--- title: "Premium Hex Flange Nut for HVAC Ducting and Installation" description: "Premium Hex Flange Nut for HVAC Ducting and Installation — Flange Nuts. Material: Galvanized Steel, Standard: DIN. MOQ 10,000 pieces, US$0.0168." url: https://engineeringhardware.com/product/premium-hex-flange-nut-for-hvac-ducting-and-installation/ source: Engineering Hardware & Fasteners --- # Premium Hex Flange Nut for HVAC Ducting and Installation [![Premium Hex Flange Nut for HVAC Ducting and Installation](https://img.engineeringhardware.com/Premium-Hex-Flange-Nut-for-HVAC-Ducting-and-Installation.webp)](https://img.engineeringhardware.com/Premium-Hex-Flange-Nut-for-HVAC-Ducting-and-Installation.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/premium-hex-flange-nut-for-hvac-ducting-and-installation.md) Model no. **VA-DF27** US$0.0168 / piece MOQ 10,000 pieces · Final price confirmed in your quote - **Head Style:** Hexagonal - **Standard:** DIN - **Grade:** 8.8 - **Size:** M3 to M12 - **Material:** Galvanized Steel - **A. Materials:** Carbon steel, stainless steel, etc. - **B. Surface treatment:** Zinc-plated, Dacromet, etc. - **D. Standards:** GB DIN ANSI ASME Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Premium%20Hex%20Flange%20Nut%20for%20HVAC%20Ducting%20and%20Installation%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fpremium-hex-flange-nut-for-hvac-ducting-and-installation%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. | VA-DF27 | | --- | --- | | Connection | Common Bolt | | Head Style | Hexagonal | | Standard | DIN | | Grade | 8.8 | | Size | M3 to M12 | | Transport Package | Carton Box and Wooden Box | | Specification | Customized | | Origin | Xiamen | | Production Capacity | 500000 Pieces Per Year | | Customization | Available | | Material | Galvanized Steel | | Type | Hexagon Head | | A. Materials | Carbon steel, stainless steel, etc. | | B. Surface treatment | Zinc-plated, Dacromet, etc. | | C. Serration pattern | Circular or radial arrangement | | D. Standards | GB DIN ANSI ASME | | Dimension parameters | Parameter Definitions | | Tolerance | ±0.2mm | | Model Description | Thread Diameter / D, e.g., M4 | | Note | Dimensions are subject to standard manufacturing tolerances. | | Category | [Flange Nuts](https://engineeringhardware.com/fastener-products/nuts/flange-nuts/) | ## Technical parameters | Thread Diameter (D) | Nut Thickness (H) | Pitch (P) | Flange Diameter (E) | / | Hex Width (N) | | --- | --- | --- | --- | --- | --- | | M3 | 3.55 | 0.5 | 8.0 | / | 5.5 | | M4 | 4.55 | 0.7 | 10.0 | / | 7.0 | | M5 | 5.0 | 0.8 | 11.8 | / | 8.0 | | M6 | 6.0 | 1.0 | 14.2 | / | 10.0 | | M8 | 8.0 | 1.25 | 17.9 | / | 13.0 | | M10 | 10.0 | 1.5 | 21.8 | / | 15.0 | | M12 | 12.0 | 1.75 | 26.0 | / | 18.0 | ## Description Premium Hex Flange Nut for HVAC Ducting and Installation is part of our flange nuts range (Nuts). ### Key details - **Type:** Hexagon Head - **Standard:** DIN - **Material:** Galvanized Steel - **Grade:** 8.8 - **Size:** M3 to M12 - **Head Style:** Hexagonal - **Connection:** Common Bolt - **A. Materials:** Carbon steel, stainless steel, etc. Available configurations include head style, standard, grade, size and material. 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$0.0168 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 Premium Hex Flange Nut for HVAC Ducting and Installation? The listed minimum order is 10,000 pieces, at US$0.0168 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 Premium Hex Flange Nut for HVAC Ducting and Installation? Type: Hexagon Head; Standard: DIN; Material: Galvanized Steel; Grade: 8.8; Size: M3 to M12; 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 material. 