--- title: "Black Oxide Carbon Steel Flat Hex Socket Head Machine Screws, Thin Flat Head" description: "Black Oxide Carbon Steel Flat Hex Socket Head Machine Screws, Thin Flat Head — Socket Head Cap & Allen Screws. MOQ 100 pieces, US$0.012 – 2.40." url: https://engineeringhardware.com/product/black-oxide-carbon-steel-flat-hex-socket-head-machine-screws-thin-flat-head/ source: Engineering Hardware & Fasteners --- # Black Oxide Carbon Steel Flat Hex Socket Head Machine Screws, Thin Flat Head [![Black Oxide Carbon Steel Flat Hex Socket Head Machine Screws, Thin Flat Head](https://img.engineeringhardware.com/Black-Oxide-Carbon-Steel-Flat-Hex-Socket-Head-Machine-Screws-Thin-Flat-Head.webp)](https://img.engineeringhardware.com/Black-Oxide-Carbon-Steel-Flat-Hex-Socket-Head-Machine-Screws-Thin-Flat-Head.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Screws › Socket Head Cap & Allen Screws](https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-screws/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/black-oxide-carbon-steel-flat-hex-socket-head-machine-screws-thin-flat-head.md) Model no. **M3/M4/M5/M6/M8/M10** US$0.012 – 2.40 / piece MOQ 100 pieces · Final price confirmed in your quote - **Material:** Carbon Steel - **Standard:** DIN, GB, JIS - **Grade:** a - **Package Size:** 10.00cm * 10.00cm * 10.00cm Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Black%20Oxide%20Carbon%20Steel%20Flat%20Hex%20Socket%20Head%20Machine%20Screws%2C%20Thin%20Flat%20Head%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fblack-oxide-carbon-steel-flat-hex-socket-head-machine-screws-thin-flat-head%2F) Specifications are as listed for this product. Engineering Hardware & Fasteners confirms ratings, mating parts, compatibility, packing and lead time with you before you order. ## Specifications | Customization | Available | | --- | --- | | Material | Carbon Steel | | Type | Flat Head | | Model NO. | M3/M4/M5/M6/M8/M10 | | Standard | DIN, GB, JIS | | Grade | a | | Transport Package | Cartons&Pallets or According to Customer's Require | | Specification | M3/M4/M5/M6/M8/M10 | | Origin | Guangdong | | Package Size | 10.00cm * 10.00cm * 10.00cm | | Package Gross Weight | 2.000kg | | Important Notice | Shipping cost auto-calculated by the system is for reference only. Please kindly contact us to confirm exact freight and specifications prior to payment. Orders placed without prior communication shall not be honored. | | Category | [Socket Head Cap & Allen Screws](https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-screws/) | ## Technical parameters | Material | Main Features | Typical Applications | | --- | --- | --- | | 304 Stainless Steel | Anti-corrosion, rust-proof | Electronic equipment, household appliances, general machinery | | 316 Stainless Steel | High corrosion resistance | Marine equipment, chemical industry, outdoor facilities | | Carbon Steel | High strength, cost-effective | Construction, heavy machinery, automotive industry | | Brass | Conductive, anti-rust, decorative | Electrical components, plumbing, decorative hardware | | Aluminum | Lightweight, anti-corrosion | Aviation, new energy vehicles, lightweight equipment | ## Description Black Oxide Carbon Steel Flat Hex Socket Head Machine Screws, Thin Flat Head is part of our socket head cap & allen screws range (Screws). ### Key details - **Type:** Flat Head - **Standard:** DIN, GB, JIS - **Material:** Carbon Steel - **Grade:** a Available configurations include material, standard, grade and package size. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 100 pieces at US$0.012 – 2.40 per piece. Send one inquiry with the part number, quantity and destination, and Engineering Hardware & Fasteners confirms size, thread, material, grade, finish, price, lead time and shipping, checks the goods before dispatch and ships them to you. ## Frequently asked questions ### What is the minimum order quantity (MOQ) for Black Oxide Carbon Steel Flat Hex Socket Head Machine Screws, Thin Flat Head? The listed minimum order is 100 pieces, at US$0.012 – 2.40 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size. ### What are the main specifications of Black Oxide Carbon Steel Flat Hex Socket Head Machine Screws, Thin Flat Head? Type: Flat Head; Standard: DIN, GB, JIS; Material: Carbon Steel; Grade: a. