描述

– 高强度性能：8.8级调质处理，抗拉强度≥800MPa，屈服强度≥640MPa，受力均匀，抗疲劳性强，不易断裂变形。

– 加长规格设计：可满足深孔、长连接场景的紧固需求，支持定制不同长度，适配设备安装、机械制造、钢结构连接等多种工况。

– 精密螺纹工艺：螺纹采用滚压成型，牙型饱满、无毛刺，咬合顺畅，锁紧力强，不易滑丝松脱。

– 多样表面处理：支持发黑、镀锌、达克罗、锌铝涂层等多种表面处理，防锈耐腐蚀，适配不同环境使用需求。

广泛应用于机械设备、汽车零部件、模具制造、工业自动化设备、钢结构工程等领域，是对连接强度和可靠性有较高要求场景的理想紧固件。

20年紧固件生产经验，全流程质量管控，支持按需定制规格、材质、表面处理，提供检测报告，可开增值税发票，批量订单优先发货。

– High-strength performance: Quenched and tempered to Grade 8.8, with a tensile strength ≥ 800MPa and yield strength ≥ 640MPa. It ensures uniform force distribution, excellent fatigue resistance, and is resistant to fracture and deformation.

– Extended length design: Meets fastening requirements for deep-hole and long-connection applications. Custom lengths are available to suit various working conditions such as equipment installation, machinery manufacturing, and steel structure connections.

– Precision thread technology: Threads are formed by rolling, resulting in full-profile, burr-free threads for smooth engagement, strong locking force, and resistance to thread stripping and loosening.

– Versatile surface treatment: Multiple surface treatments are available, including black oxide, zinc plating, Dacromet, and zinc-aluminum coating, providing anti-rust and anti-corrosion properties to adapt to different service environments.

Widely used in machinery and equipment, automotive components, mold manufacturing, industrial automation equipment, steel structure engineering, and other fields, it is the ideal fastener for applications requiring high connection strength and reliability.

With 20 years of fastener manufacturing experience, we implement full-process quality control. Custom specifications, materials, and surface treatments are available upon request. We provide test reports, issue VAT invoices, and prioritize delivery for bulk