--- title: "308 Self Tapping Threaded Inserts Plastic Stainless Fasteners Coil Wire Thread Inserts" description: "308 Self Tapping Threaded Inserts Plastic Stainless Fasteners Coil Wire Thread Inserts — Wire Thread & Helical Inserts. MOQ 1 piece, US$0.24 – 0.60." url: https://engineeringhardware.com/product/308-self-tapping-threaded-inserts-plastic-stainless-fasteners-coil-wire-thread/ source: Engineering Hardware & Fasteners --- # 308 Self Tapping Threaded Inserts Plastic Stainless Fasteners Coil Wire Thread Inserts [![308 Self Tapping Threaded Inserts Plastic Stainless Fasteners Coil Wire Thread Inserts](https://img.engineeringhardware.com/308-Self-Tapping-Threaded-Inserts-Plastic-Stainless-Fasteners-Coil-Wire-Thread-Inserts.webp)](https://img.engineeringhardware.com/308-Self-Tapping-Threaded-Inserts-Plastic-Stainless-Fasteners-Coil-Wire-Thread-Inserts.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Threaded Inserts & Clinch Fasteners › Wire Thread & Helical Inserts](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/wire-thread-helical-inserts/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/308-self-tapping-threaded-inserts-plastic-stainless-fasteners-coil-wire-thread.md) Model no. **Full series** | **US$0.60**1–9 pieces | **US$0.48**10–99 pieces | **US$0.36**100–999 pieces | **US$0.24**1,000+ pieces | | --- | --- | --- | --- | MOQ 1 piece · Final price confirmed in your quote - **Material:** Stainless Steel - **Surface Finishing:** Zinc Plated - **Customized:** Customized - **No need to pre-tap the thread:** It can be directly screwed into the specific hole reserved in the base material.For the damaged female thread, the same original screw can also be used, which is both economical and beautiful.For new products, it can also increase the strength of the thread. - **Repair the internal thread:** It can repair the damaged internal thread. Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20308%20Self%20Tapping%20Threaded%20Inserts%20Plastic%20Stainless%20Fasteners%20Coil%20Wire%20Thread%20Inserts%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2F308-self-tapping-threaded-inserts-plastic-stainless-fasteners-coil-wire-thread%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 | Stainless Steel | | Type | Common | | Model NO. | Full series | | Usage | Building, Machinery, Medical, Rocket, Shipping, Chemical | | Rotation Direction | Right Rotation | | Surface Finishing | Zinc Plated | | Certification | ISO, RoHS | | Customized | Customized | | Transport Package | PE Bags+Cartons+Pallets | | Specification | Package 30cm x 26cm x 18cm | | Origin | China | | HS Code | 7318190000 | | Production Capacity | 3000000 Pieces/Day | | No need to pre-tap the thread | It can be directly screwed into the specific hole reserved in the base material.For the damaged female thread, the same original screw can also be used, which is both economical and beautiful.For new products, it can also increase the strength of the thread. | | Repair the internal thread | It can repair the damaged internal thread. | | Wide application | It has been widely used in industries such as the automotive industry, rail vehicle industry, shipbuilding industry, home appliances, construction machinery, office machines, electronic products, engineering plastics, and advanced modular furniture. | | IS0 9001 | 2015: SGS;ROSH | | Category | [Wire Thread & Helical Inserts](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/wire-thread-helical-inserts/) | ## Technical parameters | Product name | Stainless steel 302/307/308 style self tapping threaded inserts | | | --- | --- | --- | | Material | Stainless steel bars ,Customer designed | | | | Yellow color surface. | | | Surface treatment | Cadmium plated; | | | | Silver plated | | | | Tin plated, | | | | Dry film lubrication treatment. | | | | According to customer requirements | | | Products number | Metric size | M1.4~M60 | | | Inch size | 1-64~11/2"-6 | | | | 4-48~11/2"-12 | | Standard type | MS21209/Din8140/other | | | Threaded size | Metric Inc UNC, UNF | | | Length | 1D.1.5D.2D.2.5D.3D | | | Certificate | IS0 9001:2015: SGS;ROSH | | | Function | Connection, Fastening and assemble | | | Reliability test | Mechanical test hardness test Salt sprav endurance test | | | Range of application | Electronic computers, plastic products, cabinet, Sheet metal, Mining, chemical.Medical