---
title: "Professional A4 A8 Threaded Inserts Fasteners Nut"
description: "Professional A4 A8 Threaded Inserts Fasteners Nut — Thread Repair & Solid Threaded Inserts. MOQ 10,000 pieces, US$0.072 – 0.30."
url: https://engineeringhardware.com/product/professional-a4-a8-threaded-inserts-fasteners-nut/
source: Engineering Hardware & Fasteners
---

# Professional A4 A8 Threaded Inserts Fasteners Nut

[![Professional A4 A8 Threaded Inserts Fasteners Nut](https://img.engineeringhardware.com/Professional-A4-A8-Threaded-Inserts-Fasteners-Nut.webp)](https://img.engineeringhardware.com/Professional-A4-A8-Threaded-Inserts-Fasteners-Nut.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/professional-a4-a8-threaded-inserts-fasteners-nut.md)

Model no. **WHD021**

| **US$0.30**10,000–19,999 pieces | **US$0.22**20,000–49,999 pieces | **US$0.12**50,000–99,999 pieces | **US$0.072**100,000+ pieces |
| --- | --- | --- | --- |

MOQ 10,000 pieces · Final price confirmed in your quote

- **Head Style:** Headless
- **Standard:** DIN
- **Grade:** 4.8
- **Size:** M2.5~M12
- **Surface Treatment:** Zn/Ni/Tin/Au Plating, Black Oxide, Anodizing
- **Package Size:** 12.50cm * 11.50cm * 7.00cm
- **Material:** Brass

Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Professional%20A4%20A8%20Threaded%20Inserts%20Fasteners%20Nut%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fprofessional-a4-a8-threaded-inserts-fasteners-nut%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. | WHD021 |
| --- | --- |
| Connection | Common Bolt |
| Head Style | Headless |
| Standard | DIN |
| Grade | 4.8 |
| Size | M2.5~M12 |
| Series | Heat Staking/Press-in/Self-Tapping/Molded-in |
| Surface Treatment | Zn/Ni/Tin/Au Plating, Black Oxide, Anodizing |
| Hole | Blind or Through Hole |
| Design | OEM Services Provided |
| Application | Plastic Case/Cell Phone Shell/Funiture Equitment |
| Nspection | 100% QC Steps Inspect Before Shipment |
| Export Markets | Global |
| Transport Package | 25*16*25cm Carton Box, Then Polywood Box Packed |
| Specification | SGS; ROHS |
| Origin | Jiangsu |
| HS Code | 73181500 |
| Production Capacity | 200tons/Month |
| Package Size | 12.50cm * 11.50cm * 7.00cm |
| Package Gross Weight | 2.000kg |
| Customization | Available |
| Material | Brass |
| Type | Hexagon Head |
| Shipping Cost | Contact the supplier about freight and estimated delivery time. |
| Shortest Delivery | We have large stock, 3 days for stock items,7-15days for production. |
| Category | [Thread Repair & Solid Threaded Inserts](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/thread-repair-solid-threaded-inserts/) |

## Technical parameters

| Material | Brass |
| --- | --- |
| Nut Type | Insert nut |
| Diameter | M4 M5 M6 M8 |
| OEM | Available |

## Description

Professional A4 A8 Threaded Inserts Fasteners Nut is part of our thread repair & solid threaded inserts range (Threaded Inserts & Clinch Fasteners).

### Key details

- **Type:** Hexagon Head
- **Standard:** DIN
- **Material:** Brass
- **Grade:** 4.8
- **Size:** M2.5~M12
- **Head Style:** Headless
- **Surface Treatment:** Zn/Ni/Tin/Au Plating, Black Oxide, Anodizing
- **Connection:** Common Bolt

Available configurations include head style, standard, grade, size and surface treatment. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

### Ordering through Engineering Hardware & Fasteners

Minimum order is 10,000 pieces at US$0.072 – 0.30 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 Professional A4 A8 Threaded Inserts Fasteners Nut?