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include material, standard, grade and package size. Size, thread, length, material and grade, surface finish, head marking, packaging and labels can be quoted to your specification or drawing. ### What is the lead time and how is it shipped? Lead time depends on quantity and customization and is confirmed in your quote. Engineering Hardware & Fasteners checks the goods before dispatch and ships by express, air or sea; mixed orders can be consolidated in one shipment. ### Which other socket head cap & allen screws are available? The Socket Head Cap & Allen Screws category lists 2,042 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-screws/](https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-screws/) How we work ## Specified, checked and shipped by Engineering Hardware & Fasteners Engineering Hardware & Fasteners supplies bolts, screws, nuts, washers, anchors, rivets and fastening hardware to equipment makers, contractors, distributors and maintenance teams. Orders go through one controlled process: size, thread, material, grade and finish confirmed, samples approved, dimensions, thread fit and plating checked before packing, then packed for export — standard or made to drawing. - DIN, ISO, ASTM, ANSI, JIS and GB standard parts - Non-standard parts made to your drawing - Dimensions, thread gauges and plating checked before packing - Export cartons and pallets, consolidated mixed orders - Samples available for approval before mass production [![Production floor](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-01-production-floor-1024x683.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-01-production-floor.webp) Production floor [![Inspection bench](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-02-inspection-bench-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-02-inspection-bench.webp) Inspection bench [![Sorting & packing](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-03-sorting-and-packing-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-03-sorting-and-packing.webp) Sorting & packing [![Parts warehouse](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-04-parts-warehouse-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-04-parts-warehouse.webp) Parts warehouse [![Sample review](https://engineeringhardware.com/wp-content/uploads/2026/11/office-02-office-sample-review-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/office-02-office-sample-review.webp) Sample review [![Sales office](https://engineeringhardware.com/wp-content/uploads/2026/11/office-01-daily-sales-office-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/office-01-daily-sales-office.webp) Sales office [More about us →](https://engineeringhardware.com/about/) · [Request a sample or custom quote →](https://engineeringhardware.com/contact/) ## Request a quote for this product ## Related products [All Socket Head Cap & Allen Screws →](https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-screws/) [![DIN912 Knurled Cheese Head Allen Hex Socket A2 SS304 Machine Screw](https://img.engineeringhardware.com/DIN912-Knurled-Cheese-Head-Allen-Hex-Socket-A2-SS304-Machine-Screw.webp)](https://engineeringhardware.com/product/din912-knurled-cheese-head-allen-hex-socket-a2-ss304-machine-screw/) Socket Head Cap & Allen Screws ### [DIN912 Knurled Cheese Head Allen Hex Socket A2 SS304 Machine Screw](https://engineeringhardware.com/product/din912-knurled-cheese-head-allen-hex-socket-a2-ss304-machine-screw/) Cheese Head · DIN, GB, ANSI, BSW, JIS, GOST **US$0.006 – 6.00**MOQ 50,000 pieces [![ISO7380 Round Head Pan Head Socket Cap Head Hex Head Machine Screws Stainless 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pieces [![Custom Screw Hardware Fasteners Hex Socket Head Shoulder Screws Made-to-Order Fasteners Hardware Prototyping](https://img.engineeringhardware.com/Custom-Screw-Hardware-Fasteners-Hex-Socket-Head-Shoulder-Screws-Made-to-Order-Fasteners-Hardware-Prototyping.webp)](https://engineeringhardware.com/product/custom-screw-hardware-fasteners-hex-socket-head-shoulder-screws-made-to-order/) Socket Head Cap & Allen Screws ### [Custom Screw Hardware Fasteners Hex Socket Head Shoulder Screws Made-to-Order Fasteners Hardware Prototyping](https://engineeringhardware.com/product/custom-screw-hardware-fasteners-hex-socket-head-shoulder-screws-made-to-order/) Round Head · DIN, GB, ANSI, BSW, JIS, GOST **US$0.0012**MOQ 1,000 pieces [![Customized Hex Socket Shoulder Screw](https://img.engineeringhardware.com/Customized-Hex-Socket-Shoulder-Screw.webp)](https://engineeringhardware.com/product/customized-hex-socket-shoulder-screw/) Socket Head Cap & Allen Screws ### [Customized Hex Socket Shoulder 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quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Black%20Oxide%20Carbon%20Steel%20Flat%20Hex%20Socket%20Head%20Machine%20Screws%2C%20Thin%20Flat%20Head%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fblack-oxide-carbon-steel-flat-hex-socket-head-machine-screws-thin-flat-head%2F)