thread Size: M5-0.8; Thread Pitch: 0.8mm; Thread Type: Coarse Thread UNC
Hex Drive: 8mm; Package: 50 pcs
Head Height: 5mm
Material: 304 Stainless Steel 18-8 that you will probably see in your pans and cookery tools. It's used for a wide variety of home and commercial applications. Because of its slightly higher strength and wear resistance than type 316, it's also used for nuts, bolts, screws and other fasteners.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
Hex nut tightens from the side with a wrench, enabling use when there is limited space above the nut
18-8 stainless steel provides good corrosion resistance and strength
Black oxide finish offers mild corrosion resistance and lubricity
Meets DIN 934 specifications
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Jack&home | 9.89 | ✅ | ✅ | ✅ |
High Quality Metric Brass Fastener Hex Nuts Assortment Kit
They are coarse threads;They meet DIN 934,unless otherwise stated
The assortment contains:M2x0.4mm(40PCS)；M2.5x0.45mm(40PCS); M3x0.5mm(30PCS); M4x0.7mm(25PCS); M5x0.8mm((25PCS);M6x1.0mm((20PCS);M8x1.25mm(10PCS);M10x1.5mm(5PCS);total 195 pieces
Made of Brass for corrosion resistance
100% new,Good Quality.Easy to install and durable to use
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| BelMetric | 5.58 | ❌ | ❌ | ❌ |
M14X1.25 (Specialty Extra Fine Thread Pitch 1.25 is hard-to-find) Hexagon Nut
General purpose hexagon nut; high quality fastener with metric threaded hole.
Zinc Plated finish provides corossion resistance in damp environments.
Utilizes 22mm Wrench for Install
Package Qty: 5pcs
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Hex nut tightens from the side with a wrench, enabling use when there is limited space above the nut
Class 10 steel is often used in applications where strength is the primary consideration
Zinc yellow-chromate plating offers good corrosion resistance
Meets DIN 934 specifications
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Hex nut tightens from the side with a wrench, enabling use when there is limited space above the nut
Class 10 steel is often used in applications where strength is the primary consideration
Zinc yellow-chromate plating offers good corrosion resistance
Meets DIN 934 specifications
| 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 |
|---|---|
| Small Parts | 3 |
| Aoesin | 1 |
| Bel-Metric | 1 |
| Eckj | 1 |
| Fullerkreg | 1 |
| Hvazi | 1 |
| Reliable Aftermarket Parts Our Name Says It All | 1 |
We've carried out a comprehensive analysis of 644 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 $11.58, 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 9 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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