--- 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: "HK$235" currency: HKD in_stock: true url: https://www.desertcart.hk/products/627661756-400pcs-1-8-40-to-5-16-18-internal-hex store_origin: HK region: Hong Kong --- # 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:** HK$235 **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?** HK$235 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/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 is a shop dedicated to providing consumers with convenient and worthwhile products. We insist on using high-quality materials to make each product meet the quality standards and win the trust of consumers with honest, reliable and good service. ## 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 | #15,592 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #18 in Set Screws | | Brand | Seamaka | | Color | Black | | Customer Reviews | 4.6 4.6 out of 5 stars (134) 4.6 out of 5 stars | | Fastener Type | Machine Screw | | Finish Types | Galvanized | | Item Shape | Hexagonal | | Manufacturer | Seamaka | | 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 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. ## 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 --- ## 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.hk/products/627661756-400pcs-1-8-40-to-5-16-18-internal-hex](https://www.desertcart.hk/products/627661756-400pcs-1-8-40-to-5-16-18-internal-hex) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-11-10*