Black-Plated U - Bolts

• Customization: Available
• Material: Carbon Steel
• Type: Round Head
• Model NO.: GB/T 14383-2008
• Connection: Common Bolt
• Head Style: Round
• Standard: DIN, GB
• Grade: 8.8
• Application: Machinery, Chemical Industry, Environmental, Building
• Finish: Black
• Transport Package: Bag
• Specification: M6-M30
• Trademark: LING KE
• Origin: Yong Nian
• HS Code: 731815
• Production Capacity: 300000/Year
• Package Size: 50.00cm * 30.00cm * 30.00cm
• Package Gross Weight: 50.000kg

Product Description

Black Galvanized U - Bolts 

General Overview

U - shaped Structure

Good Lubricity and Reduced Friction

Black galvanized U - bolts, also known as black - oxide U - bolts, are a special type of fasteners designed in a U - shape. As non - standard components, they feature threaded ends on both sides, which are intended to be paired with nuts for secure fastening purposes. The "black galvanized" characteristic results from a specific surface treatment process that gives the bolts a distinct black finish.

The U - shape of these bolts is their most prominent feature. This unique shape enables them to effectively encircle and hold objects firmly. They are particularly suitable for applications such as securing pipes, rods, or other cylindrical or semi - cylindrical items. For example, in plumbing systems, they can be used to fasten water pipes to walls or ceilings, providing stable support.

The black - oxide coating can provide better lubrication between parts. When two surfaces with black - oxide coatings come into contact and move relative to each other, the friction coefficient is lower compared to uncoated metal surfaces. This property is beneficial in applications where the U - bolts are used in moving or vibrating systems. For example, in automotive suspension systems where the U - bolts are subject to continuous movement and vibration, the reduced friction helps to reduce wear and tear, and can also contribute to smoother operation of the vehicle's suspension, improving ride comfort.

Packing & Delivery

Bag Packaging

Carton Packaging

Fasteners can be packaged in durable plastic bags, which are available in various sizes to accommodate different quantities (e.g., small batches of screws, nuts, or bolts). The bags are typically sealed by heat or with a zipper to prevent moisture, dust, and loss of contents. This method is lightweight, cost-effective, and suitable for retail sales, small shipments, or situations where easy access to the fasteners is needed. Additionally, clear plastic bags allow for quick visual identification of the products inside.

For larger quantities or bulk transportation, cartons are commonly used. These are sturdy cardboard boxes, often reinforced with corrugated layers to provide protection against impact during handling and shipping. Fasteners in cartons are usually pre-packed in bags or separated by dividers to avoid friction and damage. Cartons can be labeled with product details (e.g., type, size, quantity) and are stackable, optimizing storage and logistics efficiency. This method is ideal for industrial orders, wholesale distribution, or long-distance transportation where durability is a priority.

Company Profile

Company Name

 Hebei LING KE Metal Products Manufacturing Co.has firmly established itself as a leading force in the fastener industry, with a rich history and a commitment to excellence that spans over 10 years. Since its inception, the company has been dedicated to providing high-quality fasteners and comprehensive fastening solutions to a diverse range of industries worldwide.In recent decades, Hebei LING KE Metal Products Manufacturing Co. has expanded its footprint globally, establishing strategic partnerships and distribution centers in key regions around the world. This has allowed the company to better serve its international customer base and meet the growing demand for its products in emerging markets.