--- title: "Flange Nut 304 Stainless Steel Hexagonal Flange Nuts" description: "Flange Nut 304 Stainless Steel Hexagonal Flange Nuts — Flange Nuts. Material: Carbon Steel, Grade: 4.8. MOQ 1 ton, US$840.00." url: https://engineeringhardware.com/product/flange-nut-304-stainless-steel-hexagonal-flange-nuts/ source: Engineering Hardware & Fasteners --- # Flange Nut 304 Stainless Steel Hexagonal Flange Nuts [![Flange Nut 304 Stainless Steel Hexagonal Flange Nuts](https://img.engineeringhardware.com/Flange-Nut-304-Stainless-Steel-Hexagonal-Flange-Nuts.webp)](https://img.engineeringhardware.com/Flange-Nut-304-Stainless-Steel-Hexagonal-Flange-Nuts.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Nuts › Flange Nuts](https://engineeringhardware.com/fastener-products/nuts/flange-nuts/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/flange-nut-304-stainless-steel-hexagonal-flange-nuts.md) Model no. **M5-20** US$840.00 / ton MOQ 1 ton · Final price confirmed in your quote - **Head Style:** Hexagonal - **Standard:** DIN, ANSI, GB, JIS, GOST, BSW - **Grade:** 4.8 - **Size:** M5-20 - **Finish:** Zinc Plated - **Material:** Carbon 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%20Flange%20Nut%20304%20Stainless%20Steel%20Hexagonal%20Flange%20Nuts%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fflange-nut-304-stainless-steel-hexagonal-flange-nuts%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. | M5-20 | | --- | --- | | Connection | Common Bolt | | Head Style | Hexagonal | | Standard | DIN, ANSI, GB, JIS, GOST, BSW | | Grade | 4.8 | | Size | M5-20 | | MOQ | 100PCS | | Testing | Salt Spray Test | | Finish | Zinc Plated | | Lead Time | 15 Days | | Transport Package | 25 Kgs Bag/Carton Then Pallets | | Specification | 25kg | | Origin | China | | HS Code | 7318160000 | | Production Capacity | 800000ton/Year | | Customization | Available | | Material | Carbon Steel | | Type | Flange | | Shipping Cost | Contact the supplier about freight and estimated delivery time. | | Application | Structural Steel; Metal Buliding; Oil&Gas;Tower&Pole; Wind Energy; Mechanical | | MinimumOrder | according to customer demand | | Trade Term | FOB/CIF/CFR/CNF/EXW | | Category | [Flange Nuts](https://engineeringhardware.com/fastener-products/nuts/flange-nuts/) | ## Technical parameters | Place of Origin | Hebei,China | | --- | --- | | Standard | ASTM/ASME DIN BS ISO etc | | Grade | 2/3/4/5/9 | | Size | M5-M20 | | Finish | Black/Zinc Plated/Hot Dip Galvanized | | Material | Low carbon steel/medium carbon steel/alloy steel | | Deliver Time | 30 Working Days When Advance Payment Recieved | | Package | Cartons Bags&pallets or according to customer''s requirement. | | Non-Standard | OEM is available, according to drawing or samples | | Application: | Structural Steel; Metal Buliding; Oil&Gas;Tower&Pole; Wind Energy; Mechanical | | MinimumOrder: | according to customer demand | | Trade Term: | FOB/CIF/CFR/CNF/EXW | | HS CODE | 7318160000 | ## Description Flange Nut 304 Stainless Steel Hexagonal Flange Nuts is part of our flange nuts range (Nuts). ### Key details - **Type:** Flange - **Standard:** DIN, ANSI, GB, JIS, GOST, BSW - **Material:** Carbon Steel - **Grade:** 4.8 - **Size:** M5-20 - **Head Style:** Hexagonal - **Finish:** Zinc Plated - **Connection:** Common Bolt Available configurations include head style, standard, grade, size and finish. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 1 ton at US$840.00 per ton. 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 Flange Nut 304 Stainless Steel Hexagonal Flange Nuts? The listed minimum order is 1 ton, at US$840.00 per ton. 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 Flange Nut 304 Stainless Steel Hexagonal Flange Nuts? Type: Flange; Standard: DIN, ANSI, GB, JIS, GOST, BSW; Material: Carbon Steel; Grade: 4.8; Size: M5-20; Head Style: Hexagonal. 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 finish. 