---
title: "High Quality Flat Top Zinc Plated U Bolt"
description: "High Quality Flat Top Zinc Plated U Bolt — U-Bolts & J-Bolts. Standard: DIN, ANSI, GB, BSW, GOST, Grade: 10.9. MOQ 1 piece, US$0.79."
url: https://engineeringhardware.com/product/high-quality-flat-top-zinc-plated-u-bolt/
source: Engineering Hardware & Fasteners
---

# High Quality Flat Top Zinc Plated U Bolt

[![High Quality Flat Top Zinc Plated U Bolt](https://img.engineeringhardware.com/High-Quality-Flat-Top-Zinc-Plated-U-Bolt.webp)](https://img.engineeringhardware.com/High-Quality-Flat-Top-Zinc-Plated-U-Bolt.webp)

- Standard & made-to-drawing parts
- Checked before shipping
- Air, sea & express delivery

[Bolts › U-Bolts & J-Bolts](https://engineeringhardware.com/fastener-products/bolts/u-bolts-j-bolts/)

Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/high-quality-flat-top-zinc-plated-u-bolt.md)

Model no. **CYS0044**

US$0.79 / piece

MOQ 1 piece · Final price confirmed in your quote

- **Standard:** DIN, ANSI, GB, BSW, GOST
- **Grade:** 10.9
- **Finish:** Hot Galvanizing
- **Color:** Black
- **Width:** 2 3/4"
- **Diameter:** 5/8"
- **Finishing:** Zinc Paint

Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20High%20Quality%20Flat%20Top%20Zinc%20Plated%20U%20Bolt%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fhigh-quality-flat-top-zinc-plated-u-bolt%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 |
| --- | --- |
| Standard | DIN, ANSI, GB, BSW, GOST |
| Grade | 10.9 |
| Model NO. | CYS0044 |
| Application | Auto Parts, Truck Trailer Parts |
| Finish | Hot Galvanizing |
| Packaging Unit | 1-2 PCS |
| Unit Weight | 0.6 |
| Color | Black |
| Lead Time | 30 Days |
| Width | 2 3/4" |
| Legth | 8" |
| Diameter | 5/8" |
| Shape | Flat |
| Finishing | Zinc Paint |
| Used for | U-Bolt Replaces |
| Transport Package | Ship by Sea |
| Specification | 10.9 U BOLT |
| Origin | China |
| HS Code | 7318151001 |
| Production Capacity | 100000PCS/Month |
| Wide Product Range | More than 800 different sizes of U bolts, center bolts, and wheel bolts |
| Fast Lead Time | 7-10 working days |
| Less MOQ | U bolt 10pcs |
| Category | [U-Bolts & J-Bolts](https://engineeringhardware.com/fastener-products/bolts/u-bolts-j-bolts/) |

## Technical parameters

| SIZE | 5/8"x2 3/4"x8" |
| --- | --- |
| Material | 40Cr(SAE5140)/35CrMo(SAE4135)/42CrMo(SAE4140) |
| Grade/Quality | 10.9 / 12.9 |
| Hardness | HRC32-39 / HRC39-42 |
| Surface Treatment | Phosphated, Zinc plated, Dacromet |
| Certificates | ISO/TS16949 |
| Color | Support Any Color |

| OEM | FORM | M | B | L | L1 | Size Parameter |
| --- | --- | --- | --- | --- | --- | --- |
| 81413120189 | Form 0 | M14x1.5 | 82 | 125 | 60 | M14x1.5x82x125 |
| 81413120233 | Form 0 | M16x1.5 | 81 | 325 | 95 | M16x1.5x81x325 |
| 81413120225 | Form 0 | M18x2.0 | 81 | 210 | 80 | M18x2.0x81x210 |
| 06461120220 81413120276 | Form 0 | M18x2.0 | 93 | 220 | 110 | M18x2.0x93x220 |
| 06461120295 | Form 0 | M18x2.0 | 93 | 295 | 110 | M18x2.0x93x295 |
| 3143510625 | Form 0 | M16x1.5 | 82 | 180 | 55 | M16x1.5x82x180 |
| 1585095 | Form 0 | M24x3.0 | 91 | 330 | 60 | M24x3.0x101x330 |
| 0313844084 | Form 0 | M24x3.0 | 101 | 280 | 85 | M24x3.0x101x280 |
| 0313844031 | Form 0 | M24x3.0 | 101 | 386 | 85 | M24x3.0x101x386 |
| 0313841050 | Form 0 | M24x3.0 | 128 | 350 | 85 | M24x3.0x128x350 |
| 1402006400S | Form 2 | M22*1.5 | 147 | 321 | 130 | M22x1.5x147x321 |
| 1402000900 | Form 2 | M24*2.0 | 136 | 320 | 80 | M24x2.0x136x320 |
| 1402001200 | Form 2 | M24*2.0 | 146 | 335 | 110 | M24x2.0x146x335 |
| 90117-14052 | Form 2 | M14*1.5 | 84 | 243 | 68 | M14x1.5x84x243 |
| 1590942 | Form 4 | M20*2.5 | 102 | 285 | 70 | M20x2.5x102x285 |

## Description

High Quality Flat Top Zinc Plated U Bolt is part of our u-bolts & j-bolts range (Bolts).

### Key details

- **Standard:** DIN, ANSI, GB, BSW, GOST
- **Grade:** 10.9
- **Diameter:** 5/8"
- **Finish:** Hot Galvanizing
- **Application:** Auto Parts, Truck Trailer Parts
- **Packaging Unit:** 1-2 PCS
- **Unit Weight:** 0.6
- **Color:** Black

Available configurations include standard, grade, finish, color and width. 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$0.79 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 High Quality Flat Top Zinc Plated U Bolt?

The listed minimum order is 1 piece, at US$0.79 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 High Quality Flat Top Zinc Plated U Bolt?

Standard: DIN, ANSI, GB, BSW, GOST; Grade: 10.9; Diameter: 5/8"; Finish: Hot Galvanizing; Application: Auto Parts, Truck Trailer Parts; Packaging Unit: 1-2 PCS. The full specification table and any technical parameter tables are listed on this page.

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

Listed configurations include standard, grade, finish, color and width. 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 u-bolts & j-bolts are available?

The U-Bolts & J-Bolts category lists 2,391 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/bolts/u-bolts-j-bolts/](https://engineeringhardware.com/fastener-products/bolts/u-bolts-j-bolts/)

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

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