Machinery Button Head Screw

This batch of button head screws follows GB70.2 national standard, rated Class 10.9 high strength with black oxide surface treatment, all manufactured by Jinghong Fasteners. Made of authentic SCM435 alloy steel, every piece gets cold forging and professional heat treatment inside Jinghong Factory to deliver steady mechanical performance. Before shipment, Jinghong carries out full-range strict inspections for all goods, so users can enjoy consistent quality in long-term daily application.

As black oxide button head fasteners produced from Jinghong Factory, they also come with reliable anti-rust performance. They find extensive application in automatic production lines, heavy machinery, injection moulds, auto spare parts, hydraulic tools, electrical cabinets and agricultural equipment. These screws help maintain stable operation of machinery and cut down later maintenance expenses effectively.

Product Feature

The screw will not scratch moulds, metal boards or plastic components during mounting and dismounting. Its standard internal hex socket matches common hex wrenches perfectly. It clamps very tight and with no slipping.And it maintains reliable fastening performance. The threads allows easy screwing and tight matching after installation.

Jinghong adopts exclusive high-temperature baking black oxide treatment. It provides decent daily anti-rust ability, without disrupting thread matching or leading to thread seizing.

With integrated cold forging and heat treatment lines in Jinghong Factory, these SCM435 alloy steel screws fully reach Class 10.9 high strength standard, with outstanding tensile and shear resistance. They resist bending and fracture even under sustained heavy load and continuous vibration, making them ideal fasteners for heavy-duty fixing work.