--- title: "Rod Coupling Hex Nut/Galvanized Long Hex Nut / Connection Thread Nut M6/M8" description: "Rod Coupling Hex Nut/Galvanized Long Hex Nut / Connection Thread Nut M6/M8 — Hex & Other Standard Nuts. MOQ 1 ton, US$1,200 – 1,224." url: https://engineeringhardware.com/product/rod-coupling-hex-nut-galvanized-long-hex-nut-connection-thread-nut-m6-m8/ source: Engineering Hardware & Fasteners --- # Rod Coupling Hex Nut/Galvanized Long Hex Nut / Connection Thread Nut M6/M8 [![Rod Coupling Hex Nut/Galvanized Long Hex Nut / Connection Thread Nut M6/M8](https://img.engineeringhardware.com/Rod-Coupling-Hex-Nut-Galvanized-Long-Hex-Nut-Connection-Thread-Nut-M6-M8.webp)](https://img.engineeringhardware.com/Rod-Coupling-Hex-Nut-Galvanized-Long-Hex-Nut-Connection-Thread-Nut-M6-M8.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Nuts › Hex & Other Standard Nuts](https://engineeringhardware.com/fastener-products/nuts/hex-other-standard-nuts/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/rod-coupling-hex-nut-galvanized-long-hex-nut-connection-thread-nut-m6-m8.md) US$1,200 – 1,224 / ton MOQ 1 ton · Final price confirmed in your quote - **Material:** Carbon Steel - **Head Style:** Hexagonal - **Standard:** DIN - **Grade:** 4.8 - **Diameter:** M2-M12 ST2.2-6.3 - **Surface:** zinc /blue/yellow /Dacromet/Plated, plain, hot DIP galvanizing, - **Length:** 12-500mm; 1/2"-10" Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Rod%20Coupling%20Hex%20Nut%2FGalvanized%20Long%20Hex%20Nut%20%2F%20Connection%20Thread%20Nut%20M6%2FM8%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Frod-coupling-hex-nut-galvanized-long-hex-nut-connection-thread-nut-m6-m8%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 | Carbon Steel | | Type | Hexagon Head | | Connection | Common Bolt | | Head Style | Hexagonal | | Standard | DIN | | Grade | 4.8 | | Origin | Jiaxing, China | | HS Code | 73181600 | | Production Capacity | 10000ton/Year | | Our features | Material | | Diameter | M2-M12 ST2.2-6.3 | | Surface | zinc /blue/yellow /Dacromet/Plated, plain, hot DIP galvanizing, | | Length | 12-500mm; 1/2"-10" | | Thickness | Customized | | Company Advantages | 1. OEM/ODM services are available | | Category | [Hex & Other Standard Nuts](https://engineeringhardware.com/fastener-products/nuts/hex-other-standard-nuts/) | ## Technical parameters | Material | Stainless Steel ,Galvanized , Pure, Aluminum, Aluminum alloy,Carbon Steel Etc | | --- | --- | | Standard | DIN, ANSI/ASME. BSW, ISO, etc | | Diameter: | M2-M12 ST2.2-6.3 | | Surface: | zinc /blue/yellow /Dacromet/Plated, plain, hot DIP galvanizing, | | Grade: | 4.8 / 8.8 / 10.9 | | Length: | 12-500mm; 1/2"-10" | | Tolerance | +/- 0.01--0.05mm / can also be customized. | | Size | Customized | | Thickness: | Customized | | Package | Inner pearl button,outside carton box, or customized | | Payment | 30%T/T + 70% T/T | | OEM | OEM and ODM are welcome | ## Description Rod Coupling Hex Nut/Galvanized Long Hex Nut / Connection Thread Nut M6/M8 is part of our hex & other standard nuts range (Nuts). ### Key details - **Type:** Hexagon Head - **Standard:** DIN - **Material:** Carbon Steel - **Grade:** 4.8 - **Diameter:** M2-M12 ST2.2-6.3 - **Length:** 12-500mm; 1/2"-10" - **Head Style:** Hexagonal - **Connection:** Common Bolt Available configurations include material, head style, standard, grade and diameter. 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$1,200 – 1,224 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 Rod Coupling Hex Nut/Galvanized Long Hex Nut / Connection Thread Nut M6/M8? The listed minimum order is 1 ton, at US$1,200 – 1,224 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 Rod Coupling Hex Nut/Galvanized Long Hex Nut / Connection Thread Nut M6/M8? Type: Hexagon Head; Standard: DIN; Material: Carbon Steel; Grade: 4.8; Diameter: M2-M12 ST2.2-6.3; Length: 12-500mm; 1/2"-10". 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 diameter. 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 hex & other standard nuts are available? The Hex & Other Standard Nuts category lists 8,354 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/nuts/hex-other-standard-nuts/](https://engineeringhardware.com/fastener-products/nuts/hex-other-standard-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/) ## 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