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 flange nuts are available? The Flange Nuts category lists 1,193 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/nuts/flange-nuts/](https://engineeringhardware.com/fastener-products/nuts/flange-nuts/) 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 Flange Nuts →](https://engineeringhardware.com/fastener-products/nuts/flange-nuts/) [![Premium Hex Flange Nuts ANSI ASME B 18.2.2 Standard](https://img.engineeringhardware.com/Premium-Hex-Flange-Nuts-ANSI-ASME-B-18-2-2-Standard.webp)](https://engineeringhardware.com/product/premium-hex-flange-nuts-ansi-asme-b-18-2-2-standard/) Flange Nuts ### [Premium Hex Flange Nuts ANSI ASME B 18.2.2 Standard](https://engineeringhardware.com/product/premium-hex-flange-nuts-ansi-asme-b-18-2-2-standard/) Flanged or Collared Hex Nuts · DIN, ANSI, GB, JIS, GOST, BSW **US$0.012 – 0.12**MOQ 10,000 pieces [![Premium Customized Galvanized Carbon Steel Round Self Locking Platedhex Flange Nut M3-M50](https://img.engineeringhardware.com/Premium-Customized-Galvanized-Carbon-Steel-Round-Self-Locking-Platedhex-Flange-Nut-M3-M50.webp)](https://engineeringhardware.com/product/premium-customized-galvanized-carbon-steel-round-self-locking-platedhex-flange-nut/) Flange Nuts ### [Premium Customized Galvanized Carbon Steel Round Self Locking Platedhex Flange Nut M3-M50](https://engineeringhardware.com/product/premium-customized-galvanized-carbon-steel-round-self-locking-platedhex-flange-nut/) Hexagon Head · DIN, ANSI, GB, JIS **US$2.40 – 12.00**MOQ 1 box [![ISO 4161 Stainless Steel Hex Flange Nuts (SS 201/304/316)](https://img.engineeringhardware.com/ISO-4161-Stainless-Steel-Hex-Flange-Nuts-SS-201-304-316.webp)](https://engineeringhardware.com/product/iso-4161-stainless-steel-hex-flange-nuts-ss-201-304-316/) Flange Nuts ### [ISO 4161 Stainless Steel Hex Flange Nuts (SS 201/304/316)](https://engineeringhardware.com/product/iso-4161-stainless-steel-hex-flange-nuts-ss-201-304-316/) Flange Nut · ISO **US$0.0012**MOQ 10,000 pieces [![Premium Zinc-Plated Hex Head Flange Nuts for M3-M12 Equipment](https://img.engineeringhardware.com/Premium-Zinc-Plated-Hex-Head-Flange-Nuts-for-M3-M12-Equipment.webp)](https://engineeringhardware.com/product/premium-zinc-plated-hex-head-flange-nuts-for-m3-m12-equipment/) Flange Nuts ### [Premium Zinc-Plated Hex Head Flange Nuts for M3-M12 Equipment](https://engineeringhardware.com/product/premium-zinc-plated-hex-head-flange-nuts-for-m3-m12-equipment/) Hexagon Head · DIN **US$0.012 – 0.036**MOQ 1,000 pieces [![Auto Parts DIN6923 Hex Flange Nuts for Motorcycle Accessories Stainless Steel/Carbon Steel Nuts](https://img.engineeringhardware.com/Auto-Parts-DIN6923-Hex-Flange-Nuts-for-Motorcycle-Accessories-Stainless-Steel-Carbon-Steel-Nuts.webp)](https://engineeringhardware.com/product/auto-parts-din6923-hex-flange-nuts-for-motorcycle-accessories-stainless-steel-carbon/) Flange Nuts ### [Auto Parts DIN6923 Hex Flange Nuts for Motorcycle Accessories Stainless Steel/Carbon Steel Nuts](https://engineeringhardware.com/product/auto-parts-din6923-hex-flange-nuts-for-motorcycle-accessories-stainless-steel-carbon/) Hexagon Head · DIN, ANSI, GB, JIS, GOST, BSW, ISO9001 **US$0.012 – 0.0144**MOQ 10,000 pieces [![Premium 1983 M6 M8 Aluminum Alloy Hexagon Flange Nuts with ISO4161 Fine Pitch Thread for Robust Connections](https://img.engineeringhardware.com/Premium-1983-M6-M8-Aluminum-Alloy-Hexagon-Flange-Nuts-with-ISO4161-Fine-Pitch-Thread-for-Robust-Connections.webp)](https://engineeringhardware.com/product/premium-1983-m6-m8-aluminum-alloy-hexagon-flange-nuts-with-iso4161-fine-pitch-thread/) Flange Nuts ### [Premium 1983 M6 M8 Aluminum Alloy Hexagon Flange Nuts with ISO4161 Fine Pitch Thread for Robust Connections](https://engineeringhardware.com/product/premium-1983-m6-m8-aluminum-alloy-hexagon-flange-nuts-with-iso4161-fine-pitch-thread/) Hexagon Head · DIN, ANSI, GB, JIS, BSW **US$0.0012 – 0.012**MOQ 1,000 pieces [![Zinc Plated Hex Flange Nut, Washer Anti-Slip Self-Locking Fastener](https://img.engineeringhardware.com/Zinc-Plated-Hex-Flange-Nut-Washer-Anti-Slip-Self-Locking-Fastener.webp)](https://engineeringhardware.com/product/zinc-plated-hex-flange-nut-washer-anti-slip-self-locking-fastener/) Flange Nuts ### [Zinc Plated Hex Flange Nut, Washer Anti-Slip Self-Locking Fastener](https://engineeringhardware.com/product/zinc-plated-hex-flange-nut-washer-anti-slip-self-locking-fastener/) DIN, ANSI, GB, JIS, BSW, GOST · Low Carbon Steel **US$0.012**MOQ 10,000 pieces [![DIN6323 Flange Nuts Grade8 with Serration DIN6323 Flange Nuts](https://img.engineeringhardware.com/DIN6323-Flange-Nuts-Grade8-with-Serration-DIN6323-Flange-Nuts.webp)](https://engineeringhardware.com/product/din6323-flange-nuts-grade8-with-serration-din6323-flange-nuts/) Flange Nuts ### [DIN6323 Flange Nuts Grade8 with Serration DIN6323 Flange Nuts](https://engineeringhardware.com/product/din6323-flange-nuts-grade8-with-serration-din6323-flange-nuts/) Hexagon Head · DIN, ANSI, GB, JIS, BSW, GOST **US$840.00**MOQ 1 ton **US$840.00**MOQ 1 tonGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Flange%20Nut%20304%20Stainless%20Steel%20Hexagonal%20Flange%20Nuts%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fflange-nut-304-stainless-steel-hexagonal-flange-nuts%2F)