--- title: "Threaded Insert for Plastic -Straight – Flush – 1/4-28" description: "Threaded Insert for Plastic -Straight – Flush – 1/4-28 — Thread Repair & Solid Threaded Inserts. MOQ 500 pieces, US$0.06." url: https://engineeringhardware.com/product/threaded-insert-for-plastic-straight-flush-1-4-28/ source: Engineering Hardware & Fasteners --- # Threaded Insert for Plastic -Straight – Flush – 1/4-28 [![Threaded Insert for Plastic -Straight – Flush – 1/4-28](https://img.engineeringhardware.com/Threaded-Insert-for-Plastic-Straight-Flush-1-4-28.webp)](https://img.engineeringhardware.com/Threaded-Insert-for-Plastic-Straight-Flush-1-4-28.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/threaded-insert-for-plastic-straight-flush-1-4-28.md) Model no. **QT** US$0.06 / piece MOQ 500 pieces · Final price confirmed in your quote - **Material:** Brass - **Head Style:** Round - **Standard:** DIN, GB, JIS, GOST, BSW - **Grade:** 8.8 - **Base Material:** Thermoset, Plastics, Thermoplastics, Rubber - **Thread:** Inch, Metric - **Model Type:** M2~M8 - **Screw heading & rolling:** Metric 0.8-M6,Unified Imperial#0-1/4'' Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Threaded%20Insert%20for%20Plastic%20-Straight%20%26%238211%3B%20Flush%20%26%238211%3B%201%2F4-28%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fthreaded-insert-for-plastic-straight-flush-1-4-28%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 | Brass | | Type | Round Head | | Model NO. | QT | | Connection | Common Bolt | | Head Style | Round | | Standard | DIN, GB, JIS, GOST, BSW | | Grade | 8.8 | | Base Material | Thermoset, Plastics, Thermoplastics, Rubber | | Instatllation | Ultrasonic, Heat, Thermal, Press-in | | Thread | Inch, Metric | | Model Type | M2~M8 | | Product Quality | Warrenty | | OEM Service | Offered | | MOQ | Negotible | | Technic | Turing, Milling, Cold Heading, Forged | | Transport Package | PE Bag +Carton | | Specification | QT | | Origin | Shenzhen, Guangdong | | HS Code | 7318160000 | | Production Capacity | 500, 000PCS/Week | | ISO9001 | 2008 | | Auto-lathe turning | ODΦ0.5-20mm,Tol.±0.01mm | | CNC lathe turning | ODΦ0.5-250mm,Tol.±0.005mm | | CNC Milling | 800x600mm(LxW),Tol.±0.05mm | | Grinding | Tol.±0.002mm | | Screw heading & rolling | Metric 0.8-M6,Unified Imperial#0-1/4'' | | Stamping | 200T max | | Category | [Thread Repair & Solid Threaded Inserts](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/thread-repair-solid-threaded-inserts/) | ## Technical parameters | Material | Aluminum alloy,Brass,Stainless Steel,Carbon steel,according to customer's requirement | | --- | --- | | Finish | Milled /Tin plating, copper-plating,hot-dip galvanizing, black oxide coating,red anodized,black anodized,painting, powdering,rust preventive oil, titanium alloy galvanized, silver plating, plastic, electroplating, anodizing etc. | | Testing Equipment | CMM,Projector,Pull Tester,Automatic Optic Inspector,Projecting apparatus Salt Spray Test, Durometer, and Coating Analyzer,Tensile Machine | | Management System | ISO9001:2008 | | Certification | SGS,RoHS,Material Certication,PPAP | | Production Capability | Auto-lathe turning:ODΦ0.5-20mm,Tol.±0.01mm | | CNC lathe turning:ODΦ0.5-250mm,Tol.±0.005mm | | | CNC Milling:800x600mm(LxW),Tol.±0.05mm | | | Grinding:Tol.±0.002mm | | | Screw heading & rolling:Metric 0.8-M6,Unified Imperial#0-1/4'' | | | Stamping:200T max | | | Lead Time | 5-15 working days | | Samples | Welcome | | Delivery term | By DHL,UPS,TNT,FedEx,EMS,By Ocean,By Air | | Warranty | Replacement at all our cost for rejected products | ## Description Threaded Insert for Plastic -Straight – Flush – 1/4-28 is part of our thread repair & solid threaded inserts range (Threaded Inserts & Clinch Fasteners). ### Key details - **Type:** Round Head - **Standard:** DIN, GB, JIS, GOST, BSW - **Material:** Brass - **Grade:** 8.8 - **Thread:** Inch, Metric - **Head Style:** Round - **Connection:** Common Bolt - **Base Material:** Thermoset, Plastics, Thermoplastics, Rubber Available configurations include material, head style, standard, grade and base 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$0.06 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 Threaded Insert for Plastic -Straight – Flush – 1/4-28? The listed minimum order is 500 pieces, at US$0.06 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 Threaded Insert for Plastic -Straight – Flush – 1/4-28? Type: Round Head; Standard: DIN, GB, JIS, GOST, BSW; Material: Brass; Grade: 8.8; Thread: Inch, Metric; 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 base 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/) [![OEM Standard Carbon Steel Zinc Plated Inner and Outer Thread Wood Insert Nut for Furniture Assembly](https://img.engineeringhardware.com/OEM-Standard-Carbon-Steel-Zinc-Plated-Inner-and-Outer-Thread-Wood-Insert-Nut-for-Furniture-Assembly.webp)](https://engineeringhardware.com/product/oem-standard-carbon-steel-zinc-plated-inner-and-outer-thread-wood-insert-nut-for/) Thread Repair & Solid Threaded Inserts ### [OEM Standard Carbon Steel Zinc Plated Inner and Outer Thread Wood Insert Nut for Furniture Assembly](https://engineeringhardware.com/product/oem-standard-carbon-steel-zinc-plated-inner-and-outer-thread-wood-insert-nut-for/) Countersunk Head · DIN, ANSI, GB, JIS, BSW **US$0.036 – 0.36**MOQ 10,000 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Hardware Flange Insert Female Thread](https://img.engineeringhardware.com/M12X40X2-5mm-Brad-Hole-Tee-Nut-Carbon-Steel-T-Nuts-Furniture-Hardware-Flange-Insert-Female-Thread.webp)](https://engineeringhardware.com/product/m12x40x2-5mm-brad-hole-tee-nut-carbon-steel-t-nuts-furniture-hardware-flange-insert/) Thread Repair & Solid Threaded Inserts ### [M12X40X2.5mm Brad Hole Tee Nut Carbon Steel T-Nuts Furniture Hardware Flange Insert Female Thread](https://engineeringhardware.com/product/m12x40x2-5mm-brad-hole-tee-nut-carbon-steel-t-nuts-furniture-hardware-flange-insert/) T Head · DIN, ANSI, GB, JIS, GOST, BSW **US$0.012 – 0.036**MOQ 10,000 pieces **US$0.06**MOQ 500 piecesGet a 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