Value Collection CA6X08030-050BX Carriage Bolt M8x1.25

Product Description

The VALUE COLLECTION CA6X08030-050BX is an M8 x 1.25 carriage bolt with a 30 mm length under head, manufactured from Austenitic Grade A2 stainless steel. The square neck under the domed head locks the fastener in place during tightening, preventing rotation without the need for a secondary tool on the bolt side. Conforming to DIN 603, this fastener meets a widely recognized metric standard for round-head square-neck bolts. Grade A2 stainless construction provides solid corrosion resistance suitable for general-purpose and moderate-exposure applications. This bolt is sold in metric sizing and is intended for use where a smooth, finished appearance on one face is required.

This carriage bolt is suited for wood-to-wood, wood-to-metal, and light structural assemblies in residential construction, HVAC equipment mounting, plumbing fixture support, and general trade fabrication. The square neck seats into pre-drilled square holes or bites into wood substrates to resist spin during nut tightening. Its metric M8 thread and DIN 603 compliance make it a direct fit in metric-spec applications and imported equipment assemblies where imperial fasteners are not appropriate.

Key Features

• M8 x 1.25 thread specification per DIN 603 metric standard
• 30 mm length under head for consistent grip-length calculations
• Square neck prevents fastener rotation during installation without a wrench on the bolt
• Austenitic Grade A2 stainless steel for corrosion resistance in damp or outdoor environments
• Smooth domed head delivers a clean finished appearance on the accessible face
• Metric system fastener suitable for equipment and assemblies specified in millimeters

Compatibility

Designed as a metric DIN 603 carriage bolt for use in any application requiring an M8 x 1.25 round-head square-neck fastener with a 30 mm length under head.

Installation Notes

Installation is typically performed by mechanics, millwrights, or trade professionals using a standard wrench or socket on the mating nut. Power down or de-energize any equipment before fastening near electrical components. Drill the clearance hole to the correct diameter to allow the square neck to seat fully and resist rotation. Do not overtighten stainless steel fasteners with power tools, as galling of the threads can occur — apply fastener lubricant or anti-seize where appropriate.