Holo-krome 77008 M3x0.5 Hex Socket Cap Screw 8mm Ss

Product Description

The HOLO-KROME 77008 is a metric hex socket cap screw designed for precision fastening in industrial, mechanical, and trade applications. Sized M3 x 0.50 with an 8 mm length under head, this fastener is fully threaded and features a recessed hex drive socket for use with standard hex keys or Allen wrenches. Constructed from austenitic Grade A4 stainless steel with a bright, uncoated finish, it provides solid corrosion resistance without surface treatment. This screw is manufactured to ISO 3506-1 and ISO 4762 standards, making it a reliable choice for metric fastening work where material grade and dimensional accuracy matter.

This fastener suits light mechanical assemblies, equipment enclosures, instrumentation panels, and precision fixtures where a low-profile cap head and hex socket drive are required. The fully threaded M3 shank engages the entire grip length, making it well suited for thin material applications or short blind-hole installations. Machinists, millwrights, HVAC equipment assemblers, and maintenance technicians commonly use this size when working with metric-threaded components in stainless steel environments where corrosion resistance is a factor.

Key Features

• M3 x 0.50 thread size with 8 mm length under head for precise short-reach fastening
• Fully threaded shank maximizes thread engagement across the entire fastener length
• Austenitic Grade A4 stainless steel construction for corrosion resistance
• Bright uncoated finish maintains dimensional consistency and clean appearance
• Hex socket drive accepts standard hex keys for controlled torque application
• Manufactured to ISO 3506-1 and ISO 4762 fastener standards

Compatibility

Designed for use in any M3 x 0.50 metric-threaded application requiring a hex socket cap screw to ISO 4762 dimensions. Suitable for use with standard metric hex key sets.

Installation Notes

Installation is performed using a properly sized metric hex key or Allen driver; use of an undersized key risks rounding the socket drive. Always ensure the mating threaded hole or nut is also rated for stainless steel fasteners to avoid galvanic incompatibility. Follow applicable fastener torque guidelines for M3 stainless fasteners per your assembly specification or equipment service documentation. Minimum order quantity for this fastener is 10 pieces.