SCM435 Steel Hexagon Head Cap Screws for Angular Pins

These SCM435 steel hexagon head cap screws are used in angular pin assemblies inside large-scale injection mold tooling where stable clamping and repeatable positioning are required.

• Indexing and alignment fixtures: In mold base setups, they clamp angular pin hardware so the pin orientation remains consistent after tightening cycles. The hexagon head drive supports efficient, controlled torque application during tool maintenance.
• Die-casting and large-mold die-casting stations: They fasten angular locating pins in robust workholding and alignment features, helping maintain clamp force under vibration and handling loads.
• Modular tooling components: The Type AI configuration is suited for standardized angular pin systems that require dependable assembly repeatability.

The SCM435 steel grade provides strong mechanical performance for rigid mounting, and the hex head format enables faster service without specialized fastening methods.

SCM435 is a chromium-molybdenum steel commonly selected for machine parts that require a balance of strength and toughness. It is typically supplied in a heat-treated condition and used for bolted fastening where reliable clamp load and dimensional stability are important.

• Strength & wear under clamping: Chromium and molybdenum improve hardenability, supporting higher strength after heat treatment.
• Toughness trade-off: Higher hardness increases resistance to deformation, but excessive hardness can reduce toughness; therefore, SCM435 is normally quenched and tempered to target a practical compromise.
• Heat treatment state: For fastening applications like angular pin hardware, SCM435 is generally used in a quenched & tempered condition to ensure dependable mechanical properties.

Compared with lower-carbon steels used for general fasteners, SCM435 provides improved mechanical performance after heat treatment, making it suitable for rigid pin mounting and repeatable assembly.

Select the nominal M diameter based on the angular pin hardware and the threaded connection requirements of the mold tooling interface.

• M nominal diameter options: 6, 8, 10, 12, 16, 20.
• Match to cavity/core requirements: Choose the screw size that corresponds to the tapped hole size in the angular pin bracket or mounting plate used in the mold base.
• Thread engagement: Ensure sufficient thread engagement length is available in the mating component to maintain clamp force and prevent loosening under vibration.
• Tolerance and fit: Use the mold’s specified hole and thread tolerances for the tapped feature; fastening performance depends on correct thread fit (avoid mismatched nominal sizes).

This series provides configurable nominal diameter (6–20). Length and other dimensions are not specified in the provided data, so those must be matched to the angular pin assembly design drawings.