Best Plastic Socket Cap Screws in 2026
Daisy
Last Updated: Feb 6, 2026
Daisy
Last Updated: Feb 6, 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 | 9.81 | ✅ | ✅ | ✅ |
Type: Socket Head Cap screws
Grade:Class 12.9
Material:Alloy Steel
Finish:Black Oxide
Specification: ISO 4762|DIN 912
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Fullerkreg | 9.81 | ✅ | ✅ | ✅ |
(m3 cap head screws)Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head.
(m3X 6mm screws)Metric screws are also known as A2 stainless steel screws.
(Long 6mm bolt)Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch. Fine threads are closely spaced to prevent loosening from vibration. They are not compatible with coarse threads.
(Long 6mm screw)Screws that meet ISO 21269 and ISO 4762 (formerly DIN 912) comply with specifications for dimensional standards.
Come wiht a plastic box pack.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Fullerkreg | 9.81 | ✅ | ✅ | ✅ |
Type: Button Head Socket Cap Screws
Grade:Class 10.9
Material:Alloy Steel
Finish:Black Oxide
Specification:ISO 7380
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Fullerkreg | 9.81 | ✅ | ✅ | ✅ |
with the ability to assemble 5+ parts per kit, 10+ parts per kit,100+ parts per kit,build multiple sub-kits within a master kit, and even provide assembly services.
State-of-the-art automated equipment for increased speed and accuracy.
Multiple levels of verification to ensure quality and accuracy.
Product undergoes three levels of quality testing (pre-production, 1st article, pre-shipment).
Each completed kit is weight-verified, and samples from each lot are inspected prior to shipping.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Fullerkreg | 9.81 | ✅ | ✅ | ✅ |
with the ability to assemble 5+ parts per kit, 10+ parts per kit,100+ parts per kit,build multiple sub-kits within a master kit, and even provide assembly services.
State-of-the-art automated equipment for increased speed and accuracy.
Multiple levels of verification to ensure quality and accuracy.
Product undergoes three levels of quality testing (pre-production, 1st article, pre-shipment).
Each completed kit is weight-verified, and samples from each lot are inspected prior to shipping.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Fullerkreg | 9.81 | ✅ | ✅ | ✅ |
Type: Button Head Socket Cap Screws
Grade:Class 10.9
Material:Alloy Steel
Finish:Black Oxide
Specification:ISO 7380
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Fullerkreg | 9.81 | ✅ | ✅ | ✅ |
with the ability to assemble 5+ parts per kit, 10+ parts per kit,100+ parts per kit,build multiple sub-kits within a master kit, and even provide assembly services.
State-of-the-art automated equipment for increased speed and accuracy.
Multiple levels of verification to ensure quality and accuracy.
Product undergoes three levels of quality testing (pre-production, 1st article, pre-shipment).
Each completed kit is weight-verified, and samples from each lot are inspected prior to shipping.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| FASTENER DEPOT, LLC | 9.76 | ❌ | ❌ | ❌ |
Thread Diameter 6 mm
Head Diameter 10.50 mm
Head Height 3.30 mm
Allen Hex Drive Size 4.00 mm
18-8 Stainless Steel provides strength and offers good corrosion resistance in many environments.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| FASTENER DEPOT, LLC | 9.76 | ❌ | ❌ | ❌ |
Thread Diameter 6 mm
Head Diameter 10.50 mm
Head Height 3.30 mm
Allen Hex Drive Size 4.00 mm
18-8 Stainless Steel provides strength and offers good corrosion resistance in many environments.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| FASTENER DEPOT, LLC | 9.77 | ❌ | ❌ | ❌ |
Socket cap machine screws are precision fasteners that are known for their quality and durability. They are designed to meet challenging fastening applications in a variety of industries such as construction, automotive, and product manufacturing. They are also known for their efficient application performance and endurance.
Button is low domed style head with a wide bearing surface that is perfect for use on applications in tight spaces.
Hex socket screw drive has a hexagonal recess and may be driven by a hex key or Allen wrench that allows for high torque wrenching in tight spaces.
The vast majority of stainless steel fasteners are produced with metals from the austenitic family. Their high levels of chromium and nickel provide tough corrosion resistance and the ability to withstand considerable physical strain without fracturing, albeit at a higher cost than the martensitic varieties.
Made of stainless steel grade 18-8 which offers a high level of chemical and corrosion resistance and strength that will out perform and out last all zinc plated fasteners for years with out the need to perform costly and time consuming maintenance.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| FASTENER DEPOT, LLC | 9.76 | ❌ | ❌ | ❌ |
Thread Diameter 5 mm
Head Diameter 9.50 mm
Head Height 2.75 mm
Allen Hex Drive Size 3.00 mm
18-8 Stainless Steel provides strength and offers good corrosion resistance in many environments.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Fullerkreg | 9.81 | ✅ | ✅ | ✅ |
Type: Socket Cap Screw
Grade:Class 12.9
Material:Alloy Steel
Finish:Black Oxide
Specification:ISO 4762
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Fullerkreg | 8 |
| Fastenere | 4 |
We've carried out a comprehensive analysis of 1,080 reviews on socket cap screws, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select socket cap screws priced around $12.20, with top brands including and
Our team of expert editors reviewed these high-quality items and handpicked the top 12 socket cap screws for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .
We are dedicated to assisting our users in finding the right screws Products based on their needs, saving them considerable time when choosing which socket cap screws to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
PickSmartly is dedicated to creating a platform designed to streamline your shopping experience, empowering you to make well-informed purchasing decisions with minimal time and effort. At the heart of our mission is the commitment to earning and maintaining the trust of our users, as we believe this to be fundamental to the services we provide.
When you engage with our websites, services, or tools, we or our approved service providers may utilize cookies to store information. This is done to enhance your user experience by making it more efficient, secure, and tailored to your preferences, as well as for marketing objectives.
We are an Amazon Associate and earn commissions from qualifying purchases. Our participation in the Amazon Services LLC Associates Program, an affiliate advertising initiative, provides us with a means to generate income through links to Amazon.com and its affiliated websites. Please note that Amazon, Amazon Prime, their logos, and the Amazon Prime logo are registered trademarks of Amazon.com, Inc., or its associated companies.