The listed minimum order is 10,000 pieces, at US$0.072 – 0.30 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$0.30 for 10,000–19,999 pieces; US$0.22 for 20,000–49,999 pieces; US$0.12 for 50,000–99,999 pieces; US$0.072 for 100,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

### What are the main specifications of Professional A4 A8 Threaded Inserts Fasteners Nut?

Type: Hexagon Head; Standard: DIN; Material: Brass; Grade: 4.8; Size: M2.5~M12; Head Style: Headless. The full specification table and any technical parameter tables are listed on this page.

### Can this product be customized (OEM)?

Listed configurations include head style, standard, grade, size and surface treatment. 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/)

[![Custom CNC C3604 Brass Hex Standoff Nut, H14×15 M5 Hex Female Thread Nut, 10μm Nickel Plated M5 Internal Thread Hex Nut for Electronic Assembly](https://img.engineeringhardware.com/Custom-CNC-C3604-Brass-Hex-Standoff-Nut-H14-15-M5-Hex-Female-Thread-Nut-10-m-Nickel-Plated-M5-Internal-Thread-Hex-Nut-for-Electronic-Assembly.webp)](https://engineeringhardware.com/product/custom-cnc-c3604-brass-hex-standoff-nut-h14a15-m5-hex-female-thread-nut-10i14m/)

Thread Repair & Solid Threaded Inserts

### [Custom CNC C3604 Brass Hex Standoff Nut, H14×15 M5 Hex Female Thread Nut, 10μm Nickel Plated M5 Internal Thread Hex Nut for Electronic Assembly](https://engineeringhardware.com/product/custom-cnc-c3604-brass-hex-standoff-nut-h14a15-m5-hex-female-thread-nut-10i14m/)

Hex Flange Insert Nut · DIN, ANSI, GB, JIS, GOST, BSW

**US$0.012 – 0.12**MOQ 10,000 pieces

[![Forged Brass Stainless Steel Zinc Alloy Self Tapping Wooden Threaded Insert Nut for Wood](https://img.engineeringhardware.com/Forged-Brass-Stainless-Steel-Zinc-Alloy-Self-Tapping-Wooden-Threaded-Insert-Nut-for-Wood.webp)](https://engineeringhardware.com/product/forged-brass-stainless-steel-zinc-alloy-self-tapping-wooden-threaded-insert-nut-for/)

Thread Repair & Solid Threaded Inserts

### [Forged Brass Stainless Steel Zinc Alloy Self Tapping Wooden Threaded Insert Nut for Wood](https://engineeringhardware.com/product/forged-brass-stainless-steel-zinc-alloy-self-tapping-wooden-threaded-insert-nut-for/)

Insert Nut · DIN, ANSI, GB, JIS, GOST, BSW

**US$0.012 – 0.12**MOQ 10,000 pieces

[![M2-0.4 Steel Stainless Steel Aluminum Locking Wire with Keylocking Threaded Inserts](https://img.engineeringhardware.com/M2-0-4-Steel-Stainless-Steel-Aluminum-Locking-Wire-with-Keylocking-Threaded-Inserts.webp)](https://engineeringhardware.com/product/m2-0-4-steel-stainless-steel-aluminum-locking-wire-with-keylocking-threaded-inserts/)

Thread Repair & Solid Threaded Inserts

### [M2-0.4 Steel Stainless Steel Aluminum Locking Wire with Keylocking Threaded Inserts](https://engineeringhardware.com/product/m2-0-4-steel-stainless-steel-aluminum-locking-wire-with-keylocking-threaded-inserts/)

Common · Stainless Steel

**US$0.11**MOQ 10,000 pieces

[![Premium Internal Carbide Thread Insert 16IR3-5ISO for Stainless Steel Cutting](https://img.engineeringhardware.com/Premium-Internal-Carbide-Thread-Insert-16IR3-5ISO-for-Stainless-Steel-Cutting.webp)](https://engineeringhardware.com/product/premium-internal-carbide-thread-insert-16ir3-5iso-for-stainless-steel-cutting/)

