---
product_id: 627661756
title: "400Pcs 1/8-40 to 5/16-18 Internal Hex Allen Head Socket Set Screw (Black),12 Size 12.9 Class Alloy Steel Grub Screw Assortment Kit with 5 Hex Wrenches for for Door Handles, Light Fixture"
brand: "seamaka"
price: "€ 27.92"
currency: EUR
in_stock: true
reviews_count: 11
category: "Seamaka"
url: https://www.desertcart.pt/products/627661756-400pcs-1-8-40-to-5-16-18-internal-hex
store_origin: PT
region: Portugal
---

# Organized storage box 400 pcs premium screws 12.9 grade alloy steel 400Pcs 1/8-40 to 5/16-18 Internal Hex Allen Head Socket Set Screw (Black),12 Size 12.9 Class Alloy Steel Grub Screw Assortment Kit with 5 Hex Wrenches for for Door Handles, Light Fixture

**Brand:** seamaka
**Price:** € 27.92
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate your toolkit with the ultimate screw set—because every detail counts!

## Quick Answers

- **What is this?** 400Pcs 1/8-40 to 5/16-18 Internal Hex Allen Head Socket Set Screw (Black),12 Size 12.9 Class Alloy Steel Grub Screw Assortment Kit with 5 Hex Wrenches for for Door Handles, Light Fixture by seamaka
- **How much does it cost?** € 27.92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/627661756-400pcs-1-8-40-to-5-16-18-internal-hex)

## Best For

- seamaka enthusiasts

## Why This Product

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

## Key Features

- • **Precision-Cut Threads:** Smooth, clean threads ensure maximum grip and prevent loosening under heavy use.
- • **Versatile Pro-Use Kit:** Perfect for electricians, plumbers, and DIY pros—ideal for door handles, light fixtures, faucets, and more.
- • **All-In-One Convenience:** Includes 5 hex wrenches and a transparent, labeled storage box for quick access and effortless organization.
- • **Industrial-Grade Strength:** Crafted from 12.9 class alloy steel with black galvanized finish for unbeatable durability and corrosion resistance.
- • **Massive 400-Piece Assortment:** Never run out—12 sizes cover every fastening need from 1/8-40 to 5/16-18.

## Overview

This 400-piece set of internal hex Allen head socket set screws features 12 sizes made from high-strength 12.9 grade alloy steel with a black galvanized finish. Designed for professional-grade durability and corrosion resistance, the kit includes 5 hex wrenches and a transparent, labeled storage box for easy organization. Ideal for precise fastening in electrical, plumbing, and household applications such as door handles and light fixtures.

## Description

Seamaka 400Pcs 1/8-40 to 5/16-18 Internal Hex Allen Head Socket Set Screw (Black),12 Size 12.9 Class Alloy Steel Grub Screw Assortment Kit with 5 Hex Wrenches for for Door Handles, Light Fixture: desertcart.com: Industrial & Scientific

Review: These are great! - Every size I could ever need, it seems. I have several woodworking projects that need this type of screw both in metric and imperial sizes. They look to be of good quality and I have yet to strip the threads on a single one to date. Great source for small parts.
Review: Seamaka 550 Pcs 25 Size Set Screws Metric&SAE Set Screw Assortment Kit - This is a nice kit, I've used the M6 and 1/4 x 20 set screws already and they work fine. Comes with applicable allen wrenches. All in a little clear plastic case. Only problem was the tiny latch on the plastic case comes off frequently. I'll slap a piece of tape on it...don't want to spill 550 set screws. Price and quality are very good for this set.

## Features

- Material: These flat head screws are made of durable grade 12.9 alloy steel and have black galvanized technology. Good corrosion resistance, high hardness and long service life.
- Product specifications: We provide 440 SAE hexagon flat head screws in 12 sizes, including 1/8-40*1/8, 1/8-40*5/32, 1/8-40*1/4, 1/8-40*5 /16 and 5/32-32,and five British hex wrenches.
- Screw thread: All threads have clean cutting edges, clear threads, smooth surfaces and no sharp edges. Threads will increase the fixing force of screws and prevent mechanical parts from loosening to provide stability.
- Widely used: SAE set screws are widely used in the maintenance application of various professional electricians and plumbers and the assembly of fixed parts, such as the maintenance of electronic products and household appliances: the installation of door handles, faucets, product design, fixed pipes and so on.
- Packaging: SAE fixing screws are all put into a transparent storage box for easy storage and use. The box is labeled with detailed stickers, and the corresponding product size and quantity are marked on the stickers for easy searching. And there is a matching Allen wrench, which is convenient and practical, saving time and effort.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CYPBW9B6 |
| Best Sellers Rank | #30,128 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #40 in Set Screws |
| Brand | Seamaka |
| Color | Black |
| Customer Reviews | 4.6 out of 5 stars 130 Reviews |
| Fastener Type | Machine Screw |
| Finish Types | Galvanized |
| Head Style | Allen |
| Item Shape | Hexagonal |
| Manufacturer | Seamaka |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Number Of Items | 400 |
| Number of Packs | 1 |
| Number of Pieces | 400 |
| Part Number | CAO-Q-071-kit |
| Screw Head Style | Allen |
| Set Name | 400Pcs SAE Set Screws |
| Size | SAE |
| Size Name | SAE |
| Thread Size | 5/16"-18 |
| Unit Count | 400 Count |

