--- title: "Special Square Nuts Threaded DIN557 / Uni5597 / Cns4067" description: "Special Square Nuts Threaded DIN557 / Uni5597 / Cns4067 — Square Nuts. Material: Carbon Steel, Grade: 4.8. MOQ 20,000 pieces, US$0.012 – 0.036." url: https://engineeringhardware.com/product/special-square-nuts-threaded-din557-uni5597-cns4067/ source: Engineering Hardware & Fasteners --- # Special Square Nuts Threaded DIN557 / Uni5597 / Cns4067 [![Special Square Nuts Threaded DIN557 / Uni5597 / Cns4067](https://img.engineeringhardware.com/Special-Square-Nuts-Threaded-DIN557-Uni5597-Cns4067.webp)](https://img.engineeringhardware.com/Special-Square-Nuts-Threaded-DIN557-Uni5597-Cns4067.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Nuts › Square Nuts](https://engineeringhardware.com/fastener-products/nuts/square-nuts/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/special-square-nuts-threaded-din557-uni5597-cns4067.md) Model no. **DIN557 / 798** | **US$0.036**20,000–99,999 pieces | **US$0.012**100,000+ pieces | | --- | --- | MOQ 20,000 pieces · Final price confirmed in your quote - **Material:** Carbon Steel - **Head Style:** Square - **Standard:** DIN, ANSI, GB, JIS, GOST, BSW - **Grade:** 4.8 - **Surface treatment:** Zn- Plated,Ni-plated,Passivated,Tin-plated,Sandblast and Anodize,Polish,Electro Painting,Black Anodize,Plain,Chrome plated,Hot Deep Galvanize(H. D. G. ) etc. Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Special%20Square%20Nuts%20Threaded%20DIN557%20%2F%20Uni5597%20%2F%20Cns4067%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fspecial-square-nuts-threaded-din557-uni5597-cns4067%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 Head | | Model NO. | DIN557 / 798 | | Connection | Common Bolt | | Head Style | Square | | Standard | DIN, ANSI, GB, JIS, GOST, BSW | | Grade | 4.8 | | Transport Package | 25kg Per Carton, 36 Cartons Per Pallet | | Specification | DIN, ANSI/ASME, , BSW, JISB, ISO, GB | | Origin | Jiaxing | | HS Code | 731816 | | Production Capacity | 8000 Tons Per Year, 100ton/Month | | Our company supply various kinds of hex nut, such as | A563 A194 DIN934 DIN6915 Heavy Hex Nuts | | Product name | din 557/798 threaded square nuts | | Surface treatment | Zn- Plated,Ni-plated,Passivated,Tin-plated,Sandblast and Anodize,Polish,Electro Painting,Black Anodize,Plain,Chrome plated,Hot Deep Galvanize(H. D. G. ) etc. | | Category | [Square Nuts](https://engineeringhardware.com/fastener-products/nuts/square-nuts/) | ## Technical parameters | Product name: | din 557/798 threaded square nuts | | --- | --- | | Grade: | 4.8, 6.8, 8.8, 10.9, 12.9, A2-70, A4-80 | | Standard: | ISO, GB, BS, DIN, ANSI,JIS, Non-standard | | | 1. Stainless steel: 201,303,304,316,410 | | | 2. Carbon steel: C1006,C1010,C1018,C1022,C1035K,C1045 | | Available material: | 3. Copper: H62,H65,H68 | | | 4. Aluminum: 5056, 6061, 6062, 7075 | | | 5. According to customer demand | | Surface treatment: | Zn- Plated,Ni-plated,Passivated,Tin-plated,Sandblast and Anodize,Polish,Electro Painting,Black Anodize,Plain,Chrome plated,Hot Deep Galvanize(H. D. G. ) etc. | ## Description Special Square Nuts Threaded DIN557 / Uni5597 / Cns4067 is part of our square nuts range (Nuts). ### Key details - **Type:** Square Head - **Standard:** DIN, ANSI, GB, JIS, GOST, BSW - **Material:** Carbon Steel - **Grade:** 4.8 - **Head Style:** Square - **Connection:** Common Bolt - **Our company supply various kinds of hex nut, such as:** A563 A194 DIN934 DIN6915 Heavy Hex Nuts - **Product name:** din 557/798 threaded square nuts Available configurations include material, head style, standard, grade and surface treatment. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 20,000 pieces at US$0.012 – 0.036 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 Special Square Nuts Threaded DIN557 / Uni5597 / Cns4067? The listed minimum order is 20,000 pieces, at US$0.012 – 0.036 per piece. 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$0.036 for 20,000–99,999 pieces; US$0.012 for 100,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of Special Square Nuts Threaded DIN557 / Uni5597 / Cns4067? Type: Square Head; Standard: DIN, ANSI, GB, JIS, GOST, BSW; Material: Carbon Steel; Grade: 4.8; Head Style: Square; Connection: Common Bolt. 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 surface treatment. 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 square nuts are available? The Square Nuts category lists 483 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/nuts/square-nuts/](https://engineeringhardware.com/fastener-products/nuts/square-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 Square Nuts →](https://engineeringhardware.com/fastener-products/nuts/square-nuts/) [![Stainless Steel Aluminum Profile Connector Fittings Square Nut Fittings Parts](https://img.engineeringhardware.com/Stainless-Steel-Aluminum-Profile-Connector-Fittings-Square-Nut-Fittings-Parts.webp)](https://engineeringhardware.com/product/stainless-steel-aluminum-profile-connector-fittings-square-nut-fittings-parts/) Square Nuts ### [Stainless Steel Aluminum Profile Connector Fittings Square Nut Fittings Parts](https://engineeringhardware.com/product/stainless-steel-aluminum-profile-connector-fittings-square-nut-fittings-parts/) T Head · DIN, ANSI, GB, JIS, GOST, BSW, Customized **US$0.0012 – 0.012**MOQ 5,000 pieces [![Standard Blind Rivet with Stainless Steel ISO9001 Clean Surface DIN7337 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