devices | | | Delivery time | Usually within 3-5 days if we have materials in stock. | | ## Description 308 Self Tapping Threaded Inserts Plastic Stainless Fasteners Coil Wire Thread Inserts is part of our wire thread & helical inserts range (Threaded Inserts & Clinch Fasteners). ### Key details - **Type:** Common - **Material:** Stainless Steel - **Certification:** ISO, RoHS - **Usage:** Building, Machinery, Medical, Rocket, Shipping, Chemical - **Rotation Direction:** Right Rotation - **Surface Finishing:** Zinc Plated - **Repair the internal thread:** It can repair the damaged internal thread. - **IS0 9001:** 2015: SGS;ROSH Available configurations include material, surface finishing, customized, no need to pre-tap the thread and repair the internal thread. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 1 piece at US$0.24 – 0.60 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 308 Self Tapping Threaded Inserts Plastic Stainless Fasteners Coil Wire Thread Inserts? The listed minimum order is 1 piece, at US$0.24 – 0.60 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$0.60 for 1–9 pieces; US$0.48 for 10–99 pieces; US$0.36 for 100–999 pieces; US$0.24 for 1,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of 308 Self Tapping Threaded Inserts Plastic Stainless Fasteners Coil Wire Thread Inserts? Type: Common; Material: Stainless Steel; Certification: ISO, RoHS; Usage: Building, Machinery, Medical, Rocket, Shipping, Chemical; Rotation Direction: Right Rotation; Surface Finishing: Zinc Plated. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include material, surface finishing, customized, no need to pre-tap the thread and repair the internal thread. 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 wire thread & helical inserts are available? The Wire Thread & Helical Inserts category lists 187 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/wire-thread-helical-inserts/](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/wire-thread-helical-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 Wire Thread & Helical Inserts →](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/wire-thread-helical-inserts/) [![Stainless Steel Screw-Lock Tailless Wire Thread Insert Threaded Sleeve](https://img.engineeringhardware.com/Stainless-Steel-Screw-Lock-Tailless-Wire-Thread-Insert-Threaded-Sleeve.webp)](https://engineeringhardware.com/product/stainless-steel-screw-lock-tailless-wire-thread-insert-threaded-sleeve/) Wire Thread & Helical Inserts ### [Stainless Steel Screw-Lock Tailless Wire Thread Insert Threaded Sleeve](https://engineeringhardware.com/product/stainless-steel-screw-lock-tailless-wire-thread-insert-threaded-sleeve/) Common · Stainless Steel **US$0.48 – 0.84**MOQ 1 piece [![Wire 1/4-20 Threaded Inserts 304 316 Stainless Steel Wire Thread 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thread inserts **US$0.012 – 0.072**MOQ 1,000 pieces [![Wire Thread Inserts M5 X 0.8 316 Stainless Steel](https://img.engineeringhardware.com/Wire-Thread-Inserts-M5-X-0-8-316-Stainless-Steel.webp)](https://engineeringhardware.com/product/wire-thread-inserts-m5-x-0-8-316-stainless-steel/) Wire Thread & Helical Inserts ### [Wire Thread Inserts M5 X 0.8 316 Stainless Steel](https://engineeringhardware.com/product/wire-thread-inserts-m5-x-0-8-316-stainless-steel/) Threaded Insert Kit · as Client Need **US$0.036 – 0.36**MOQ 10,000 pieces [![7/16-14 5/16-18 Screw Locking Free Running Wire Thread Insert Self Locking Metric](https://img.engineeringhardware.com/7-16-14-5-16-18-Screw-Locking-Free-Running-Wire-Thread-Insert-Self-Locking-Metric.webp)](https://engineeringhardware.com/product/7-16-14-5-16-18-screw-locking-free-running-wire-thread-insert-self-locking-metric/) Wire Thread & Helical Inserts ### [7/16-14 5/16-18 Screw Locking Free Running Wire Thread Insert Self Locking Metric](https://engineeringhardware.com/product/7-16-14-5-16-18-screw-locking-free-running-wire-thread-insert-self-locking-metric/) Common · Stainless Steel **US$0.06 – 0.18**MOQ 1 piece **US$0.24 – 0.60**MOQ 1 pieceGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20308%20Self%20Tapping%20Threaded%20Inserts%20Plastic%20Stainless%20Fasteners%20Coil%20Wire%20Thread%20Inserts%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2F308-self-tapping-threaded-inserts-plastic-stainless-fasteners-coil-wire-thread%2F)