--- title: "Countersunk Flat Head Hex Socket Machine Screws with SS304 316" description: "Countersunk Flat Head Hex Socket Machine Screws with SS304 316 — Socket Head Cap & Allen Screws. MOQ 50,000 pieces, US$0.012 – 1.20." url: https://engineeringhardware.com/product/countersunk-flat-head-hex-socket-machine-screws-with-ss304-316/ source: Engineering Hardware & Fasteners --- # Countersunk Flat Head Hex Socket Machine Screws with SS304 316 [![Countersunk Flat Head Hex Socket Machine Screws with SS304 316](https://img.engineeringhardware.com/Countersunk-Flat-Head-Hex-Socket-Machine-Screws-with-SS304-316.webp)](https://img.engineeringhardware.com/Countersunk-Flat-Head-Hex-Socket-Machine-Screws-with-SS304-316.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/countersunk-flat-head-hex-socket-machine-screws-with-ss304-316.md) US$0.012 – 1.20 / piece MOQ 50,000 pieces · Final price confirmed in your quote - **Head Style:** Counter Sunk Bolt - **Standard:** DIN - **Grade:** 10.9 - **Material:** Stainless Steel - **Size:** M4 - **Thread type:** machine thread - **Finish:** Polishing Sandblasting blackening Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Countersunk%20Flat%20Head%20Hex%20Socket%20Machine%20Screws%20with%20SS304%20316%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fcountersunk-flat-head-hex-socket-machine-screws-with-ss304-316%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 | Groove | Hexagon | | --- | --- | | Connection | Common Bolt | | Head Style | Counter Sunk Bolt | | Standard | DIN | | Grade | 10.9 | | Transport Package | Standard Packaging | | Specification | M2.5-M30 | | Origin | Shanghai China | | Production Capacity | 1000000PCS/Week | | Customization | Available | | Material | Stainless Steel | | Type | Countersunk Head | | Size | M4 | | Thread type | machine thread | | Finish | Polishing Sandblasting blackening | | Marked | KS or by your needs | | Strong Packaging | Carton box +pallet packaging to protect your goods in process of shipping. | | Category | [Socket Head Cap & Allen Screws](https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-screws/) | ## Description Countersunk Flat Head Hex Socket Machine Screws with SS304 316 is part of our socket head cap & allen screws range (Screws). ### Key details - **Type:** Countersunk Head - **Standard:** DIN - **Material:** Stainless Steel - **Grade:** 10.9 - **Size:** M4 - **Head Style:** Counter Sunk Bolt - **Groove:** Hexagon - **Finish:** Polishing Sandblasting blackening Available configurations include head style, standard, grade, material and size. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 50,000 pieces at US$0.012 – 1.20 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 Countersunk Flat Head Hex Socket Machine Screws with SS304 316? The listed minimum order is 50,000 pieces, at US$0.012 – 1.20 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 Countersunk Flat Head Hex Socket Machine Screws with SS304 316? Type: Countersunk Head; Standard: DIN; Material: Stainless Steel; Grade: 10.9; Size: M4; Head Style: Counter Sunk Bolt. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include head style, standard, grade, material and 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/) [![Grade 8 Unf Hex Socket Head Cap Screw ASME Black Oxide Alloy Steel with or Without Knurling Plain Allen Screw](https://img.engineeringhardware.com/Grade-8-Unf-Hex-Socket-Head-Cap-Screw-ASME-Black-Oxide-Alloy-Steel-with-or-Without-Knurling-Plain-Allen-Screw.webp)](https://engineeringhardware.com/product/grade-8-unf-hex-socket-head-cap-screw-asme-black-oxide-alloy-steel-with-or-without/) Socket Head Cap & Allen Screws ### [Grade 8 Unf Hex Socket Head Cap Screw ASME Black Oxide Alloy Steel with or Without Knurling Plain Allen Screw](https://engineeringhardware.com/product/grade-8-unf-hex-socket-head-cap-screw-asme-black-oxide-alloy-steel-with-or-without/) Hexagon Head · DIN, GB, ANSI, BSW, JIS, GOST **US$0.012 – 0.06**MOQ 10,000 pieces [![High 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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 Screw](https://engineeringhardware.com/product/customized-hex-socket-shoulder-screw/) Hexagon Head · DIN, ANSI **US$0.24**MOQ 1,000 pieces **US$0.012 – 1.20**MOQ 50,000 piecesGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Countersunk%20Flat%20Head%20Hex%20Socket%20Machine%20Screws%20with%20SS304%20316%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fcountersunk-flat-head-hex-socket-machine-screws-with-ss304-316%2F)