--- title: "Tangless Helical Coil Thread Insert Thread Protection for Machinery" description: "Tangless Helical Coil Thread Insert Thread Protection for Machinery — Wire Thread & Helical Inserts. MOQ 500 pieces, US$0.22 – 0.24." url: https://engineeringhardware.com/product/tangless-helical-coil-thread-insert-thread-protection-for-machinery/ source: Engineering Hardware & Fasteners --- # Tangless Helical Coil Thread Insert Thread Protection for Machinery [![Tangless Helical Coil Thread Insert Thread Protection for Machinery](https://img.engineeringhardware.com/Tangless-Helical-Coil-Thread-Insert-Thread-Protection-for-Machinery.webp)](https://img.engineeringhardware.com/Tangless-Helical-Coil-Thread-Insert-Thread-Protection-for-Machinery.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/tangless-helical-coil-thread-insert-thread-protection-for-machinery.md) Model no. **ST4*1.5D** | **US$0.24**500–999 pieces | **US$0.22**1,000+ pieces | | --- | --- | MOQ 500 pieces · Final price confirmed in your quote - **Surface Finishing:** Standard Size - **Customized:** According to The Drawing - **Package Size:** 1.00cm * 1.00cm * 1.00cm - **Material:** Stainless 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%20Tangless%20Helical%20Coil%20Thread%20Insert%20Thread%20Protection%20for%20Machinery%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Ftangless-helical-coil-thread-insert-thread-protection-for-machinery%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. | ST4*1.5D | | --- | --- | | Usage | Building, Machinery | | Rotation Direction | Standard Size | | Surface Finishing | Standard Size | | Certification | ISO, RoHS | | Customized | According to The Drawing | | Course | Wrapping | | Name | No Tail Insert | | Field | Building | | MOQ | 100PCS | | Transport Package | Carton Packaging | | Specification | ST5*0.8*2D | | Origin | China | | HS Code | 7318190000 | | Production Capacity | 50000pieces | | Package Size | 1.00cm * 1.00cm * 1.00cm | | Package Gross Weight | 1.000kg | | Customization | Available | | Material | Stainless Steel | | Type | Standard Size | | Shipping Cost | Contact the supplier about freight and estimated delivery time. | | Category | [Wire Thread & Helical Inserts](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/wire-thread-helical-inserts/) | ## Technical parameters | Material | Stainless Steel | | --- | --- | | Type | brand new | | Place of Origin | China | | | Henan | | Model Number | 5*0.8*1d | | Processing customization | It can be customized according to requirements | ## Description Tangless Helical Coil Thread Insert Thread Protection for Machinery is part of our wire thread & helical inserts range (Threaded Inserts & Clinch Fasteners). ### Key details - **Type:** Standard Size - **Material:** Stainless Steel - **Certification:** ISO, RoHS - **Usage:** Building, Machinery - **Rotation Direction:** Standard Size - **Surface Finishing:** Standard Size - **Course:** Wrapping - **Name:** No Tail Insert Available configurations include surface finishing, customized, 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 500 pieces at US$0.22 – 0.24 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 Tangless Helical Coil Thread Insert Thread Protection for Machinery? The listed minimum order is 500 pieces, at US$0.22 – 0.24 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$0.24 for 500–999 pieces; US$0.22 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 Tangless Helical Coil Thread Insert Thread Protection for Machinery? Type: Standard Size; Material: Stainless Steel; Certification: ISO, RoHS; Usage: Building, Machinery; Rotation Direction: Standard Size; Surface Finishing: Standard Size. 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, 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 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/) [![304 Stainless Steel St4*0.7 Spark Plug Repair Wire Thread Insert](https://img.engineeringhardware.com/304-Stainless-Steel-St4-0-7-Spark-Plug-Repair-Wire-Thread-Insert.webp)](https://engineeringhardware.com/product/304-stainless-steel-st4-0-7-spark-plug-repair-wire-thread-insert/) Wire Thread & Helical Inserts ### [304 Stainless Steel St4*0.7 Spark Plug Repair Wire Thread Insert](https://engineeringhardware.com/product/304-stainless-steel-st4-0-7-spark-plug-repair-wire-thread-insert/) Common · Stainless Steel **US$0.048**MOQ 999 pieces [![St2.5*2D Tailless Wire Thread Insert for Plastic Wood and Composite 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Free Running Inserts · Stainless Steel **US$0.24 – 12.00**MOQ 500 pieces [![Stainless Steel DIN 8140 Helical Inserts M1.6-M30 Wire Thread Insert](https://img.engineeringhardware.com/Stainless-Steel-DIN-8140-Helical-Inserts-M1-6-M30-Wire-Thread-Insert.webp)](https://engineeringhardware.com/product/stainless-steel-din-8140-helical-inserts-m1-6-m30-wire-thread-insert/) Wire Thread & Helical Inserts ### [Stainless Steel DIN 8140 Helical Inserts M1.6-M30 Wire Thread Insert](https://engineeringhardware.com/product/stainless-steel-din-8140-helical-inserts-m1-6-m30-wire-thread-insert/) Common · Stainless Steel **US$0.096 – 0.12**MOQ 100 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 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