Holo-krome 77136 Hex Socket Cap Screw M6x1 25mm Ss

Product Description

The HOLO-KROME 77136 is a metric hex socket cap screw designed for precision fastening in mechanical assemblies, equipment fabrication, and structural connections. Manufactured from Austenitic Grade A4 stainless steel with a bright uncoated finish, this fastener delivers strong corrosion resistance in wet, chemical, or outdoor environments. The M6 x 1.00 thread profile and 25 mm length under head make it a standard choice for medium-duty clamping applications. The internal hex drive accepts a standard hex key, allowing high torque transmission in confined spaces where a wrench cannot reach. Machinists, millwrights, and mechanical contractors install this screw in stainless-compatible assemblies.

This fastener is suited for residential and commercial mechanical equipment, industrial machinery, HVAC equipment frames, pump housings, and structural brackets where stainless steel fasteners are specified. The fully threaded shank provides maximum thread engagement across the full grip length, making it appropriate for thin-material applications and through-bolt configurations. Fabricators and service technicians working to ISO specifications will find this screw compliant with ISO 4762 dimensional standards and ISO 3506-1 material standards for stainless steel fasteners.

Key Features

• Austenitic Grade A4 stainless steel construction for high corrosion resistance
• Fully threaded shank for maximum thread engagement across full grip length
• M6 x 1.00 thread size conforming to ISO 4762 and ISO 3506-1 standards
• Internal hex socket drive for high torque in restricted-access locations
• Bright uncoated finish — no coating to crack, chip, or contaminate threads
• 25 mm length under head suits medium-depth clamping and through-bolt applications

Compatibility

Designed as a standard ISO 4762 metric hex socket cap screw for use in any application specifying an M6 x 1.00 fully threaded stainless steel cap screw with a 25 mm length under head.

Installation Notes

Installation is typically performed by machinists, millwrights, or mechanical service technicians using a calibrated hex key or Allen driver sized for M6 socket cap screws. Before installation, verify thread engagement depth and ensure the mating threaded hole or nut is compatible with M6 x 1.00 pitch. Avoid mixing stainless steel fasteners with dissimilar metals in high-moisture environments where galvanic corrosion may occur. Do not use impact drivers at full power on stainless fasteners, as galling of the threads is a known risk without proper lubrication.