--- title: "Nylon Insert Lock Nut DIN 985 Hex Thin Self-Locking Nut M4-M20" description: "Nylon Insert Lock Nut DIN 985 Hex Thin Self-Locking Nut M4-M20 — Nylon-Insert & All-Metal Lock Nuts. MOQ 5,000 pieces, US$0.12 – 0.14." url: https://engineeringhardware.com/product/nylon-insert-lock-nut-din-985-hex-thin-self-locking-nut-m4-m20/ source: Engineering Hardware & Fasteners --- # Nylon Insert Lock Nut DIN 985 Hex Thin Self-Locking Nut M4-M20 [![Nylon Insert Lock Nut DIN 985 Hex Thin Self-Locking Nut M4-M20](https://img.engineeringhardware.com/Nylon-Insert-Lock-Nut-DIN-985-Hex-Thin-Self-Locking-Nut-M4-M20.webp)](https://img.engineeringhardware.com/Nylon-Insert-Lock-Nut-DIN-985-Hex-Thin-Self-Locking-Nut-M4-M20.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/nylon-insert-lock-nut-din-985-hex-thin-self-locking-nut-m4-m20.md) Model no. **M4-M20** | **US$0.14**5,000–9,999 pieces | **US$0.12**10,000+ pieces | | --- | --- | MOQ 5,000 pieces · Final price confirmed in your quote - **Material:** Carbon Steel - **Head Style:** Hexagonal - **Standard:** DIN - **Grade:** 4.8/8.8/10 Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Nylon%20Insert%20Lock%20Nut%20DIN%20985%20Hex%20Thin%20Self-Locking%20Nut%20M4-M20%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fnylon-insert-lock-nut-din-985-hex-thin-self-locking-nut-m4-m20%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 | | Model NO. | M4-M20 | | Connection | Common Bolt | | Head Style | Hexagonal | | Standard | DIN | | Grade | 4.8/8.8/10 | | More Other Products | Contact Customer Service | | Transport Package | Carton Packaging, Can Be Customized as Per Custome | | Specification | M4-M20 | | Origin | Hebei, China | | HS Code | 731816 | | Package Gross Weight | 20.000kg | | Category | [Nylon-Insert & All-Metal Lock Nuts](https://engineeringhardware.com/fastener-products/nuts/nylon-insert-all-metal-lock-nuts/) | ## Description Nylon Insert Lock Nut DIN 985 Hex Thin Self-Locking Nut M4-M20 is part of our nylon-insert & all-metal lock nuts range (Nuts). ### Key details - **Type:** Hexagon Head - **Standard:** DIN - **Material:** Carbon Steel - **Grade:** 4.8/8.8/10 - **Head Style:** Hexagonal - **Connection:** Common Bolt - **More Other Products:** Contact Customer Service Available configurations include material, head style, standard and grade. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 5,000 pieces at US$0.12 – 0.14 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 Nylon Insert Lock Nut DIN 985 Hex Thin Self-Locking Nut M4-M20? The listed minimum order is 5,000 pieces, at US$0.12 – 0.14 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$0.14 for 5,000–9,999 pieces; US$0.12 for 10,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of Nylon Insert Lock Nut DIN 985 Hex Thin Self-Locking Nut M4-M20? Type: Hexagon Head; Standard: DIN; Material: Carbon Steel; Grade: 4.8/8.8/10; Head Style: Hexagonal; 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 and grade. 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 & 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 Nylon-Insert & All-Metal Lock Nuts →](https://engineeringhardware.com/fastener-products/nuts/nylon-insert-all-metal-lock-nuts/) [![527554A000 Rear Hub Bolt for Hyundai Korean Car](https://img.engineeringhardware.com/527554A000-Rear-Hub-Bolt-for-Hyundai-Korean-Car.webp)](https://engineeringhardware.com/product/527554a000-rear-hub-bolt-for-hyundai-korean-car/) Nylon-Insert & All-Metal Lock Nuts ### [527554A000 Rear Hub Bolt for Hyundai Korean Car](https://engineeringhardware.com/product/527554a000-rear-hub-bolt-for-hyundai-korean-car/) Car Wheel Lock Nuts · Steel **US$2.40 – 10.80**MOQ 100 pieces [![Stainless Steel Lock Nut T Slot Aluminum Profil Nut Slide T 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Parts](https://img.engineeringhardware.com/Steel-Zinc-Lock-Nut-with-Metal-Insert-for-Auto-Parts.webp)](https://engineeringhardware.com/product/steel-zinc-lock-nut-with-metal-insert-for-auto-parts/) Nylon-Insert & All-Metal Lock Nuts ### [Steel Zinc Lock Nut with Metal Insert for Auto Parts](https://engineeringhardware.com/product/steel-zinc-lock-nut-with-metal-insert-for-auto-parts/) Hexagon Head · DIN, ANSI, JIS, GOST, BSW **US$0.012 – 0.24**MOQ 1,000 pieces **US$0.12 – 0.14**MOQ 5,000 piecesGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Nylon%20Insert%20Lock%20Nut%20DIN%20985%20Hex%20Thin%20Self-Locking%20Nut%20M4-M20%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fnylon-insert-lock-nut-din-985-hex-thin-self-locking-nut-m4-m20%2F)