Grade 12.9 Steel Internally Threaded Dowel Pin — GB/T 120.1 / ISO 8735 (Series 100)

For Internally Threaded Dowel Pin — GB/T 120.1 / ISO 8735 (Series 100) in Grade 12.9 Steel, the controlling decisions are corrosion, strength and service temperature. This guide summarizes those three for Grade 12.9 Steel Internally Threaded Dowel Pin — GB/T 120.1 / ISO 8735 (Series 100) and lists every size we supply.

Why Choose Grade 12.9 Steel for Internally Threaded Dowel Pin — GB/T 120.1 / ISO 8735 (Series 100)

The highest common strength class, for high-load machine assembly. For internally threaded dowel pin — gb/t 120.1 / iso 8735 (series 100), this matters when requires plating or black-oxide protection is the primary requirement.

Mechanical & Physical Properties

Corrosion Behavior in Service

Carbon and alloy steel internally threaded dowel pin — gb/t 120.1 / iso 8735 (series 100) require a coating for corrosion protection. Zinc plating (with or without passivation) is the most common; hot-dip galvanizing is used for outdoor structural service; black-oxide is mainly a tarnish-prevention finish for tool-room use.

Comparable Grades

For Internally Threaded Dowel Pin — GB/T 120.1 / ISO 8735 (Series 100), class 8.8 is the comparable strength step. Move up when the joint preload approaches the proof load of the current class; move down when the joint is over-specified. For corrosion-critical service, switch to stainless A2 or A4.

Sizes of Internally Threaded Dowel Pin — GB/T 120.1 / ISO 8735 (Series 100) Available in Grade 12.9 Steel