--- title: "Zinc Plated K Lock Nut with External Serrated Locking Teeth" description: "Zinc Plated K Lock Nut with External Serrated Locking Teeth — Nylon-Insert & All-Metal Lock Nuts. MOQ 1,000 pieces, US$0.012 – 0.096." url: https://engineeringhardware.com/product/zinc-plated-k-lock-nut-with-external-serrated-locking-teeth/ source: Engineering Hardware & Fasteners --- # Zinc Plated K Lock Nut with External Serrated Locking Teeth [![Zinc Plated K Lock Nut with External Serrated Locking Teeth](https://img.engineeringhardware.com/Zinc-Plated-K-Lock-Nut-with-External-Serrated-Locking-Teeth.webp)](https://img.engineeringhardware.com/Zinc-Plated-K-Lock-Nut-with-External-Serrated-Locking-Teeth.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/zinc-plated-k-lock-nut-with-external-serrated-locking-teeth.md) Model no. **K-Lock nut** | **US$0.096**1,000–4,999 pieces | **US$0.06**5,000–19,999 pieces | **US$0.036**20,000–49,999 pieces | **US$0.012**50,000+ pieces | | --- | --- | --- | --- | MOQ 1,000 pieces · Final price confirmed in your quote - **Material:** Carbon Steel,Stainless Steel,Alloy Steel etc - **Head Style:** Hexagonal - **Standard:** DIN, ANSI, GB - **Grade:** Class 4.8 & 6.8 - **Package Size:** 28.00cm * 20.00cm * 20.00cm Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Zinc%20Plated%20K%20Lock%20Nut%20with%20External%20Serrated%20Locking%20Teeth%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fzinc-plated-k-lock-nut-with-external-serrated-locking-teeth%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,Stainless Steel,Alloy Steel etc | | Type | Hexagon Head | | Model NO. | K-Lock nut | | Connection | Common Bolt | | Head Style | Hexagonal | | Standard | DIN, ANSI, GB | | Grade | Class 4.8 & 6.8 | | MOQ | 1000PCS | | Manufacture Processing | CNC Machining | | Experience | for 20 Years | | Quality Control | 100% QC Test | | Delivery Time | 10-15 Days | | Sample | Sample Avaliable | | Drawings | Accept | | Delivery Method | by Sea, by Air or by Express Service | | Transport Package | Plastic Bag/Boxes and Cartons/Pallets/Customized | | Specification | M3-M72 | | Origin | China | | HS Code | 7318159001 | | Production Capacity | 10000000PCS/Month | | Package Size | 28.00cm * 20.00cm * 20.00cm | | Package Gross Weight | 16.000kg | | Lead Time | 10 days (1 - 1000 Pieces) To be negotiated ( > 1000 Pieces) | | Category | [Nylon-Insert & All-Metal Lock Nuts](https://engineeringhardware.com/fastener-products/nuts/nylon-insert-all-metal-lock-nuts/) | ## Technical parameters | Material | 1.StainlessSteel:SS201,SS303,SS304,SS316,SS410,SS4202.Steel:C45(K1045), C46(K1046),C203.Carbon Steel: 1010,1035,1045 | | --- | --- | | Grade | SAE J429 Gr.2, 5,8; ASTM A307Gr.A,A193 B7,B8,B8M,A194 2H, Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9 and etc. | | Finish | Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G and etc. | | Connection | Common Nut | | Standard | ISO, DIN, ANSI, JIS, BS and Non-standard | | Sample Service | Samples are all in free. | | Certificate | ISO9001,CE, SGS, BV | | Packing | Bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand | | Payment terms | FOB, CIF, CFR, L/C, or others. | | Delivery method | by sea, by air or by express service | | Application | Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating and etc. | ## Description Zinc Plated K Lock Nut with External Serrated Locking Teeth is part of our nylon-insert & all-metal lock nuts range (Nuts). ### Key details - **Type:** Hexagon Head - **Standard:** DIN, ANSI, GB - **Material:** Carbon Steel,Stainless Steel,Alloy Steel etc - **Grade:** Class 4.8 & 6.8 - **Head Style:** Hexagonal - **Connection:** Common Bolt - **Manufacture Processing:** CNC Machining - **Experience:** for 20 Years Available configurations include material, head style, standard, grade and package size. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 1,000 pieces at US$0.012 – 0.096 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 Zinc Plated K Lock Nut with External Serrated Locking Teeth? The listed minimum order is 1,000 pieces, at US$0.012 – 0.096 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$0.096 for 1,000–4,999 pieces; US$0.06 for 5,000–19,999 pieces; US$0.036 for 20,000–49,999 pieces; US$0.012 for 50,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of Zinc Plated K Lock Nut with External Serrated Locking Teeth? Type: Hexagon Head; Standard: DIN, ANSI, GB; Material: Carbon Steel,Stainless Steel,Alloy Steel etc; Grade: Class 4.8 & 6.8; 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, grade and package size. 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/) [![Stainless Steel Hex Nut / Square Nut / Flange Nut / Nylon Lock Nut](https://img.engineeringhardware.com/Stainless-Steel-Hex-Nut-Square-Nut-Flange-Nut-Nylon-Lock-Nut.webp)](https://engineeringhardware.com/product/stainless-steel-hex-nut-square-nut-flange-nut-nylon-lock-nut/) Nylon-Insert & All-Metal Lock Nuts ### [Stainless Steel Hex Nut / Square Nut / Flange Nut / Nylon Lock Nut](https://engineeringhardware.com/product/stainless-steel-hex-nut-square-nut-flange-nut-nylon-lock-nut/) DIN, ASTM, GOST · Aluminum **US$1.20 – 2.40**MOQ 10 pieces [![Carbon Steel HDG Nyloc Nut/Stainless Steel DIN985 Hex Nylon Lock Nuts for 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