## Product Details

- **Brand:** Seamaka
- **Color:** Black
- **Fastener Type:** Machine Screw
- **Material:** Alloy Steel
- **Size:** SAE

## Images

![400Pcs 1/8-40 to 5/16-18 Internal Hex Allen Head Socket Set Screw (Black),12 Size 12.9 Class Alloy Steel Grub Screw Assortment Kit with 5 Hex Wrenches for for Door Handles, Light Fixture - Image 1](https://m.media-amazon.com/images/I/818CBPrhH8L.jpg)
![400Pcs 1/8-40 to 5/16-18 Internal Hex Allen Head Socket Set Screw (Black),12 Size 12.9 Class Alloy Steel Grub Screw Assortment Kit with 5 Hex Wrenches for for Door Handles, Light Fixture - Image 2](https://m.media-amazon.com/images/I/612R59v0cYL.jpg)
![400Pcs 1/8-40 to 5/16-18 Internal Hex Allen Head Socket Set Screw (Black),12 Size 12.9 Class Alloy Steel Grub Screw Assortment Kit with 5 Hex Wrenches for for Door Handles, Light Fixture - Image 3](https://m.media-amazon.com/images/I/61DtxN-CrBL.jpg)
![400Pcs 1/8-40 to 5/16-18 Internal Hex Allen Head Socket Set Screw (Black),12 Size 12.9 Class Alloy Steel Grub Screw Assortment Kit with 5 Hex Wrenches for for Door Handles, Light Fixture - Image 4](https://m.media-amazon.com/images/I/61Ip0VKK1+L.jpg)
![400Pcs 1/8-40 to 5/16-18 Internal Hex Allen Head Socket Set Screw (Black),12 Size 12.9 Class Alloy Steel Grub Screw Assortment Kit with 5 Hex Wrenches for for Door Handles, Light Fixture - Image 5](https://m.media-amazon.com/images/I/71+hPmEB+HL.jpg)

## Available Options

This product comes in different **Number Of Items** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ These are great!
*by D***D on September 7, 2026*

Every size I could ever need, it seems. I have several woodworking projects that need this type of screw both in metric and imperial sizes. They look to be of good quality and I have yet to strip the threads on a single one to date. Great source for small parts.

### ⭐⭐⭐⭐⭐ Seamaka 550 Pcs 25 Size Set Screws Metric&SAE Set Screw Assortment Kit
*by M***N on March 25, 2026*

This is a nice kit, I've used the M6 and 1/4 x 20 set screws already and they work fine. Comes with applicable allen wrenches. All in a little clear plastic case. Only problem was the tiny latch on the plastic case comes off frequently. I'll slap a piece of tape on it...don't want to spill 550 set screws. Price and quality are very good for this set.

### ⭐⭐⭐⭐ Many sizes, but a little soft
*by U***R on February 20, 2025*

I bought these set screws because I needed one for a front door handle and did not know the correct size. It was an old door lock, and I knew it would be SAE and not metric. So, I was confident I would find the size I needed. The only negative is that the set screws are just a little soft, so be careful not to over tighten them or the tool will strip the head of the set screw. This is why I did not give it five stars. I did find the screw I needed, and it fit perfect.

## Frequently Bought Together

- Seamaka 400Pcs 1/8-40 to 5/16-18 Internal Hex Allen Head Socket Set Screw (Black),12 Size 12.9 Class Alloy Steel Grub Screw Assortment Kit with 5 Hex Wrenches for for Door Handles, Light Fixture
- 500pcs Set Screws, Grub Screw Set, Set Screws Assortment Kit M3 M4 M5 M6 M8 for Home Repair, Repair Furniture, Electronic Product, Install Door Lock, DIY, Fixtures, 12 Sizes
- 240 Pcs Set Screws Assortment Kit (M3, M4, M5, M6, M8) with Allen Keys–Durable Metric Cup Point 304 Stainless Steel for Bathroom Fixtures, Light Fixture Screws,Door Knobs, Faucets, Plumbing, and More

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-10-06*