--- title: "DIN546 Slotted Round Head Lock Nut" description: "DIN546 Slotted Round Head Lock Nut — Nylon-Insert & All-Metal Lock Nuts. Material: Carbon Steel, Standard: DIN, GB. MOQ 1 kilogram, US$0.72 – 1.44." url: https://engineeringhardware.com/product/din546-slotted-round-head-lock-nut/ source: Engineering Hardware & Fasteners --- # DIN546 Slotted Round Head Lock Nut [![DIN546 Slotted Round Head Lock Nut](https://img.engineeringhardware.com/DIN546-Slotted-Round-Head-Lock-Nut.webp)](https://img.engineeringhardware.com/DIN546-Slotted-Round-Head-Lock-Nut.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Nuts › Nylon-Insert & All-Metal Lock Nuts](https://engineeringhardware.com/fastener-products/nuts/nylon-insert-all-metal-lock-nuts/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/din546-slotted-round-head-lock-nut.md) Model no. **DIN546** US$0.72 – 1.44 / kilogram MOQ 1 kilogram · Final price confirmed in your quote - **Material:** Carbon Steel - **Head Style:** Round - **Standard:** DIN, GB - **Grade:** 4/6/8/10 - **Thread:** Coarse/ Fine - **SIZE:** M1-M20 - **SIZE:** 1/8" 1/4" 5/16" 3/8" 7/16" 1/2" 5/8" 3/4" 7/8" 1" 1-1/4" 1-1/2" 1-3/4" 2" 3" 4" - **FINISH:** PLAIN, ZP, YZP, HDG, Dacromet, Black Oxide ,Cr3+ , Mechanical Galvanizing, Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20DIN546%20Slotted%20Round%20Head%20Lock%20Nut%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fdin546-slotted-round-head-lock-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 | Round Head | | Model NO. | DIN546 | | Connection | Common Bolt | | Head Style | Round | | Standard | DIN, GB | | Grade | 4/6/8/10 | | Thread | Coarse/ Fine | | Transport Package | We Can Follow Customer's Request | | Specification | We Can Follow Customer's Request | | Origin | Handan City | | HS Code | 731816 | | Production Capacity | 50000000 | | ITEM NAME | DIN546 Slotted Round Head Lock Nut | | SIZE | M1-M20 | | SIZE | 1/8" 1/4" 5/16" 3/8" 7/16" 1/2" 5/8" 3/4" 7/8" 1" 1-1/4" 1-1/2" 1-3/4" 2" 3" 4" | | FINISH | PLAIN, ZP, YZP, HDG, Dacromet, Black Oxide ,Cr3+ , Mechanical Galvanizing, | | Core Products | - Nuts and bolts of various specifications | | Our products adhere to international standards, including | - DIN(German Standard) | | PACKAGE | 25kgs Box with Pallet, 25kgs woven bags, 25 kgs Gunny bags , or we can follow customer's request | | Category | [Nylon-Insert & All-Metal Lock Nuts](https://engineeringhardware.com/fastener-products/nuts/nylon-insert-all-metal-lock-nuts/) | ## Technical parameters | ITEM NAME: | DIN546 Slotted Round Head Lock Nut | | --- | --- | | MATERIAL: | Carbon steel SAE1008 / C1010 / C1020 / 10B21 / 20MnTib / 40Cr / 35Croma / Q355 etc. | | STANDARD: | GB / DIN / ASME/ANSI / BSW | | GRADE: | Gr4 / Gr6 / Gr8 / Gr10 / Gr12 / Class2 / Class5 / Class8 / 2H Heavy Nut | | SIZE : | M1-M20 | | SIZE: | 1/8" 1/4" 5/16" 3/8" 7/16" 1/2" 5/8" 3/4" 7/8" 1" 1-1/4" 1-1/2" 1-3/4" 2" 3" 4" | | FINISH : | PLAIN, ZP, YZP, HDG, Dacromet, Black Oxide ,Cr3+ , Mechanical Galvanizing, | ## Description DIN546 Slotted Round Head Lock Nut is part of our nylon-insert & all-metal lock nuts range (Nuts). ### Key details - **Type:** Round Head - **Standard:** DIN, GB - **Material:** Carbon Steel - **Grade:** 4/6/8/10 - **SIZE:** M1-M20 - **Thread:** Coarse/ Fine - **Head Style:** Round - **FINISH:** PLAIN, ZP, YZP, HDG, Dacromet, Black Oxide ,Cr3+ , Mechanical Galvanizing, Available configurations include material, head style, standard, grade and thread. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 1 kilogram at US$0.72 – 1.44 per kilogram. 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 DIN546 Slotted Round Head Lock Nut? The listed minimum order is 1 kilogram, at US$0.72 – 1.44 per kilogram. 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 DIN546 Slotted Round Head Lock Nut? Type: Round Head; Standard: DIN, GB; Material: Carbon Steel; Grade: 4/6/8/10; SIZE: M1-M20; Thread: Coarse/ Fine. 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 thread. 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 nylon-insert & all-metal lock nuts are available? The Nylon-Insert & All-Metal Lock Nuts category lists 2,493 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/nuts/nylon-insert-all-metal-lock-nuts/](https://engineeringhardware.com/fastener-products/nuts/nylon-insert-all-metal-lock-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 & 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custom quote →](https://engineeringhardware.com/contact/) ## Request a quote for this product ## Related products [All Nylon-Insert & All-Metal Lock Nuts →](https://engineeringhardware.com/fastener-products/nuts/nylon-insert-all-metal-lock-nuts/) [![Custom Size DIN985 Nylon Locking Nut, Stainless Steel / Carbon Steel Self Lock Nut Supplier](https://img.engineeringhardware.com/Custom-Size-DIN985-Nylon-Locking-Nut-Stainless-Steel-Carbon-Steel-Self-Lock-Nut-Supplier.webp)](https://engineeringhardware.com/product/custom-size-din985-nylon-locking-nut-stainless-steel-carbon-steel-self-lock-nut/) Nylon-Insert & All-Metal Lock Nuts ### [Custom Size DIN985 Nylon Locking Nut, Stainless Steel / Carbon Steel Self Lock Nut Supplier](https://engineeringhardware.com/product/custom-size-din985-nylon-locking-nut-stainless-steel-carbon-steel-self-lock-nut/) Hexagon Head · DIN, ANSI, GB, JIS, GOST, BSW **US$0.0001 – 0.0012**MOQ 500 pieces [![Durable Stainless Steel Hex Nuts Metric Hexagonal Nuts, 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