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/) [![OEM ODM Anti-Slip A2-70 Stainless Steel DIN6923 Hex Flange Nuts](https://img.engineeringhardware.com/OEM-ODM-Anti-Slip-A2-70-Stainless-Steel-DIN6923-Hex-Flange-Nuts.webp)](https://engineeringhardware.com/product/oem-odm-anti-slip-a2-70-stainless-steel-din6923-hex-flange-nuts/) Flange Nuts ### [OEM ODM Anti-Slip A2-70 Stainless Steel DIN6923 Hex Flange Nuts](https://engineeringhardware.com/product/oem-odm-anti-slip-a2-70-stainless-steel-din6923-hex-flange-nuts/) Hexagon Head · DIN, ANSI, GB, JIS, GOST, BSW **US$0.0048 – 0.0072**MOQ 1,000 pieces [![Stainless Steel Hex Flange Nuts Hexagon Head Nut with Serrated Flange DIN6923](https://img.engineeringhardware.com/Stainless-Steel-Hex-Flange-Nuts-Hexagon-Head-Nut-with-Serrated-Flange-DIN6923.webp)](https://engineeringhardware.com/product/stainless-steel-hex-flange-nuts-hexagon-head-nut-with-serrated-flange-din6923/) Flange Nuts ### [Stainless Steel Hex Flange Nuts Hexagon Head Nut with Serrated Flange DIN6923](https://engineeringhardware.com/product/stainless-steel-hex-flange-nuts-hexagon-head-nut-with-serrated-flange-din6923/) Hexagon Head With Flange · DIN, GB **US$0.012 – 0.12**MOQ 1,000 pieces [![Stainless Steel SS304 DIN6923 Hex Nuts Hexagonal Flange Serrated Nut Wheel Nuts](https://img.engineeringhardware.com/Stainless-Steel-SS304-DIN6923-Hex-Nuts-Hexagonal-Flange-Serrated-Nut-Wheel-Nuts.webp)](https://engineeringhardware.com/product/stainless-steel-ss304-din6923-hex-nuts-hexagonal-flange-serrated-nut-wheel-nuts/) Flange Nuts ### [Stainless Steel SS304 DIN6923 Hex Nuts Hexagonal Flange Serrated Nut Wheel Nuts](https://engineeringhardware.com/product/stainless-steel-ss304-din6923-hex-nuts-hexagonal-flange-serrated-nut-wheel-nuts/) Flange Nut · DIN **US$0.12 – 0.36**MOQ 1,000 pieces [![High-Strength Okl-002 Carbon-Steel Hex Flange Nut for Cement Plants](https://img.engineeringhardware.com/High-Strength-Okl-002-Carbon-Steel-Hex-Flange-Nut-for-Cement-Plants.webp)](https://engineeringhardware.com/product/high-strength-okl-002-carbon-steel-hex-flange-nut-for-cement-plants/) Flange Nuts ### [High-Strength Okl-002 Carbon-Steel Hex Flange Nut for Cement Plants](https://engineeringhardware.com/product/high-strength-okl-002-carbon-steel-hex-flange-nut-for-cement-plants/) Hexagon Head · DIN, ANSI, GB, JIS **US$0.006 – 6.00**MOQ 50,000 pieces [![Carbon Steel Hex Nut Tapered Washer Assembly Locks Movable Flange Nut](https://img.engineeringhardware.com/Carbon-Steel-Hex-Nut-Tapered-Washer-Assembly-Locks-Movable-Flange-Nut.webp)](https://engineeringhardware.com/product/carbon-steel-hex-nut-tapered-washer-assembly-locks-movable-flange-nut/) Flange Nuts ### [Carbon Steel Hex Nut Tapered Washer Assembly Locks Movable Flange Nut](https://engineeringhardware.com/product/carbon-steel-hex-nut-tapered-washer-assembly-locks-movable-flange-nut/) Hexagon Head With Flange · Customizable **US$0.006 – 0.012**MOQ 1,000 pieces [![Black Oxide Anti-Lock Hex Flange Nut M6-M20 for Automotive Assembly](https://img.engineeringhardware.com/Black-Oxide-Anti-Lock-Hex-Flange-Nut-M6-M20-for-Automotive-Assembly.webp)](https://engineeringhardware.com/product/black-oxide-anti-lock-hex-flange-nut-m6-m20-for-automotive-assembly/) Flange Nuts ### [Black Oxide Anti-Lock Hex Flange Nut M6-M20 for Automotive Assembly](https://engineeringhardware.com/product/black-oxide-anti-lock-hex-flange-nut-m6-m20-for-automotive-assembly/) Auto Fasteners · DIN, GB, ISO, ANSI/ASTM, BS, Bsw, JIS etc. **US$0.024 – 0.036**MOQ 20,000 pieces [![Lightweight Titanium Hexagonal Flange Nut with Nylon Locking](https://img.engineeringhardware.com/Lightweight-Titanium-Hexagonal-Flange-Nut-with-Nylon-Locking.webp)](https://engineeringhardware.com/product/lightweight-titanium-hexagonal-flange-nut-with-nylon-locking/) Flange Nuts ### [Lightweight Titanium Hexagonal Flange Nut with Nylon Locking](https://engineeringhardware.com/product/lightweight-titanium-hexagonal-flange-nut-with-nylon-locking/) GR2 · M3/M4/M5/M6/M8/M10,etc. **US$1.92 – 2.40**MOQ 100 pieces [![Wholesale DIN6923 SS304 SS316 Standard M6 M7 M8 M10 Large Serrated Hex Flange Nuts](https://img.engineeringhardware.com/Wholesale-DIN6923-SS304-SS316-Standard-M6-M7-M8-M10-Large-Serrated-Hex-Flange-Nuts.webp)](https://engineeringhardware.com/product/wholesale-din6923-ss304-ss316-standard-m6-m7-m8-m10-large-serrated-hex-flange-nuts/) Flange Nuts ### [Wholesale DIN6923 SS304 SS316 Standard M6 M7 M8 M10 Large Serrated Hex Flange Nuts](https://engineeringhardware.com/product/wholesale-din6923-ss304-ss316-standard-m6-m7-m8-m10-large-serrated-hex-flange-nuts/) Hexagon Head · DIN, ANSI, GB, JIS, GOST, BSW **US$0.012 – 6.79**MOQ 100 pieces **US$0.0168**MOQ 10,000 piecesGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Premium%20Hex%20Flange%20Nut%20for%20HVAC%20Ducting%20and%20Installation%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fpremium-hex-flange-nut-for-hvac-ducting-and-installation%2F)