Best Plastic Socket Cap Screws in 2026
Daisy
Last Updated: Feb 7, 2026
Daisy
Last Updated: Feb 7, 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 |
|---|---|---|---|---|
| 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 3 mm
Head Diameter 5.5 mm
Head Height 3 mm
Allen Hex Drive Size 2.5 mm
A2-70 stainless, which is a grade 304 stainless steel with a 700 N/mm2 tensile strength. The -70 represents the tensile strength divided by 10. Type 304 Stainless Steel is an austenitic steel possessing a minimum of 18% chromium and 8% nickel, combined with a maximum of 0.08% carbon. The 18% minimum chromium provides excellent corrosion and oxidation resistance.
| 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 | ❌ | ❌ | ❌ |
Flat Head, Socket Drive, Stainless Steel
Flat head is cone shaped for use in countersunk holes and has a flat top that fits flush with the mated surface
Internal hex drive has a hexagonal slot that turns using an Allen key driver
18-8 Stainless steel provides corrosion resistance
Drive Size 5/32" Hex
| 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.
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Fastenere | 6 |
We've carried out a comprehensive analysis of 55 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 $15.65, with top brands including and
Our team of expert editors reviewed these high-quality items and handpicked the top 6 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.
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