China friction type high‑strength boltJIS B1186 F10T heavy hex bolt Manufacturers, Suppliers, Factory

Do you know why they are both hexagons, and what is the difference between outer hexagons and inner hexagons? Here, I will talk about them in detail from the appearance, fastening tools, cost, etc.

Hammer Drive Ceiling Anchor Zinc Plated is a practical fastening solution designed for secure installation in concrete, brick, and masonry surfaces. This blog explores its structure, advantages, installation process, applications, and selection factors. As a professional fastener manufacturer, Gangtong Zheli provides high-quality Hammer Drive Ceiling Anchor Zinc Plated products engineered for durability, corrosion resistance, and stable fixing performance in construction projects.

In the field of construction and engineering, conical anchors are a commonly used fixing device. They provide strong support in concrete structures and are widely used in various construction projects.

​Safety is the primary consideration when working on a roof. A roof hook is an important tool that helps workers securely secure ladders to the roof.

In March 2026, the management and production teams of Ningbo Gangtong Zheli Fasteners Co., Ltd. held a special quality improvement meeting at its 15,000 sqm factory in Zhenhai Chemical Industrial Zone, Ningbo, China. The event was launched to further enhance product stability and meet growing global demand for high‑strength structural fasteners. During the meeting, the team reviewed production processes, heat treatment controls, and inspection procedures, and finalized a new round of technical upgrades for heavy hex bolts, ASTM A563 nuts, and threaded rods. Led by senior engineers and production supervisors, the company will strengthen raw material testing and batch tracking to ensure full compliance with ASTM, ISO, DIN, and ANSI standards. This initiative aims to support stable delivery for overseas customers in North America, Europe, and the Middle East while strengthening the company’s reputation as a reliable China fastener supplier.

Hot dip galvanized HDG high tensile hex cap screw is a special type of fastener designed specifically for applications that require high tensile strength and corrosion resistance.