--- title: "Stainless Steel Hexagon Socket Countersunk Head Screws with Reduced Loadability" description: "Stainless Steel Hexagon Socket Countersunk Head Screws with Reduced Loadability — Countersunk & Flat-Head Machine Screws. MOQ 10,000 pieces, US$0.006 – 0.36." url: https://engineeringhardware.com/product/stainless-steel-hexagon-socket-countersunk-head-screws-with-reduced-loadability/ source: Engineering Hardware & Fasteners --- # Stainless Steel Hexagon Socket Countersunk Head Screws with Reduced Loadability [![Stainless Steel Hexagon Socket Countersunk Head Screws with Reduced Loadability](https://img.engineeringhardware.com/Stainless-Steel-Hexagon-Socket-Countersunk-Head-Screws-with-Reduced-Loadability.webp)](https://img.engineeringhardware.com/Stainless-Steel-Hexagon-Socket-Countersunk-Head-Screws-with-Reduced-Loadability.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/stainless-steel-hexagon-socket-countersunk-head-screws-with-reduced-loadability.md) Model no. **DIN7991** US$0.006 – 0.36 / piece MOQ 10,000 pieces · Final price confirmed in your quote - **Head Style:** Butterfly or Wing - **Standard:** DIN, GB, ANSI, BSW, JIS, GOST - **Grade:** 8.8 - **Size:** M3-M10 - **Package Size:** 100.00cm * 100.00cm * 100.00cm - **Material:** Stainless Steel 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%20Hexagon%20Socket%20Countersunk%20Head%20Screws%20with%20Reduced%20Loadability%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fstainless-steel-hexagon-socket-countersunk-head-screws-with-reduced-loadability%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 | Model NO. | DIN7991 | | --- | --- | | Groove | Butterfly | | Connection | Common Bolt | | Head Style | Butterfly or Wing | | Standard | DIN, GB, ANSI, BSW, JIS, GOST | | Grade | 8.8 | | Delivery | 7-15days | | Pay Term | Tt 30% Deposit | | Size | M3-M10 | | Certificate | ISO9001 | | Transport Package | Cartonboxes | | Specification | M3-M10 | | Origin | China | | HS Code | 7318159090 | | Production Capacity | 500ton/Month | | Package Size | 100.00cm * 100.00cm * 100.00cm | | Package Gross Weight | 500.000kg | | Customization | Available | | Material | Stainless Steel | | Type | Butterfly | | Shipping Cost | Contact the supplier about freight and estimated delivery time. | | Category | [Countersunk & Flat-Head Machine Screws](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/) | ## Technical parameters | PARAMETERS | | | --- | --- | | Item | Hexagon socket countersunk screw | | Spec | M2-M10 | | Material | Stainless Steel, carbon steel,copper | | Grade | 4.8, 8.8, 10.9, 12.9 | | Standard | GB, DIN, UNS,JIS | | Surface Finish | Natural, Black, White-plated zinc, Color zinc, Nickel, Dacromet, Polished, Zinc-nickel alloy, Hot-dip galvanized, etc. | | Delivery Time | 7-20Days | | Package | cartonboxes or PE bag | ## Description Stainless Steel Hexagon Socket Countersunk Head Screws with Reduced Loadability is part of our countersunk & flat-head machine screws range (Screws). ### Key details - **Type:** Butterfly - **Standard:** DIN, GB, ANSI, BSW, JIS, GOST - **Material:** Stainless Steel - **Grade:** 8.8 - **Size:** M3-M10 - **Head Style:** Butterfly or Wing - **Groove:** Butterfly - **Connection:** Common Bolt Available configurations include head style, standard, grade, size and package size. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 10,000 pieces at US$0.006 – 0.36 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 Hexagon Socket Countersunk Head Screws with Reduced Loadability? The listed minimum order is 10,000 pieces, at US$0.006 – 0.36 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 Stainless Steel Hexagon Socket Countersunk Head Screws with Reduced Loadability? Type: Butterfly; Standard: DIN, GB, ANSI, BSW, JIS, GOST; Material: Stainless Steel; Grade: 8.8; Size: M3-M10; Head Style: Butterfly or Wing. 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, size 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 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/) [![Custom Colorfully Anodized Aluminum DIN 7991 Hex Countersunk Head Machine Screw for RC Toys](https://img.engineeringhardware.com/Custom-Colorfully-Anodized-Aluminum-DIN-7991-Hex-Countersunk-Head-Machine-Screw-for-RC-Toys.webp)](https://engineeringhardware.com/product/custom-colorfully-anodized-aluminum-din-7991-hex-countersunk-head-machine-screw-for/) Countersunk & Flat-Head Machine Screws ### [Custom Colorfully Anodized Aluminum DIN 7991 Hex Countersunk Head Machine Screw for RC Toys](https://engineeringhardware.com/product/custom-colorfully-anodized-aluminum-din-7991-hex-countersunk-head-machine-screw-for/) Flat Gasket · Aluminum Alloy **US$0.0001 – 0.0012**MOQ 10,000 pieces [![Premium Phillips Flat Countersunk Head Screws with 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