--- title: "Carbon Steel Galvanized Custom Square & Rectangular Flat Threaded Nut" description: "Carbon Steel Galvanized Custom Square & Rectangular Flat Threaded Nut — T-Nuts, Slot Nuts & Channel Spring Nuts. MOQ 10,000 pieces, US$0.012 – 0.12." url: https://engineeringhardware.com/product/carbon-steel-galvanized-custom-square-rectangular-flat-threaded-nut/ source: Engineering Hardware & Fasteners --- # Carbon Steel Galvanized Custom Square & Rectangular Flat Threaded Nut [![Carbon Steel Galvanized Custom Square & Rectangular Flat Threaded Nut](https://img.engineeringhardware.com/Carbon-Steel-Galvanized-Custom-Square-Rectangular-Flat-Threaded-Nut.webp)](https://img.engineeringhardware.com/Carbon-Steel-Galvanized-Custom-Square-Rectangular-Flat-Threaded-Nut.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Nuts › T-Nuts, Slot Nuts & Channel Spring Nuts](https://engineeringhardware.com/fastener-products/nuts/t-nuts-slot-nuts-channel-spring-nuts/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/carbon-steel-galvanized-custom-square-rectangular-flat-threaded-nut.md) Model no. **HysLMW028** US$0.012 – 0.12 / piece MOQ 10,000 pieces · Final price confirmed in your quote - **Material:** Carbon Steel - **Head Style:** Square / Rectangular (Flat Block) - **Standard:** DIN, ANSI, GB, JIS, GOST, BSW, ISO - **Grade:** Grade 4.8 / 8.8 (or Custom Grade) - **Customized:** Yes - **Material Grade:** Carbon Steel Q235 / 1018 / 1045 (or Custom Grade) - **Surface Treatment:** Zinc Plated / Hot-DIP Galvanized - **Tolerance Grade:** ISO Standard,6h Thread,±0.02mm Dimension Tolerance Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Carbon%20Steel%20Galvanized%20Custom%20Square%20%26amp%3B%20Rectangular%20Flat%20Threaded%20Nut%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fcarbon-steel-galvanized-custom-square-rectangular-flat-threaded-nut%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 | (Square/Rectangular Flat Nut | | Model NO. | HysLMW028 | | Connection | Threaded Connection | | Head Style | Square / Rectangular (Flat Block) | | Standard | DIN, ANSI, GB, JIS, GOST, BSW, ISO | | Grade | Grade 4.8 / 8.8 (or Custom Grade) | | Customized | Yes | | Drawing | Yes | | Application | Construction,Extrusion Profile Assembly | | Process | CNC Machining,Precision Milling,Thread Tapping | | Product Type | Square / Rectangular Flat Threaded Nut | | Service | We Support OEM and ODM | | Material Grade | Carbon Steel Q235 / 1018 / 1045 (or Custom Grade) | | Surface Treatment | Zinc Plated / Hot-DIP Galvanized | | Key Features | Anti-Rust Galvanized Finish, High Precision Thread | | Tolerance Grade | ISO Standard,6h Thread,±0.02mm Dimension Tolerance | | Quality Control | 100% Thread Inspection, Dimensional Testing | | Transport Package | Polybag+Export Strong Carton | | Specification | Custom Sizes | | Origin | China | | HS Code | 7318160000 | | Production Capacity | 100ton/Month | | Package Size | 30.00cm * 20.00cm * 20.00cm | | Package Gross Weight | 0.500kg | | Non-standard parts | 15-25days | | Category | [T-Nuts, Slot Nuts & Channel Spring Nuts](https://engineeringhardware.com/fastener-products/nuts/t-nuts-slot-nuts-channel-spring-nuts/) | ## Technical parameters | Item | Details | | --- | --- | | Product Name | Carbon Steel Galvanized Square & Rectangular Flat Threaded Nut | | Material | Carbon Steel (Q235 / 1018 / 1045, Grade 4.8 / 8.8 or Custom) | | Surface Treatment | Zinc Plated / Hot-Dip Galvanized / Plain Finish | | Thread Standard | ISO Standard 6H Thread, compatible with DIN / ANSI / GB / JIS / GOST / BSW | | Tolerance | ±0.02mm dimension tolerance, high-precision machining | | Customization | OEM / ODM available (custom size, shape, thread, finish, logo) | | Drawing Support | Custom drawing service available | | Size Range | Custom sizes (e.g., 10×10×3mm, 20×10×4mm, M3-M12 thread) | | Application | Construction, machinery, furniture, extrusion profile assembly, automotive, 3D printer | | Production Process | CNC machining, precision milling, thread tapping, galvanizing, quality inspection | | Key Features | Anti-rust galvanized finish, flat low-profile design, firm thread locking, durable and cost-effective | | Quality Control | 100% thread inspection, dimensional check, salt spray test available | | Packaging | Polybag + export strong carton, or pallet packing as per request | | MOQ | Small MOQ acceptable, bulk order supported | | Delivery Time | 7-15 working days for standard orders | | Service | Custom design, technical support, fast response | | Place of Origin | China | ## Description Carbon Steel Galvanized Custom Square & Rectangular Flat Threaded Nut is part of our t-nuts, slot nuts & channel spring nuts range (Nuts). ### Key details - **Type:** (Square/Rectangular Flat Nut - **Standard:** DIN, ANSI, GB, JIS, GOST, BSW, ISO - **Material:** Carbon Steel - **Grade:** Grade 4.8 / 8.8 (or Custom Grade) - **Head Style:** Square / Rectangular (Flat Block) - **Surface Treatment:** Zinc Plated / Hot-DIP Galvanized - **Connection:** Threaded Connection - **Application:** Construction,Extrusion Profile Assembly Available configurations include material, head style, standard, grade and customized. 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$0.012 – 0.12 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 Carbon Steel Galvanized Custom Square & Rectangular Flat Threaded Nut? The listed minimum order is 10,000 pieces, at US$0.012 – 0.12 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 Carbon Steel Galvanized Custom Square & Rectangular Flat Threaded Nut? Type: (Square/Rectangular Flat Nut; Standard: DIN, ANSI, GB, JIS, GOST, BSW, ISO; Material: Carbon Steel; Grade: Grade 4.8 / 8.8 (or Custom Grade); Head Style: Square / Rectangular (Flat Block); Surface Treatment: Zinc Plated / Hot-DIP Galvanized. 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 customized. 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 t-nuts, slot nuts & channel spring nuts are available? The T-Nuts, Slot Nuts & Channel Spring Nuts category lists 1,888 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/nuts/t-nuts-slot-nuts-channel-spring-nuts/](https://engineeringhardware.com/fastener-products/nuts/t-nuts-slot-nuts-channel-spring-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 T-Nuts, Slot Nuts & Channel Spring Nuts →](https://engineeringhardware.com/fastener-products/nuts/t-nuts-slot-nuts-channel-spring-nuts/) [![T Slot Sliding Nut, Spring Loaded Slide T Nut Aluminum Profile Fastene](https://img.engineeringhardware.com/T-Slot-Sliding-Nut-Spring-Loaded-Slide-T-Nut-Aluminum-Profile-Fastene.webp)](https://engineeringhardware.com/product/t-slot-sliding-nut-spring-loaded-slide-t-nut-aluminum-profile-fastene/) T-Nuts, Slot Nuts & Channel Spring Nuts ### [T Slot Sliding Nut, Spring Loaded Slide T Nut Aluminum Profile Fastene](https://engineeringhardware.com/product/t-slot-sliding-nut-spring-loaded-slide-t-nut-aluminum-profile-fastene/) T Head · DIN, ANSI, GB, JIS **US$0.066 – 0.096**MOQ 1,000 pieces [![Stainless Steel T-Slot Nut, Suitable for Outdoor 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