Value Collection 532493BR M30x3.5 Hex Socket Cap Screw

Product Description

The VALUE COLLECTION 532493BR is a metric hex socket cap screw designed for high-strength fastening applications across industrial, mechanical, and structural assemblies. Manufactured from alloy steel with a black oxide coating, this screw meets the DIN 912 and ISO 898-1 fastener standards at material grade 12.9 — the highest common strength classification for metric socket cap screws. The M30 x 3.50 thread profile and 200 mm length under head make it suitable for heavy-duty bolted joints where tensile strength and clamp load are critical. Installation requires a standard hex socket driver. This fastener is typically installed by millwrights, maintenance mechanics, and equipment technicians working on presses, machinery frames, and structural components.

This screw is suited for demanding industrial applications where high clamping force and resistance to loosening under vibration are required. The partial threading configuration concentrates the shank load across the unthreaded body, making it appropriate for precision-clearance bolt holes and shear-loaded joints. The black oxide finish provides mild corrosion resistance and reduces light reflection on exposed hardware. It is commonly used in manufacturing equipment, hydraulic cylinder mounting, heavy machine frames, and similar fixed-assembly installations.

Key Features

• Material grade 12.9 alloy steel for maximum tensile strength in metric socket cap screws
• Partially threaded shank suits shear-loaded and precision-clearance applications
• Black oxide coating provides mild corrosion resistance and a low-reflectance finish
• Conforms to DIN 912 and ISO 898-1 fastener standards for dimensional and mechanical consistency
• M30 x 3.50 coarse thread pitch with 200 mm length under head for heavy structural joints

Compatibility

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

Installation Notes

Installation should be performed by qualified mechanics or millwrights using a correctly sized hex socket driver or torque wrench. Always de-energize and lock out equipment before fastener service on machinery. Apply thread lubricant or anti-seize compound as required by the joint specification; dry and lubricated torque values differ significantly for this thread size. Verify mating thread condition and hole depth before installation to avoid cross-threading or bottoming out.