--- title: "Zinc Coating Tri-Groove Security Nut Against Theft" description: "Zinc Coating Tri-Groove Security Nut Against Theft — Security & Tamper-Resistant Nuts. Material: Carbon Steel, Grade: 5.6. MOQ 1,000 pieces, US$0.078 – 0.46." url: https://engineeringhardware.com/product/zinc-coating-tri-groove-security-nut-against-theft/ source: Engineering Hardware & Fasteners --- # Zinc Coating Tri-Groove Security Nut Against Theft [![Zinc Coating Tri-Groove Security Nut Against Theft](https://img.engineeringhardware.com/Zinc-Coating-Tri-Groove-Security-Nut-Against-Theft.webp)](https://img.engineeringhardware.com/Zinc-Coating-Tri-Groove-Security-Nut-Against-Theft.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Nuts › Security & Tamper-Resistant Nuts](https://engineeringhardware.com/fastener-products/nuts/security-tamper-resistant-nuts/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/zinc-coating-tri-groove-security-nut-against-theft.md) Model no. **M12** US$0.078 – 0.46 / piece MOQ 1,000 pieces · Final price confirmed in your quote - **Material:** Carbon Steel - **Head Style:** Round - **Standard:** DIN, ANSI, GB, JIS, GOST, BSW - **Grade:** 5.6 - **Size:** M12 - **Surface Treatment:** Zinc Coating - **Packing:** Cartons 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%20Coating%20Tri-Groove%20Security%20Nut%20Against%20Theft%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fzinc-coating-tri-groove-security-nut-against-theft%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. | M12 | | Connection | Common Bolt | | Head Style | Round | | Standard | DIN, ANSI, GB, JIS, GOST, BSW | | Grade | 5.6 | | Item | Tri Groove Security Nut | | Size | M12 | | Sample | Yes | | Delivery Time | 7-10days | | Feature | Against Loosen | | Application | Outdoor Public Facilities | | Surface Treatment | Zinc Coating | | Packing | Cartons | | Transport Package | Export Cartons +Waterproof Pallets | | Specification | 35mm*26mm*20mm | | Origin | China | | HS Code | 7318160000 | | Production Capacity | 50000PCS/Month | | Category | [Security & Tamper-Resistant Nuts](https://engineeringhardware.com/fastener-products/nuts/security-tamper-resistant-nuts/) | ## Technical parameters | Item | Tri-Groove Nut , Tamper Proof Nuts ,Security nut, Anti-theft Nut , Tri-lock nut | | --- | --- | | Material | carbon steel | | Size | M10---M24 | | Finish | galvanized | | Head | cone nut | | MOQ | 1000 pcs | | Lead Time | 10-20 Working Days | | Sample | Free | | Payment | Western Union, T/T | | Shipment | By sea or DHL.Fedex etc | ## Description Zinc Coating Tri-Groove Security Nut Against Theft is part of our security & tamper-resistant nuts range (Nuts). ### Key details - **Type:** Round Head - **Standard:** DIN, ANSI, GB, JIS, GOST, BSW - **Material:** Carbon Steel - **Grade:** 5.6 - **Size:** M12 - **Head Style:** Round - **Surface Treatment:** Zinc Coating - **Connection:** Common Bolt Available configurations include material, head style, standard, grade and 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$0.078 – 0.46 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 Coating Tri-Groove Security Nut Against Theft? The listed minimum order is 1,000 pieces, at US$0.078 – 0.46 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 Zinc Coating Tri-Groove Security Nut Against Theft? Type: Round Head; Standard: DIN, ANSI, GB, JIS, GOST, BSW; Material: Carbon Steel; Grade: 5.6; Size: M12; Head Style: Round. 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 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 security & tamper-resistant nuts are available? The Security & Tamper-Resistant Nuts category lists 36 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/nuts/security-tamper-resistant-nuts/](https://engineeringhardware.com/fastener-products/nuts/security-tamper-resistant-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 Security & Tamper-Resistant Nuts →](https://engineeringhardware.com/fastener-products/nuts/security-tamper-resistant-nuts/) [![Locking Lug Nut M12 M14 Anti Theft Wheel Nut with Matching Security Key for Automotive Wheels Custom OEM](https://img.engineeringhardware.com/Locking-Lug-Nut-M12-M14-Anti-Theft-Wheel-Nut-with-Matching-Security-Key-for-Automotive-Wheels-Custom-OEM.webp)](https://engineeringhardware.com/product/locking-lug-nut-m12-m14-anti-theft-wheel-nut-with-matching-security-key-for/) Security & Tamper-Resistant Nuts ### [Locking Lug Nut M12 M14 Anti Theft Wheel Nut with Matching Security Key for Automotive Wheels Custom OEM](https://engineeringhardware.com/product/locking-lug-nut-m12-m14-anti-theft-wheel-nut-with-matching-security-key-for/) to Be Confirmed / Customizable · Custom **US$0.36 – 0.54**MOQ 1,000 pieces [![M12 Zinc Plating Tri Groove Security 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