# HEXPHANT M3 x 20 mm Socket Head Cap Screws, 50-Pack

HEXPHANT M3 socket head cap screws are listed as 20 mm long and fully threaded, with a black oxide finish and an internal hex drive. The listing claims stainless steel construction and says a hex spanner is included, making this pack a fit to consider for metric fastening jobs that use this size.

- [Original product page](https://best-deals.pro/product/hexphant-m3-x-20mm-socket-head-cap-screws)
- [View offer](https://best-deals.pro/visit/hexphant-m3-x-20mm-socket-head-cap-screws)
- Market: US
- Language: en-US
- Currency: USD
- Brand: HEXPHANT
- Category: Tools & Garden > Hardware & Building Materials
- Price: 3.69 USD
- Previous price: 7.39 USD
- Discount: 50%
- Price checked: 2026-11-12T11:11:40.038Z
- Rating: 4.6 / 5
- Reviews: 68

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- M3 x 20 size with fully threaded machine-screw threads, according to the listing.
- Internal hex socket drive and socket cap head style.
- The title and feature text identify black oxide 304 stainless steel, while the details separately list only stainless steel.

## Pros

- 50 screws in one pack suit jobs needing several matching fasteners.
- Internal hex drive provides a tool-engagement style for tightening with a compatible hex key.
- Fully threaded construction is suitable where threads are needed along the screw shank.

## Specifications

### Identity
- Brand: HEXPHANT
- Fastener type: Socket Screws
- Head style: Socket
- Head type: Cap
### Dimensions and installation
- Fastener size: M3 x 20
- Thread size: M3
- Item diameter: 3 millimeters
- Dimensions listed: 2 x 1 x 0.3 inches
- Thread coverage: Fully Threaded
- Thread type: Metric
- Thread direction: Right Hand
- Drive system: Internal Hex
- Point style: Flat Point
### Materials and finish
- Material listed: Stainless Steel
- Exterior finish: Black Oxide
### Pack details
- Number of pieces: 50
- Number of packs: 1

## Before you buy

- The listing is inconsistent about material specificity: its title and feature text claim black oxide 304 stainless steel \(18-8\), while the details only specify stainless steel. The stated 2 x 1 x 0.3 inches are also listed as item dimensions, not screw dimensions. Confirm the material grade and actual screw dimensions against your application.

## A good fit for

- Buyers seeking M3 x 20 fully threaded socket head cap screws for metric assembly or repair.
- Projects where an internal hex drive and black finish are desired.

## Less suited to

- Buyers who need a confirmed material grade or dimensions beyond the listed M3 x 20 size without verifying them first.
- Jobs requiring a different thread size, screw length or head style.

## Customer feedback

Aggregate ratings are mostly in the five-star category, with a smaller spread across lower ratings, including some one-star ratings. This indicates generally favorable ratings alongside some dissatisfaction, but without review text the reasons are unknown. The ratings do not verify the listed material grade, dimensions or included tool.

## Frequently asked questions

### What size are these screws?
The listing gives the fastener size as M3 x 20 and the thread size as M3. It also lists overall item dimensions as 2 x 1 x 0.3 inches, which are not presented as screw dimensions.
### Are the screws fully threaded?
Yes. The listing specifies Fully Threaded.
### What material are they made from?
The title and feature text claim black oxide 304 stainless steel \(18-8\), but the technical details say only stainless steel. Confirm the grade if it matters to your project.
### Is a hex spanner included?
The title and feature text claim a hex spanner is included, but no explicit box inventory is supplied. Check the selected listing's package details.

## Alternative options

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## Add-ons

- [M3 x 16mm\(50 Pack\) Hex Socket Head Cap Screws Bolts, Black Oxide 304 Stainless Steel 18-8, Hex Drive, Bright Finish Fully Machine Thread](https://best-deals.pro/visit/hexphant-m3-x-20mm-socket-head-cap-screws)
- [100pcs M3 x 12mm 12.9 Grade Alloy Steel Hex Socket Head Cap Screws Bolts \| Black Oxide Finish, Full Thread ,Allen Socket Drive](https://best-deals.pro/visit/hexphant-m3-x-20mm-socket-head-cap-screws)

## Images

![HEXPHANT M3 x 20 mm Socket Head Cap Screws, 50-Pack — 1](https://best-deals.pro/i/NZW78_t7wbnO1dsGGFqauW8SQeILnHZc9pvLPyFBMptcSLapbx41lJvCwVNR1FrBR3Ivz5WIx_C6GR_7-1CZEI4H8_FH4Zt8jEDqNn28udDj48yJBXE8.jpg)

![HEXPHANT M3 x 20 mm Socket Head Cap Screws, 50-Pack — 2](https://best-deals.pro/i/mCNOiRB3-_Og2dayopGl7htlnDcjbiePEktoqfaaDopOvCzcQk6MIx7nq4m4Bxc7qqnYYmygNI8w7cOdt3JQ6g7WWEmr4DGfSIUjrMrIbeQZzfWp1o_V.jpg)

![HEXPHANT M3 x 20 mm Socket Head Cap Screws, 50-Pack — 3](https://best-deals.pro/i/LT3xDQTn_heQzL8pv8axH7HAJmjk-L2JBrtS8FYxd4Yd4230Ar6wQxmfVrWQ6agpz6Y9VS1PNmmcQxBtZUnBlJZOVLPBNVQ0ovCldHvPfs7SRH4z0hfd.jpg)

![HEXPHANT M3 x 20 mm Socket Head Cap Screws, 50-Pack — 4](https://best-deals.pro/i/jVxvss6rNuqeLhAWf4KdNNM4JliTLbI_Y0tDce4ecunkU2NweK86s-5TiVSRTOjAxsnnaWItT8y5KIZZa25N8wFIzCJyObUJYKiGrbBN9naepWAWFC7B.jpg)

![HEXPHANT M3 x 20 mm Socket Head Cap Screws, 50-Pack — 5](https://best-deals.pro/i/drf2zwcTNKFh6w5SxbNlZeOIHMnXMxjZwPCrEXvRfSyTyne8Dw9MQIQlwoTJWKvGL__jTVh3BCzln5DAY5_uozwE2fv-Sf0vp66WfibMEffA_xgKaJKJ.jpg)

![HEXPHANT M3 x 20 mm Socket Head Cap Screws, 50-Pack — 6](https://best-deals.pro/i/bZj2CVLsx_GGuYtcRDVOXHsevVgOpQATfgGeho9VZpCzFcRbsvBV3w9pjiIY5AxCaJjQzroYyupXtP1l8dtQe42GH-frY_WihR9BI-01THuYJrbwWah2.jpg)

![HEXPHANT M3 x 20 mm Socket Head Cap Screws, 50-Pack — 7](https://best-deals.pro/i/vefT3jTIsUj30W917fjGTOozJwqyyZqMY4zUy9rRivjU6CfFloLN2s_6sxHlZCAp_okif_LCm9ZQY1lY6hLC7MWTc412tB7lnwWmVD1iFhnuny5jp4lu.jpg)