--- title: "3″ Double Head Nail/ Two Head Nail/ Duplex Nail" description: "3″ Double Head Nail/ Two Head Nail/ Duplex Nail — Common, Ring-Shank & Specialty Nails. Material: Iron. MOQ 10 tons, US$1,020 – 1,080." url: https://engineeringhardware.com/product/3-double-head-nail-two-head-nail-duplex-nail/ source: Engineering Hardware & Fasteners --- # 3″ Double Head Nail/ Two Head Nail/ Duplex Nail [![3″ Double Head Nail/ Two Head Nail/ Duplex Nail](https://img.engineeringhardware.com/3-Double-Head-Nail-Two-Head-Nail-Duplex-Nail.webp)](https://img.engineeringhardware.com/3-Double-Head-Nail-Two-Head-Nail-Duplex-Nail.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Nails, Staples & Tacks › Common, Ring-Shank & Specialty Nails](https://engineeringhardware.com/fastener-products/nails-staples-tacks/common-ring-shank-specialty-nails/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/3-double-head-nail-two-head-nail-duplex-nail.md) Model no. **75mm*3.5mm** | **US$1,080**10–24 tons | **US$1,020**25+ tons | | --- | --- | MOQ 10 tons · Final price confirmed in your quote - **Material:** Iron - **Surface:** Bright/Galvanized - **Head:** Double Head Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%203%26%238243%3B%20Double%20Head%20Nail%2F%20Two%20Head%20Nail%2F%20Duplex%20Nail%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2F3-double-head-nail-two-head-nail-duplex-nail%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 | Type | Duplex Nail | | --- | --- | | Material | Iron | | Surface | Bright/Galvanized | | Model NO. | 75mm*3.5mm | | Price Term | Fob, CIF, EXW | | Delivery | 15-30days | | Market | South America | | Head | Double Head | | Transport Package | Carton, Pallet | | Specification | 1 3/4"to 4" | | Origin | Tianjin, China | | HS Code | 73170000 | | Production Capacity | 3500tons Per Month | | Product Description | -- 6D to 30D( 1-3/4"-4") | | Usage | For applying | | Factory Show | COMPANY PROFILE | | Category | [Common, Ring-Shank & Specialty Nails](https://engineeringhardware.com/fastener-products/nails-staples-tacks/common-ring-shank-specialty-nails/) | ## Technical parameters | Material | Q195/Q235 | | --- | --- | | Surface Treatment | Bright, E.G, HDG, M.G, V.C, C.C, P.C and so on | | Head | Double head | | Shank | Smooth Shank | | Point | Diamond Point | | Kinds of Packing | Carton, Plastic bag, Box, Bucket, Plastic box, Wooden case | | Advantage | Big real factory, we can satisfy you products with good quality, fast delivery and satisfied service | | Size | Length under lower head in. | Gaga No. | Distance between head in | Diam lower head in. | | --- | --- | --- | --- | --- | | 6D | 1-3/4 | 11 -1/2 | 1/4 | 17/64 | | 8D | 2-1/4 | 10- 1/4 | 1/4 | 9/32 | | 10D | 2-3/4 | 9 | 5/16 | 5/16 | | 16D | 3 | 8 | 3/8 | 11/32 | | 20D | 3-1/2 | 7 | 7/16 | 3/8 | | 30D | 4 | 6 | 7/16 | 7/16 | ## Description 3″ Double Head Nail/ Two Head Nail/ Duplex Nail is part of our common, ring-shank & specialty nails range (Nails, Staples & Tacks). ### Key details - **Type:** Duplex Nail - **Material:** Iron - **Surface:** Bright/Galvanized - **Price Term:** Fob, CIF, EXW - **Market:** South America - **Head:** Double Head - **Product Description:** — 6D to 30D( 1-3/4"-4") - **Usage:** For applying Available configurations include material, surface and head. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 10 tons at US$1,020 – 1,080 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 3″ Double Head Nail/ Two Head Nail/ Duplex Nail? The listed minimum order is 10 tons, at US$1,020 – 1,080 per ton. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size. ### How does the price change with quantity? Volume pricing: US$1,080 for 10–24 tons; US$1,020 for 25+ tons. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of 3″ Double Head Nail/ Two Head Nail/ Duplex Nail? Type: Duplex Nail; Material: Iron; Surface: Bright/Galvanized; Price Term: Fob, CIF, EXW; Market: South America; Head: Double Head. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include material, surface and head. 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 common, ring-shank & specialty nails are available? The Common, Ring-Shank & Specialty Nails category lists 5,413 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/nails-staples-tacks/common-ring-shank-specialty-nails/](https://engineeringhardware.com/fastener-products/nails-staples-tacks/common-ring-shank-specialty-nails/) 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 Common, Ring-Shank & Specialty Nails →](https://engineeringhardware.com/fastener-products/nails-staples-tacks/common-ring-shank-specialty-nails/) [![Q195 Good Price Polished or Galvanized Square Boat Nail 1”-6” Boat Buiding](https://img.engineeringhardware.com/Q195-Good-Price-Polished-or-Galvanized-Square-Boat-Nail-1-6-Boat-Buiding.webp)](https://engineeringhardware.com/product/q195-good-price-polished-or-galvanized-square-boat-nail-1-6-boat-buiding/) Common, Ring-Shank & Specialty Nails ### [Q195 Good Price Polished or Galvanized Square Boat Nail 1”-6” Boat Buiding](https://engineeringhardware.com/product/q195-good-price-polished-or-galvanized-square-boat-nail-1-6-boat-buiding/) Connection · International **US$840.00 – 1,200**MOQ 2 tons [![Nail-Holding-Power Wear-Resistant Composite Pest-Resistant WPC Fence for Residential 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