--- title: "Premium Custom Brass Knurled Insert Nuts for M3 to M12 Sizes" description: "Premium Custom Brass Knurled Insert Nuts for M3 to M12 Sizes — Heat-Set, Knurled & Molded-In Inserts. MOQ 1,000 pieces, US$0.012 – 0.12." url: https://engineeringhardware.com/product/premium-custom-brass-knurled-insert-nuts-for-m3-to-m12-sizes/ source: Engineering Hardware & Fasteners --- # Premium Custom Brass Knurled Insert Nuts for M3 to M12 Sizes [![Premium Custom Brass Knurled Insert Nuts for M3 to M12 Sizes](https://img.engineeringhardware.com/Premium-Custom-Brass-Knurled-Insert-Nuts-for-M3-to-M12-Sizes.webp)](https://img.engineeringhardware.com/Premium-Custom-Brass-Knurled-Insert-Nuts-for-M3-to-M12-Sizes.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Threaded Inserts & Clinch Fasteners › Heat-Set, Knurled & Molded-In Inserts](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/heat-set-knurled-molded-in-inserts/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/premium-custom-brass-knurled-insert-nuts-for-m3-to-m12-sizes.md) Model no. **Insert Nut** US$0.012 – 0.12 / piece MOQ 1,000 pieces · Final price confirmed in your quote - **Grade:** 4.8/5/5.6/6.8/8.8/9.8/10.9/12.9 - **Raw Material:** C1022A - **Size:** Customized Size - **Finish:** Black, Zinc, Plain - **Color:** Yellow/White/Blue/Black/as Client Need Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Premium%20Custom%20Brass%20Knurled%20Insert%20Nuts%20for%20M3%20to%20M12%20Sizes%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fpremium-custom-brass-knurled-insert-nuts-for-m3-to-m12-sizes%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 | | --- | --- | | Grade | 4.8/5/5.6/6.8/8.8/9.8/10.9/12.9 | | Raw Material | C1022A | | Model NO. | Insert Nut | | Size | Customized Size | | Finish | Black, Zinc, Plain | | Color | Yellow/White/Blue/Black/as Client Need | | Sample | Available | | MOQ | According to Your Size | | Measurement System | Inch, Metric | | Service | OEM ODM | | Application | Machinery, Chemical Industry, Environmental, Build | | Serface | Plain | | Specification | ISO9001 | | Origin | Hebei, China | | HS Code | 7318140000 | | Production Capacity | 7000000 | | Accepted Delivery Terms | FOB,CFR,CIF,EXW,FCA,DDU,Express Delivery; | | Accepted Payment Currency | USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF; | | Language Spoken | English,Chinese,Bengalese,Korean,Japanese,Arabic,French,Russian,,Spanish, | | Category | [Heat-Set, Knurled & Molded-In Inserts](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/heat-set-knurled-molded-in-inserts/) | ## Technical parameters | Surface | Plain, Zinc Plated, Copper Plating, Phosphating, etc | | --- | --- | | Packing | According to Customers Requirement | | Logo | we can provide logo customization servic as your request | | Delivery time | Normally in 15-30 days | | Payment term | 30% TT in advance and 70% TT before shipment | ## Description Premium Custom Brass Knurled Insert Nuts for M3 to M12 Sizes is part of our heat-set, knurled & molded-in inserts range (Threaded Inserts & Clinch Fasteners). ### Key details - **Grade:** 4.8/5/5.6/6.8/8.8/9.8/10.9/12.9 - **Size:** Customized Size - **Finish:** Black, Zinc, Plain - **Application:** Machinery, Chemical Industry, Environmental, Build - **Raw Material:** C1022A - **Color:** Yellow/White/Blue/Black/as Client Need - **Measurement System:** Inch, Metric - **Service:** OEM ODM Available configurations include grade, raw material, size, finish and color. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 1,000 pieces at US$0.012 – 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 Premium Custom Brass Knurled Insert Nuts for M3 to M12 Sizes? The listed minimum order is 1,000 pieces, at US$0.012 – 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. ### What are the main specifications of Premium Custom Brass Knurled Insert Nuts for M3 to M12 Sizes? Grade: 4.8/5/5.6/6.8/8.8/9.8/10.9/12.9; Size: Customized Size; Finish: Black, Zinc, Plain; Application: Machinery, Chemical Industry, Environmental, Build; Raw Material: C1022A; Color: Yellow/White/Blue/Black/as Client Need. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include grade, raw material, size, finish and color. 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 heat-set, knurled & molded-in inserts are available? The Heat-Set, Knurled & Molded-In Inserts category lists 395 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/heat-set-knurled-molded-in-inserts/](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/heat-set-knurled-molded-in-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 Heat-Set, Knurled & Molded-In Inserts →](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/heat-set-knurled-molded-in-inserts/) [![OEM and Small Orders Ok, DIN 16903 Customized Hex Round Thread Open Insert Brass Knurled Nuts with Shoulder for Plastics Molding](https://img.engineeringhardware.com/OEM-and-Small-Orders-Ok-DIN-16903-Customized-Hex-Round-Thread-Open-Insert-Brass-Knurled-Nuts-with-Shoulder-for-Plastics-Molding.webp)](https://engineeringhardware.com/product/oem-and-small-orders-ok-din-16903-customized-hex-round-thread-open-insert-brass/) Heat-Set, Knurled & Molded-In Inserts ### [OEM and Small Orders Ok, DIN 16903 Customized Hex Round Thread Open Insert Brass Knurled Nuts with Shoulder for Plastics 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