Holo-krome 77012 M3x0.50 Hex Socket Cap Screw Stainless

Product Description

The HOLO-KROME 77012 is a metric hex socket cap screw sized M3 x 0.50 with a 10 mm length under head. It is manufactured from Austenitic Grade A4 stainless steel with a bright, uncoated finish, making it well suited for corrosive or moisture-exposed environments. The screw is fully threaded along its shank and is driven with a standard hex socket tool. Fastener techs, millwrights, equipment assemblers, and field service technicians install this type of hardware in precision assemblies where thread engagement, corrosion resistance, and compact head profile are all required. It conforms to ISO 3506-1 and ISO 4762 fastener standards.

This screw is used in light mechanical assemblies, instrumentation panels, enclosures, and equipment frames where an M3 fine-pitch thread is specified. Its small diameter and short under-head length make it appropriate for thin-material applications or tight-clearance mounting situations. The Grade A4 stainless construction is commonly specified in marine, food-service, chemical, and outdoor-rated equipment assemblies where standard carbon steel fasteners would corrode.

Key Features

• M3 x 0.50 thread size with 10 mm length under head
• Fully threaded shank for maximum thread engagement in short fastener lengths
• Austenitic Grade A4 stainless steel construction for strong corrosion resistance
• Bright, uncoated finish — no surface treatment to affect thread tolerances
• Hex socket drive type for high torque transfer in small-head fasteners
• Meets ISO 3506-1 and ISO 4762 fastener standards

Compatibility

Designed as an ISO 4762-compliant M3 x 0.50 hex socket cap screw suitable for any assembly calling out that thread form and under-head length in Grade A4 stainless steel.

Installation Notes

Install using a correctly sized hex key or socket driver rated for the M3 drive to avoid rounding the socket. Power down or de-energize any equipment before fastener service on electrical or instrumentation assemblies. Do not mix Grade A4 stainless fasteners with dissimilar metals in high-conductivity or saltwater environments without consulting material compatibility guidelines. Follow applicable equipment manufacturer torque specifications; no specific torque value is provided with this part listing.