Holo-krome 77104 M5 X 0.80 Hex Socket Cap Screw 30mm

Product Description

The HOLO-KROME 77104 is an M5 x 0.80 hex socket cap screw with a 30 mm length under head, manufactured from austenitic Grade A4 stainless steel with a bright, uncoated finish. Fully threaded along its length, it is driven with a standard hex key and conforms to ISO 4762 and ISO 3506-1 fastener standards. The Grade A4 austenitic stainless steel construction provides strong corrosion resistance, making this screw well suited for wet, marine, or chemically aggressive environments. Machinists, millwrights, and mechanical contractors install this type of fastener in precision assemblies, equipment panels, and structural fixtures where both strength and corrosion resistance are required.

This screw is a standard metric fastener used across a wide range of industrial, mechanical, and trade applications. Its fully threaded M5 x 0.80 profile fits standard M5-threaded holes in metal fabrications, machine frames, enclosures, and equipment housings. The hex socket drive allows installation in recessed or tight-clearance locations where a conventional hex head wrench cannot operate. It is a common replacement or supplemental fastener in HVAC equipment panels, electrical enclosures, plumbing fixture assemblies, and general mechanical maintenance work.

Key Features

• M5 x 0.80 thread size with 30 mm length under head, fully threaded
• Austenitic Grade A4 stainless steel for high corrosion resistance
• Bright, uncoated finish — no plating variability affecting thread fit
• Hex socket drive for use in tight-clearance or recessed installations
• Conforms to ISO 4762 and ISO 3506-1 fastener standards

Compatibility

Designed as an OEM-style replacement or supplemental fastener for any application requiring an M5 x 0.80 fully threaded hex socket cap screw per ISO 4762 and ISO 3506-1 standards.

Installation Notes

Install with the appropriate metric hex key sized for M5 socket cap screws. Ensure the receiving thread is clean and free of debris before driving. Stainless steel fasteners can be prone to galling — apply a compatible anti-seize compound to the threads when installing into stainless or aluminum tapped holes. De-energize and lock out any equipment before accessing fastened panels or enclosures.