--- title: "Stainless Steel DIN7991 M3 Hex Socket Countersunk Head Cap Screw" description: "Stainless Steel DIN7991 M3 Hex Socket Countersunk Head Cap Screw — Socket Head Cap & Allen Screws. MOQ 1,000 pieces, US$0.36 – 1.20." url: https://engineeringhardware.com/product/stainless-steel-din7991-m3-hex-socket-countersunk-head-cap-screw/ source: Engineering Hardware & Fasteners --- # Stainless Steel DIN7991 M3 Hex Socket Countersunk Head Cap Screw [![Stainless Steel DIN7991 M3 Hex Socket Countersunk Head Cap Screw](https://img.engineeringhardware.com/Stainless-Steel-DIN7991-M3-Hex-Socket-Countersunk-Head-Cap-Screw.webp)](https://img.engineeringhardware.com/Stainless-Steel-DIN7991-M3-Hex-Socket-Countersunk-Head-Cap-Screw.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/stainless-steel-din7991-m3-hex-socket-countersunk-head-cap-screw.md) Model no. **JINF-FS010** | **US$1.20**1,000–4,999 pieces | **US$0.60**5,000–9,999 pieces | **US$0.36**10,000+ pieces | | --- | --- | --- | MOQ 1,000 pieces · Final price confirmed in your quote - **Material:** Stainless Steel - **Head Style:** Round - **Standard:** DIN, GB, ANSI, BSW, JIS, GOST - **Grade:** A2 A4 - **Size-Dimeter:** M3-M12 - **Size-Length:** 6mm-100mm - **Package Size:** 28.00cm * 26.00cm * 16.00cm - **Size:** M3-M12,Length:6mm-100mm Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Stainless%20Steel%20DIN7991%20M3%20Hex%20Socket%20Countersunk%20Head%20Cap%20Screw%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fstainless-steel-din7991-m3-hex-socket-countersunk-head-cap-screw%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 | Round Head | | Model NO. | JINF-FS010 | | Groove | Socket | | Connection | Common Bolt | | Head Style | Round | | Standard | DIN, GB, ANSI, BSW, JIS, GOST | | Grade | A2 A4 | | Name | Hex Socket Countersunk Cap Screw | | Other Used Name | DIN7991,Socket Flat Head Cap Screw | | Comapny Certificate | ISO9001, SGS | | Product Third-Party Certificate | SGS | | Size-Dimeter | M3-M12 | | Size-Length | 6mm-100mm | | Package | 6 Boxes/Carton, 64-80cartons/Wood Pallet | | Payment Term | Tt or LC at Sight | | Delivery Term | Fob,CNF,CIF,EXW | | MOQ | 5000PCS | | Transport Package | Carton Packing Then on Wood Pallet | | Specification | DIN7991, GB, UNC, BSW | | Origin | China | | HS Code | 7318150000 | | Production Capacity | 50, 000-100, 000PCS Per Day | | Package Size | 28.00cm * 26.00cm * 16.00cm | | Package Gross Weight | 25.000kg | | Lead Time | 15 days (1 - 100000 Pieces) To be negotiated ( > 100000 Pieces) | | Size | M3-M12,Length:6mm-100mm | | Category | [Socket Head Cap & Allen Screws](https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-screws/) | ## Technical parameters | Stainless Steel Hex Socket Countersunk Cap Scew/DIN7991/UNC/BSW/ASTM | | | | --- | --- | --- | | 1 | Standard | DIN7991/UNC/BSW | | 2 | Size | Size:M3-M12,Length:6mm-100mm | | 3 | Material | Stainless Steel | | 4 | Grade | SS304,SS316,SS201,SS202,C276,1.4539,2.4592,B8.B8M,INOX | | 5 | Finish | Polish,Passivate | | 6 | Certificate | SGS | | 7 | Package | Small box package in carton then on wood pallet | | 8 | Delivery Term | FOB,CNF,CIF,EXW | | 9 | MOQ | 500pcs | ## Description Stainless Steel DIN7991 M3 Hex Socket Countersunk Head Cap Screw is part of our socket head cap & allen screws range (Screws). ### Key details - **Type:** Round Head - **Standard:** DIN, GB, ANSI, BSW, JIS, GOST - **Material:** Stainless Steel - **Grade:** A2 A4 - **Size:** M3-M12,Length:6mm-100mm - **Head Style:** Round - **Groove:** Socket - **Connection:** Common Bolt Available configurations include material, head style, standard, grade and size-dimeter. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 1,000 pieces at US$0.36 – 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 Stainless Steel DIN7991 M3 Hex Socket Countersunk Head Cap Screw? The listed minimum order is 1,000 pieces, at US$0.36 – 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. ### How does the price change with quantity? Volume pricing: US$1.20 for 1,000–4,999 pieces; US$0.60 for 5,000–9,999 pieces; US$0.36 for 10,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of Stainless Steel DIN7991 M3 Hex Socket Countersunk Head Cap Screw? Type: Round Head; Standard: DIN, GB, ANSI, BSW, JIS, GOST; Material: Stainless Steel; Grade: A2 A4; Size: M3-M12,Length:6mm-100mm; 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-dimeter. 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 & 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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/) [![Machine Screw Countersunk Head Hex Socket Screw Stainless Steel Customized](https://img.engineeringhardware.com/Machine-Screw-Countersunk-Head-Hex-Socket-Screw-Stainless-Steel-Customized.webp)](https://engineeringhardware.com/product/machine-screw-countersunk-head-hex-socket-screw-stainless-steel-customized/) Socket Head Cap & Allen Screws ### [Machine Screw Countersunk Head Hex Socket Screw Stainless Steel Customized](https://engineeringhardware.com/product/machine-screw-countersunk-head-hex-socket-screw-stainless-steel-customized/) Socket Type · Stainless Steel **US$0.012 – 0.12**MOQ 1,000 pieces [![SUS316 A4-70 DIN912 Hexagon Socket Head Cap Screw for Marine 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