Thread Repair & Solid Threaded Inserts

### [Premium Internal Carbide Thread Insert 16IR3-5ISO for Stainless Steel Cutting](https://engineeringhardware.com/product/premium-internal-carbide-thread-insert-16ir3-5iso-for-stainless-steel-cutting/)

Carbide Threading Insert · Tungsten Carbide

**US$3.36 – 8.40**MOQ 10 pieces

[![Best Quality CNC M4/M6 Pitch Hex Threaded Insert for Pipework](https://img.engineeringhardware.com/Best-Quality-CNC-M4-M6-Pitch-Hex-Threaded-Insert-for-Pipework.webp)](https://engineeringhardware.com/product/best-quality-cnc-m4-m6-pitch-hex-threaded-insert-for-pipework/)

Thread Repair & Solid Threaded Inserts

### [Best Quality CNC M4/M6 Pitch Hex Threaded Insert for Pipework](https://engineeringhardware.com/product/best-quality-cnc-m4-m6-pitch-hex-threaded-insert-for-pipework/)

GB, EN, China GB Code, JIS Code, TEMA, ASME · Aluminum, Stainless Stee…

**US$0.12**MOQ 1 piece

[![M6 M8 M10 1/4 3/8 5/16 Cheap Zinc Alloy Hex Drive Furniture Wood Threaded Insert Nut](https://img.engineeringhardware.com/M6-M8-M10-1-4-3-8-5-16-Cheap-Zinc-Alloy-Hex-Drive-Furniture-Wood-Threaded-Insert-Nut.webp)](https://engineeringhardware.com/product/m6-m8-m10-1-4-3-8-5-16-cheap-zinc-alloy-hex-drive-furniture-wood-threaded-insert-nut/)

Thread Repair & Solid Threaded Inserts

### [M6 M8 M10 1/4 3/8 5/16 Cheap Zinc Alloy Hex Drive Furniture Wood Threaded Insert Nut](https://engineeringhardware.com/product/m6-m8-m10-1-4-3-8-5-16-cheap-zinc-alloy-hex-drive-furniture-wood-threaded-insert-nut/)

Inserts Nut · DIN, ANSI, GB, JIS, GOST, BSW

**US$0.012 – 0.36**MOQ 100 pieces

[![Steel Screw Thread Insert](https://img.engineeringhardware.com/Steel-Screw-Thread-Insert.webp)](https://engineeringhardware.com/product/steel-screw-thread-insert/)

Thread Repair & Solid Threaded Inserts

### [Steel Screw Thread Insert](https://engineeringhardware.com/product/steel-screw-thread-insert/)

Round Head · DIN, ANSI, GB, JIS, GOST, BSW, OEM

**US$0.012**MOQ 100 pieces

[![Manufacturers Hot Selling China Wholesale Stainless Steel Hexagon Nut Furniture Wood Threaded Insert Nut Trapezoidal Nut Tr 60X9 for Wood](https://img.engineeringhardware.com/Manufacturers-Hot-Selling-China-Wholesale-Stainless-Steel-Hexagon-Nut-Furniture-Wood-Threaded-Insert-Nut-Trapezoidal-Nut-Tr-60X9-for-Wood.webp)](https://engineeringhardware.com/product/manufacturers-hot-selling-china-wholesale-stainless-steel-hexagon-nut-furniture-wood/)

Thread Repair & Solid Threaded Inserts

### [Manufacturers Hot Selling China Wholesale Stainless Steel Hexagon Nut Furniture Wood Threaded Insert Nut Trapezoidal Nut Tr 60X9 for Wood](https://engineeringhardware.com/product/manufacturers-hot-selling-china-wholesale-stainless-steel-hexagon-nut-furniture-wood/)

Hexagon Head · DIN, GB, ANSI, JIS

**US$0.60 – 1.08**MOQ 10 pieces

**US$0.072 – 0.30**MOQ 10,000 piecesGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Professional%20A4%20A8%20Threaded%20Inserts%20Fasteners%20Nut%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fprofessional-a4-a8-threaded-inserts-fasteners-nut%2F)