--- title: "Heat-Resistant Spark Plug Threaded Inserts for Industrial Engines" description: "Heat-Resistant Spark Plug Threaded Inserts for Industrial Engines — Thread Repair & Solid Threaded Inserts. MOQ 100 pieces, US$0.12 – 0.72." url: https://engineeringhardware.com/product/heat-resistant-spark-plug-threaded-inserts-for-industrial-engines/ source: Engineering Hardware & Fasteners --- # Heat-Resistant Spark Plug Threaded Inserts for Industrial Engines [![Heat-Resistant Spark Plug Threaded Inserts for Industrial Engines](https://img.engineeringhardware.com/Heat-Resistant-Spark-Plug-Threaded-Inserts-for-Industrial-Engines.webp)](https://img.engineeringhardware.com/Heat-Resistant-Spark-Plug-Threaded-Inserts-for-Industrial-Engines.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/heat-resistant-spark-plug-threaded-inserts-for-industrial-engines.md) Model no. **M8** | **US$0.72**100–999 pieces | **US$0.48**1,000–9,999 pieces | **US$0.12**10,000+ pieces | | --- | --- | --- | MOQ 100 pieces · Final price confirmed in your quote - **Surface Finishing:** Standard - **Customized:** Customized - **Size:** as Design - **Package Size:** 10.00cm * 10.00cm * 10.00cm - **Material:** Carbon Steel Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Heat-Resistant%20Spark%20Plug%20Threaded%20Inserts%20for%20Industrial%20Engines%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fheat-resistant-spark-plug-threaded-inserts-for-industrial-engines%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. | M8 | | --- | --- | | Usage | Building, Machinery, Medical | | Rotation Direction | Standard | | Surface Finishing | Standard | | Certification | ISO, RoHS | | Customized | Customized | | MOQ | 100 PCS | | Name | Spark Plug Thread Sleeve | | Size | as Design | | Quality | 100% Tested | | Transport Package | Carton Box | | Specification | M12 x 1.0 | | Origin | China | | HS Code | 7318190000 | | Production Capacity | 50000pieces | | Package Size | 10.00cm * 10.00cm * 10.00cm | | Package Gross Weight | 1.000kg | | Customization | Available | | Material | Carbon Steel | | Type | Common | | Shipping Cost | Contact the supplier about freight and estimated delivery time. | | Accepted Delivery Terms | FOB,EXW,Express Delivery; | | Accepted Payment Currency | USD; | | Accepted Payment Type | T/T,L/C,MoneyGram,Western Union; | | Language Spoken | English,Chinese | | Category | [Thread Repair & Solid Threaded Inserts](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/thread-repair-solid-threaded-inserts/) | ## Technical parameters | Name | Spark plug insert | specification | M12*1.25 M14*1.25 | | --- | --- | --- | --- | | material | Stainless steel, nickel-plated steel | Application | Repair fasteners for spark plug threaded holes in engine cylinder heads. | ## Description Heat-Resistant Spark Plug Threaded Inserts for Industrial Engines is part of our thread repair & solid threaded inserts range (Threaded Inserts & Clinch Fasteners). ### Key details - **Type:** Common - **Material:** Carbon Steel - **Size:** as Design - **Certification:** ISO, RoHS - **Usage:** Building, Machinery, Medical - **Rotation Direction:** Standard - **Surface Finishing:** Standard - **Name:** Spark Plug Thread Sleeve Available configurations include surface finishing, customized, size, package size and material. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 100 pieces at US$0.12 – 0.72 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 Heat-Resistant Spark Plug Threaded Inserts for Industrial Engines? The listed minimum order is 100 pieces, at US$0.12 – 0.72 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$0.72 for 100–999 pieces; US$0.48 for 1,000–9,999 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 Heat-Resistant Spark Plug Threaded Inserts for Industrial Engines? Type: Common; Material: Carbon Steel; Size: as Design; Certification: ISO, RoHS; Usage: Building, Machinery, Medical; Rotation Direction: Standard. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include surface finishing, customized, size, package size and material. 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/) [![China Customized Fastener Zinc Plated Hexagon Flange Nut Nylon Lock Nut stainless Steel Thread Insert Nut](https://img.engineeringhardware.com/China-Customized-Fastener-Zinc-Plated-Hexagon-Flange-Nut-Nylon-Lock-Nut-stainless-Steel-Thread-Insert-Nut.webp)](https://engineeringhardware.com/product/china-customized-fastener-zinc-plated-hexagon-flange-nut-nylon-lock-nut-stainless/) Thread Repair & Solid Threaded Inserts ### [China Customized Fastener Zinc Plated Hexagon Flange Nut Nylon Lock Nut stainless Steel Thread Insert Nut](https://engineeringhardware.com/product/china-customized-fastener-zinc-plated-hexagon-flange-nut-nylon-lock-nut-stainless/) Hexagon Head · Stainless Steel **US$0.036 – 0.096**MOQ 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Insert](https://engineeringhardware.com/product/carbon-steel-screw-coiled-wire-threaded-inserts-spark-plug-thread-repair-insert/) DIN, ANSI, GB, JIS, BSW · Carbon Steel **US$0.06 – 0.12**MOQ 1 piece [![Metric Thread Repair Kit Thread Insert M10 X 1.5 Threaded Insert Wholesale Thread Repair Kit Thread Repair Insert Kit](https://img.engineeringhardware.com/Metric-Thread-Repair-Kit-Thread-Insert-M10-X-1-5-Threaded-Insert-Wholesale-Thread-Repair-Kit-Thread-Repair-Insert-Kit.webp)](https://engineeringhardware.com/product/metric-thread-repair-kit-thread-insert-m10-x-1-5-threaded-insert-wholesale-thread/) Thread Repair & Solid Threaded Inserts ### [Metric Thread Repair Kit Thread Insert M10 X 1.5 Threaded Insert Wholesale Thread Repair Kit Thread Repair Insert Kit](https://engineeringhardware.com/product/metric-thread-repair-kit-thread-insert-m10-x-1-5-threaded-insert-wholesale-thread/) Metric Thread Repair Kit · Standard **US$5.70 – 5.99**MOQ 300 sets **US$0.12 – 0.72**MOQ 100 piecesGet a 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