Value Collection 532547BR M18x2.5 Hex Socket Cap Screw

Product Description

The VALUE COLLECTION 532547BR is a metric hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. Built from alloy steel with a black oxide finish, this screw meets DIN 912 and ISO 898-1 standards at material grade 12.9 — one of the highest-strength grades available for metric fasteners. The M18 x 2.50 thread profile and 150 mm length under head make it suited for thick-section clamping jobs where a standard shorter fastener will not reach. It is driven with a hex key (Allen wrench) and is partially threaded along the shank.

This fastener is used across a wide range of trades and industries, including mechanical contracting, equipment assembly, structural fabrication, and industrial maintenance. The partial threading provides a smooth shank section that resists shear loads and aligns mating components accurately before the thread engages. Grade 12.9 alloy steel construction makes it appropriate for heavy-duty bolted joints where torque-to-yield performance and clamp load retention are critical.

Key Features

• Grade 12.9 alloy steel — high tensile strength for demanding bolted connections
• Black oxide finish — mild corrosion resistance and reduced light reflection
• Partially threaded shank — improves shear resistance and component alignment
• M18 x 2.50 thread — standard coarse metric pitch per DIN 912
• Hex socket drive — requires hex key; allows high torque in recessed or tight-clearance locations
• Meets DIN 912 and ISO 898-1 fastener standards

Compatibility

Designed as a DIN 912 and ISO 898-1 compliant hex socket cap screw for use in any tapped M18 x 2.50 metric thread application requiring a grade 12.9 alloy steel fastener.

Installation Notes

Install with the correctly sized metric hex key or socket driver to avoid rounding the drive recess. Ensure the receiving threaded hole is clean, free of debris, and meets the required depth for full thread engagement before installation. Apply thread lubricant or anti-seize as required by the assembly specification, since black oxide does not provide significant lubrication. De-energize and lock out any equipment before replacing fasteners in live mechanical assemblies.