Value Collection -42808-4 M30 Hex Socket Cap Screw

Product Description

The VALUE COLLECTION -42808-4 is a fully threaded hex socket cap screw sized M30 x 3.50 metric with a 100 mm length under head. Manufactured from alloy steel to material grade 12.9, it carries a black oxide finish coating for corrosion resistance and reduced light reflection. This fastener conforms to DIN 912 and ISO 898-1 standards, making it suitable for high-strength bolted joints in industrial, mechanical, and structural assemblies. Installation requires a hex socket (Allen) driver or key sized for an M30 fastener. Maintenance technicians, millwrights, and mechanical assemblers are the typical installers.

This screw is appropriate for heavy-duty applications where a high-clamp-load, socket-drive fastener is required. The 12.9 material grade indicates a high-tensile alloy steel construction capable of withstanding significant torque and shear loads. It is commonly used in machine frames, hydraulic equipment, tooling fixtures, and industrial machinery where a flush or recessed head profile is needed. The black oxide coating provides a uniform matte finish and mild surface protection in controlled environments.

Key Features

• M30 x 3.50 thread size with 100 mm length under head
• Fully threaded shaft for maximum thread engagement
• Alloy steel construction at material grade 12.9 for high tensile strength
• Black oxide finish coating for corrosion resistance and low-reflectance appearance
• Hex socket (Allen) drive type for recessed installation access
• Conforms to DIN 912 and ISO 898-1 fastener standards

Compatibility

Designed as an OEM-style replacement or service fastener for M30 x 3.50 metric hex socket cap screw applications conforming to DIN 912 specifications.

Installation Notes

Installation should be performed by a qualified mechanic or millwright familiar with metric high-strength fasteners. Always verify the mating thread and clearance hole are sized correctly for M30 x 3.50 before installation. Use a calibrated torque wrench appropriate for grade 12.9 fasteners and follow the equipment manufacturer torque specifications for the application. Inspect threads for damage before installation and do not reuse fasteners that show signs of galling or deformation.