--- title: "Self Locking Keyed Style Keylocking Threaded Insert for Metal Hardware Repair M3 M6 M8" description: "Self Locking Keyed Style Keylocking Threaded Insert for Metal Hardware Repair M3 M6 M8 — Thread Repair & Solid Threaded Inserts." url: https://engineeringhardware.com/product/self-locking-keyed-style-keylocking-threaded-insert-for-metal-hardware-repair-m3-m6/ source: Engineering Hardware & Fasteners --- # Self Locking Keyed Style Keylocking Threaded Insert for Metal Hardware Repair M3 M6 M8 [![Self Locking Keyed Style Keylocking Threaded Insert for Metal Hardware Repair M3 M6 M8](https://img.engineeringhardware.com/Self-Locking-Keyed-Style-Keylocking-Threaded-Insert-for-Metal-Hardware-Repair-M3-M6-M8.webp)](https://img.engineeringhardware.com/Self-Locking-Keyed-Style-Keylocking-Threaded-Insert-for-Metal-Hardware-Repair-M3-M6-M8.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Threaded Inserts & Clinch Fasteners › Thread Repair & Solid Threaded Inserts](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/thread-repair-solid-threaded-inserts/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/self-locking-keyed-style-keylocking-threaded-insert-for-metal-hardware-repair-m3-m6.md) Model no. **L508** | **US$0.12**2,000–9,999 pieces | **US$0.096**10,000–999,999 pieces | **US$0.09**1,000,000+ pieces | | --- | --- | --- | MOQ 2,000 pieces · Final price confirmed in your quote - **Material:** Stainless Steel, Steel, Aluminum, Carbon Steel - **Size:** Metric, Unified - **Standard:** DIN,ASTM/ANSI JIS EN ISO,AS,GB - **Steel Grade:** DIN: Gr.4,5,6,8.8,10,; SAE: Gr.2,5,8; ASTM: A563 Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Self%20Locking%20Keyed%20Style%20Keylocking%20Threaded%20Insert%20for%20Metal%20Hardware%20Repair%20M3%20M6%20M8%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fself-locking-keyed-style-keylocking-threaded-insert-for-metal-hardware-repair-m3-m6%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 | Model NO. | L508 | | --- | --- | | Application | Machinery, Chemical Industry, Environmental, etc | | OEM | Available | | Material | Stainless Steel, Steel, Aluminum, Carbon Steel | | Transport Package | PE+Carton | | Specification | M2 M3 M4 M5 M6 | | Origin | Shenzhen China | | Production Capacity | 1000000000 | | Customization | Available | | Type | Threaded Inserts | | Size | Metric, Unified | | Standard | DIN,ASTM/ANSI JIS EN ISO,AS,GB | | Stainless Steel | SS201, SS303, SS304, SS316,SS316L,SS904L ,F594 | | Steel Grade | DIN: Gr.4,5,6,8.8,10,; SAE: Gr.2,5,8; ASTM: A563 | | M2-M24 | Cold Froging,M24-M100 Hot Forging, | | Busy season | 15-30days,Slack seaon:10-15days | | Carbon steel | DIN934,DIN6923,DIN928,DIN929,ISO4032,Cage nut,Cap nut,etc | | For more information visit | sandum.en.made-in-china.com | | Category | [Thread Repair & Solid Threaded Inserts](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/thread-repair-solid-threaded-inserts/) | ## Technical parameters | Standard: | DIN,ASTM/ANSI JIS EN ISO,AS,GB | | --- | --- | | Material | Stainless Steel: SS201, SS303, SS304, SS316,SS316L,SS904L ,F594 | | Steel Grade: DIN: Gr.4,5,6,8.8,10,; SAE: Gr.2,5,8; ASTM: A563 | | | Finishing | Zinc(Yellow,White,Blue,Black),Hop Dip Galvanized(HDG),Black Oxide, Geomet,Dacroment,anodization,Nickel plated,Zinc-Nickel plated | | Production Process | M2-M24:Cold Froging,M24-M100 Hot Forging, Machining and CNC for Customized fastener | | Customized Products Lead time | Busy season:15-30days,Slack seaon:10-15days | | Stock Products | Carbon steel:DIN934,DIN6923,DIN928,DIN929,ISO4032,Cage nut,Cap nut,etc Stainless steel: All DIN Or GB Standard stainless steel Nut | | Free Samples for standard fastener | | | For more information visit:sandum.en.made-in-china.com | | ## Description Self Locking Keyed Style Keylocking Threaded Insert for Metal Hardware Repair M3 M6 M8 is part of our thread repair & solid threaded inserts range (Threaded Inserts & Clinch Fasteners). ### Key details - **Type:** Threaded Inserts - **Standard:** DIN,ASTM/ANSI JIS EN ISO,AS,GB - **Material:** Stainless Steel, Steel, Aluminum, Carbon Steel - **Size:** Metric, Unified - **Application:** Machinery, Chemical Industry, Environmental, etc - **OEM:** Available - **Stainless Steel:** SS201, SS303, SS304, SS316,SS316L,SS904L ,F594 - **Steel Grade:** DIN: Gr.4,5,6,8.8,10,; SAE: Gr.2,5,8; ASTM: A563 Available configurations include material, size, standard and steel grade. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 2,000 pieces at US$0.09 – 0.12 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 Self Locking Keyed Style Keylocking Threaded Insert for Metal Hardware Repair M3 M6 M8? The listed minimum order is 2,000 pieces, at US$0.09 – 0.12 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$0.12 for 2,000–9,999 pieces; US$0.096 for 10,000–999,999 pieces; US$0.09 for 1,000,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of Self Locking Keyed Style Keylocking Threaded Insert for Metal Hardware Repair M3 M6 M8? Type: Threaded Inserts; Standard: DIN,ASTM/ANSI JIS EN ISO,AS,GB; Material: Stainless Steel, Steel, Aluminum, Carbon Steel; Size: Metric, Unified; Application: Machinery, Chemical Industry, Environmental, etc; OEM: Available. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include material, size, standard and steel 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 thread repair & solid threaded inserts are available? The Thread Repair & Solid Threaded Inserts category lists 961 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/thread-repair-solid-threaded-inserts/](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/thread-repair-solid-threaded-inserts/) 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 Thread Repair & Solid Threaded Inserts →](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/thread-repair-solid-threaded-inserts/) [![Furniture Round Plastic Insert Cap Tube End Cap with Thread Nut](https://img.engineeringhardware.com/Furniture-Round-Plastic-Insert-Cap-Tube-End-Cap-with-Thread-Nut.webp)](https://engineeringhardware.com/product/furniture-round-plastic-insert-cap-tube-end-cap-with-thread-nut/) Thread Repair & Solid Threaded Inserts ### [Furniture Round Plastic Insert Cap Tube End Cap with Thread Nut](https://engineeringhardware.com/product/furniture-round-plastic-insert-cap-tube-end-cap-with-thread-nut/) Plastic · 12.7-76mm **US$0.06 – 0.22**MOQ 1,000 pieces [![5/8-11″ Unc Threaded Insert Quick Installation Galvanized Square Nuts Slip-on Lock 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