Holo-krome 770305025 Hex Socket Cap Screw M3 X 0.50

Product Description

The HOLO-KROME 770305025 is a metric hex socket cap screw with an M3 x 0.50 thread and a 25 mm length under the head. It is manufactured from austenitic Grade A4 stainless steel with a bright, uncoated finish, making it suitable for applications where corrosion resistance is a priority. The drive type is internal hex (Allen), and the screw is partially threaded along its shank. It conforms to fastener standards ISO 3506-1 and ISO 4762. This fastener is installed by mechanical assembly technicians, maintenance professionals, and trade contractors who require a reliable metric cap screw for equipment fabrication or field repair work.

This screw is well suited for light-duty mechanical assemblies, panel mounting, HVAC equipment brackets, and general-purpose fastening in corrosive or wet environments where stainless steel is specified. The M3 x 0.50 metric thread pitch and 25 mm under-head length make it a common fit for instrument enclosures, small machinery, and electrical panel components. The minimum order quantity is 10 pieces per order.

Key Features

• M3 x 0.50 metric thread for precise engagement in standard metric tapped holes
• 25 mm length under head for consistent fastening depth in panel and bracket applications
• Austenitic Grade A4 stainless steel construction for corrosion resistance in wet or outdoor environments
• Bright, uncoated finish maintains dimensional accuracy without plating buildup
• Partially threaded shank provides clamping force and accurate joint alignment
• Conforms to ISO 3506-1 and ISO 4762 standards for verified dimensional and mechanical compliance

Compatibility

Designed as a standard ISO 4762 metric hex socket cap screw for use in any application requiring an M3 x 0.50 threaded fastener in stainless steel.

Installation Notes

Install using a correctly sized metric hex key or Allen driver to avoid rounding the socket drive. Verify that the mating tapped hole meets ISO metric thread specifications before installation. De-energize any electrical equipment and follow applicable lockout/tagout procedures before fastening components inside live enclosures. Do not exceed the rated clamping load for Grade A4 stainless steel fasteners, and avoid mixing with non-stainless hardware in corrosive environments to prevent galvanic reactions.