--- title: "Hex Nuts Flange Nuts Square Nuts Thin Nuts Nylon Insert Lock Nutswing Nuts Channel Nuts Coupling Nuts Weld Nuts" description: "Hex Nuts Flange Nuts Square Nuts Thin Nuts Nylon Insert Lock Nutswing Nuts Channel Nuts… — Countersunk & Flat-Head Machine Screws." url: https://engineeringhardware.com/product/hex-nuts-flange-nuts-square-nuts-thin-nuts-nylon-insert-lock-nutswing-nuts-channel/ source: Engineering Hardware & Fasteners --- # Hex Nuts Flange Nuts Square Nuts Thin Nuts Nylon Insert Lock Nutswing Nuts Channel Nuts Coupling Nuts Weld Nuts [![Hex Nuts Flange Nuts Square Nuts Thin Nuts Nylon Insert Lock Nutswing Nuts Channel Nuts Coupling Nuts Weld Nuts](https://img.engineeringhardware.com/Hex-Nuts-Flange-Nuts-Square-Nuts-Thin-Nuts-Nylon-Insert-Lock-Nutswing-Nuts-Channel-Nuts-Coupling-Nuts-Weld-Nuts.webp)](https://img.engineeringhardware.com/Hex-Nuts-Flange-Nuts-Square-Nuts-Thin-Nuts-Nylon-Insert-Lock-Nutswing-Nuts-Channel-Nuts-Coupling-Nuts-Weld-Nuts.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/hex-nuts-flange-nuts-square-nuts-thin-nuts-nylon-insert-lock-nutswing-nuts-channel.md) Model no. **m3-m20** US$0.48 – 0.72 / piece MOQ 1,000 pieces · Final price confirmed in your quote - **Head Style:** Round - **Standard:** DIN, GB, ANSI, BSW, JIS - **Grade:** 12.9 - **Material:** Stainless Steel - **C. Raw material warehouse:** Our screws are made with first quality materials,all our suppliers carry out strict quality controls on the materials in order to get the best quality performance as required by our internal procedures. Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Hex%20Nuts%20Flange%20Nuts%20Square%20Nuts%20Thin%20Nuts%20Nylon%20Insert%20Lock%20Nutswing%20Nuts%20Channel%20Nuts%20Coupling%20Nuts%20Weld%20Nuts%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fhex-nuts-flange-nuts-square-nuts-thin-nuts-nylon-insert-lock-nutswing-nuts-channel%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. | m3-m20 | | --- | --- | | Groove | Special Shape | | Connection | Common Bolt | | Head Style | Round | | Standard | DIN, GB, ANSI, BSW, JIS | | Grade | 12.9 | | Transport Package | Paper Box | | Specification | M4-M10 | | Origin | Dongguan | | HS Code | 7415339000 | | Production Capacity | 1000000PCE | | Customization | Available | | Material | Stainless Steel | | Type | Countersunk Head | | Shipping Cost | Contact the supplier about freight and estimated delivery time. | | C. Raw material warehouse | Our screws are made with first quality materials,all our suppliers carry out strict quality controls on the materials in order to get the best quality performance as required by our internal procedures. | | ISO9001 | 2008 | | please don't hesitate to contact with me as below | Helen | | Category | [Countersunk & Flat-Head Machine Screws](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/) | ## Description Hex Nuts Flange Nuts Square Nuts Thin Nuts Nylon Insert Lock Nutswing Nuts Channel Nuts Coupling Nuts Weld Nuts is part of our countersunk & flat-head machine screws range (Screws). ### Key details - **Type:** Countersunk Head - **Standard:** DIN, GB, ANSI, BSW, JIS - **Material:** Stainless Steel - **Grade:** 12.9 - **Head Style:** Round - **Groove:** Special Shape - **Connection:** Common Bolt - **ISO9001:** 2008 Available configurations include head style, standard, grade, material and c. raw material warehouse. 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$0.48 – 0.72 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 Hex Nuts Flange Nuts Square Nuts Thin Nuts Nylon Insert Lock Nutswing Nuts Channel Nuts Coupling Nuts Weld Nuts? The listed minimum order is 1,000 pieces, at US$0.48 – 0.72 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 Hex Nuts Flange Nuts Square Nuts Thin Nuts Nylon Insert Lock Nutswing Nuts Channel Nuts Coupling Nuts Weld Nuts? Type: Countersunk Head; Standard: DIN, GB, ANSI, BSW, JIS; Material: Stainless Steel; Grade: 12.9; Head Style: Round; Groove: Special Shape. 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 c. raw material warehouse. 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/) [![Wood Building Screw Double Countersunk Head Torx Drive with 6nibs&Type17 Cutting Point](https://img.engineeringhardware.com/Wood-Building-Screw-Double-Countersunk-Head-Torx-Drive-with-6nibs-Type17-Cutting-Point.webp)](https://engineeringhardware.com/product/wood-building-screw-double-countersunk-head-torx-drive-with-6nibs-type17-cutting/) Countersunk & Flat-Head Machine Screws ### [Wood Building Screw Double Countersunk Head Torx Drive with 6nibs&Type17 Cutting Point](https://engineeringhardware.com/product/wood-building-screw-double-countersunk-head-torx-drive-with-6nibs-type17-cutting/) Countersunk Head · DIN **Price on request**MOQ 200,000 pieces [![Cross Recessed Flat Head Step Screws Trivalent Color Zinc Plated, Torx Drive 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