---
product_id: 154158108
title: "4-40 x 1-1/4\" Button Head Socket Cap Screw, Allen Socket Drive, Black Oxide, Alloy Steel, Full Thread - Quantity 50 - by Fastener Depot, LLC"
brand: "fastener depot"
price: "£12.90"
currency: GBP
in_stock: true
category: "Hi"
url: https://www.desertcart.co.uk/products/154158108-4-40-x-1-1-4-button-head-socket-cap
store_origin: GB
region: United Kingdom
---

# 4-40 x 1-1/4" Button Head Socket Cap Screw, Allen Socket Drive, Black Oxide, Alloy Steel, Full Thread - Quantity 50 - by Fastener Depot, LLC

**Brand:** fastener depot
**Price:** £12.90
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** 4-40 x 1-1/4" Button Head Socket Cap Screw, Allen Socket Drive, Black Oxide, Alloy Steel, Full Thread - Quantity 50 - by Fastener Depot, LLC by fastener depot
- **How much does it cost?** £12.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/154158108-4-40-x-1-1-4-button-head-socket-cap)

## Best For

- fastener depot enthusiasts

## Why This Product

- Trusted fastener depot brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Socket cap screws are commonly used in machine parts, die fixturing, and clamping. The socket head enables driving where there is not sufficient space for wrenches or sockets. Button socket cap screws offer a wider bearing surface and high tensile strength but are still low profile like other socket cap screws. Button Head Socket Cap Screws are designed for light duty applications such as securing guards, covers, and ornamental fixtures. Button Heads present a pleasing appearance to an assembly.

## Features

- Thread Diameter 0.112"
- Head Diameter 0.213"
- Head Height 0.059"
- Allen Hex Drive Size 1/16"
- Coarse Thread
- ›See more product details

## Images

![4-40 x 1-1/4" Button Head Socket Cap Screw, Allen Socket Drive, Black Oxide, Alloy Steel, Full Thread - Quantity 50 - by Fastener Depot, LLC - Image 1](https://images-na.ssl-images-amazon.com/images/I/21UOzTMbueL.jpg)
![4-40 x 1-1/4" Button Head Socket Cap Screw, Allen Socket Drive, Black Oxide, Alloy Steel, Full Thread - Quantity 50 - by Fastener Depot, LLC - Image 2](https://images-na.ssl-images-amazon.com/images/I/213kR-vD3-L.jpg)
![4-40 x 1-1/4" Button Head Socket Cap Screw, Allen Socket Drive, Black Oxide, Alloy Steel, Full Thread - Quantity 50 - by Fastener Depot, LLC - Image 3](https://images-na.ssl-images-amazon.com/images/I/21Pg1Yjb1cL.jpg)
![4-40 x 1-1/4" Button Head Socket Cap Screw, Allen Socket Drive, Black Oxide, Alloy Steel, Full Thread - Quantity 50 - by Fastener Depot, LLC - Image 4](https://images-na.ssl-images-amazon.com/images/I/21X2RplxTEL.jpg)
![4-40 x 1-1/4" Button Head Socket Cap Screw, Allen Socket Drive, Black Oxide, Alloy Steel, Full Thread - Quantity 50 - by Fastener Depot, LLC - Image 5](https://images-na.ssl-images-amazon.com/images/I/21XRBZ%2B5J9L.jpg)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.uk/products/154158108-4-40-x-1-1-4-button-head-socket-cap](https://www.desertcart.co.uk/products/154158108-4-40-x-1-1-4-button-head-socket-cap)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-05*