--- title: "316 Stainless Steel Hexagon Socket Countersunk Head Screws" description: "316 Stainless Steel Hexagon Socket Countersunk Head Screws — Countersunk & Flat-Head Machine Screws. MOQ 300 pieces, US$0.36 – 2.40." url: https://engineeringhardware.com/product/316-stainless-steel-hexagon-socket-countersunk-head-screws/ source: Engineering Hardware & Fasteners --- # 316 Stainless Steel Hexagon Socket Countersunk Head Screws [![316 Stainless Steel Hexagon Socket Countersunk Head Screws](https://img.engineeringhardware.com/316-Stainless-Steel-Hexagon-Socket-Countersunk-Head-Screws.webp)](https://img.engineeringhardware.com/316-Stainless-Steel-Hexagon-Socket-Countersunk-Head-Screws.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Screws › Countersunk & Flat-Head Machine Screws](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/316-stainless-steel-hexagon-socket-countersunk-head-screws.md) Model no. **M3-M20** US$0.36 – 2.40 / piece MOQ 300 pieces · Final price confirmed in your quote - **Material:** Stainless Steel - **Head Style:** Round - **Standard:** DIN, GB, ANSI, BSW, JIS, GOST - **Grade:** 6.8 - **Size:** various ad type - **Packing:** bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20316%20Stainless%20Steel%20Hexagon%20Socket%20Countersunk%20Head%20Screws%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2F316-stainless-steel-hexagon-socket-countersunk-head-screws%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 | Stainless Steel | | Type | Fastener | | Model NO. | M3-M20 | | Groove | Slotted | | Connection | Common Bolt | | Head Style | Round | | Standard | DIN, GB, ANSI, BSW, JIS, GOST | | Grade | 6.8 | | MOQ | 100PCS | | Transport Package | Wooden Case Packaging | | Specification | M3-M20 | | Origin | China | | HS Code | 8108909000 | | Production Capacity | 10000 PCS/Year | | Stainless Steel | SS201, SS303, SS304, SS316,SS316L,SS904L,F593 | | DIN | Gr.4.6,4.8,5.6,5.8,8.8,10.9,12.9; SAE: Gr.2,5,8; ASTM: 307A,307B,A325,A394,A490,A449, | | Titanium alloy | GR1,GR2,GR5,GR7-GR23 | | Size | various ad type | | MinimumOrder | according to customer demand | | Packing | bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand | | Application | Structural Steel; Metal Buliding; Oil&Gas;Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating | | Other related products | We need more detail as follow. This will allow us to give you an accurate quotation. | | Product | ________ | | Measure | _______ all (Inside Diameter) x_______(Outside Diameter)x_______(Thickness) | | Order Quantity | _________________pcs | | Where to Shipping | _______________ | | Transportation | If you are interested in our products, please take action to buy or wholesale high quality titanium & stainless steel bolts, nuts and fasteners from our factory. | | Category | [Countersunk & Flat-Head Machine Screws](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/) | ## Technical parameters | Standard: | GB/T 70.3-2008 Hexagon Socket Countersunk Head Screws | | | --- | --- | --- | | Sizes | M3-M20 | | | Material | Stainless Steel: | SS201, SS303, SS304, SS316,SS316L,SS904L,F593 | | Steel Grade: | DIN: Gr.4.6,4.8,5.6,5.8,8.8,10.9,12.9; SAE: Gr.2,5,8; ASTM: 307A,307B,A325,A394,A490,A449, | | | Titanium alloy: | GR1,GR2,GR5,GR7-GR23 | | | NICKLE ALLOY | N4,N6,200,201 AND C276 | | | Finishing | Original,polished Zinc(Yellow,White,Blue,Black),Hop Dip Galvanized(HDG),Black Oxide, Geomet,Dacroment,anodization,Nickel plated,Zinc-Nickel plated | | | Process | cold forging M3-M20 | or customed | ## Description 316 Stainless Steel Hexagon Socket Countersunk Head Screws is part of our countersunk & flat-head machine screws range (Screws). ### Key details - **Type:** Fastener - **Standard:** DIN, GB, ANSI, BSW, JIS, GOST - **Material:** Stainless Steel - **Grade:** 6.8 - **Size:** various ad type - **Head Style:** Round - **Groove:** Slotted - **Connection:** Common Bolt Available configurations include material, head style, standard, grade and size. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 300 pieces at US$0.36 – 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 316 Stainless Steel Hexagon Socket Countersunk Head Screws? The listed minimum order is 300 pieces, at US$0.36 – 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 316 Stainless Steel Hexagon Socket Countersunk Head Screws? Type: Fastener; Standard: DIN, GB, ANSI, BSW, JIS, GOST; Material: Stainless Steel; Grade: 6.8; Size: various ad type; Head Style: Round. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include material, head style, standard, grade 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 countersunk & flat-head machine screws are available? The Countersunk & Flat-Head Machine Screws category lists 2,424 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-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 Countersunk & Flat-Head Machine Screws →](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/) [![Chinese Factory Stainless Steel Socket Allen Countersunk Head Machine Screw](https://img.engineeringhardware.com/Chinese-Factory-Stainless-Steel-Socket-Allen-Countersunk-Head-Machine-Screw.webp)](https://engineeringhardware.com/product/chinese-factory-stainless-steel-socket-allen-countersunk-head-machine-screw/) Countersunk & Flat-Head Machine Screws ### [Chinese Factory Stainless Steel Socket Allen Countersunk Head Machine Screw](https://engineeringhardware.com/product/chinese-factory-stainless-steel-socket-allen-countersunk-head-machine-screw/) Countersunk Head · DIN, ANSI, BSW, JIS **US$0.006 – 0.024**MOQ 10,000 pieces [![High Quality Stainless Steel/Carbon Steel Slotted Countersunk Head Screw 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Countersunk & Flat-Head Machine Screws ### [Building Countersunk Torx/ Star Timber Type 17 Structural Wood Construction Screws](https://engineeringhardware.com/product/building-countersunk-torx-star-timber-type-17-structural-wood-construction-screws/) Countersunk Head · DIN, GB, ANSI, BSW, JIS, GOST **US$1,440 – 2,280**MOQ 1 ton **US$0.36 – 2.40**MOQ 300 piecesGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20316%20Stainless%20Steel%20Hexagon%20Socket%20Countersunk%20Head%20Screws%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2F316-stainless-steel-hexagon-socket-countersunk-head-screws%2F)