Value Collection -42808-5 M30 Hex Socket Cap Screw

Product Description

The VALUE COLLECTION -42808-5 is a metric hex socket cap screw designed for high-strength bolted connections in industrial, mechanical, and structural assemblies. With an M30 x 3.50 thread size and a 110 mm length under head, this fastener is partially threaded and driven with a hex (Allen) key. It is manufactured from alloy steel to material grade 12.9, making it suitable for demanding load-bearing applications where tensile strength and fatigue resistance are critical. The black oxide coating provides moderate corrosion resistance and reduces light reflection in finished assemblies.

This cap screw is suited for use in heavy equipment manufacturing, machine tool assembly, die and mold construction, and industrial maintenance applications. The M30 size is common in large-frame machinery, presses, and structural joints requiring precise clamping force. The partially threaded shank allows for accurate shear load transfer through the grip length, which is important in close-tolerance bores and precision-aligned joints. Installation is typically performed by mechanical maintenance professionals and industrial assemblers working to engineered fastener specifications.

Key Features

• M30 x 3.50 metric thread for use in large-diameter tapped holes
• 110 mm length under head with partial threading for shear-critical applications
• Grade 12.9 alloy steel construction for high tensile and proof load capacity
• Black oxide finish for mild corrosion resistance and surface hardness retention
• Hex socket drive for high-torque installation in confined spaces
• Conforms to DIN 912 and ISO 898-1 fastener standards

Compatibility

Designed as a standard DIN 912 metric hex socket cap screw suitable for M30 x 3.50 tapped holes in industrial machinery, structural steel assemblies, and heavy-duty mechanical equipment requiring grade 12.9 fasteners.

Installation Notes

Installation should be performed by qualified mechanical technicians or industrial assemblers following engineered torque specifications for grade 12.9 M30 fasteners. De-energize and lock out all equipment before servicing any bolted joint. Use a calibrated torque wrench with the appropriate hex drive bit to achieve proper clamp load. Inspect the mating tapped hole for thread condition and cleanliness before installation to prevent galling or cross-threading.