Holo-krome 77016 M3x0.50 Hex Socket Cap Screw Stainless

Product Description

The HOLO-KROME 77016 is an M3 x 0.50 metric hex socket cap screw with a 12 mm length under head, manufactured from austenitic Grade A4 stainless steel with a bright, uncoated finish. This fastener is fully threaded along its entire shank length and driven with a hex (Allen) key. It is designed for precision fastening applications where corrosion resistance and dimensional consistency are critical. The Grade A4 stainless steel construction meets ISO 3506-1 and ISO 4762 standards, making it suitable for demanding environments including wet, marine, and chemical-exposure conditions. Machinists, millwrights, and field technicians install this screw type across a wide range of mechanical assemblies.

This screw is suited for light-duty to medium-duty fastening in equipment panels, instrumentation housings, machinery guards, and fabricated assemblies where metric fasteners are specified. The M3 thread size is commonly found in compact mechanical and electrical enclosures, HVAC control panels, and precision equipment. The uncoated stainless finish eliminates the risk of coating delamination in high-humidity or corrosive service environments.

Key Features

• Grade A4 austenitic stainless steel construction for superior corrosion resistance
• Fully threaded shank provides maximum thread engagement along the full 12 mm under-head length
• Hex socket drive allows torque application in tight clearance areas with a standard Allen key
• Bright, uncoated finish — no coating layer to crack, peel, or add dimensional variation
• Conforms to ISO 3506-1 and ISO 4762 fastener standards
• M3 x 0.50 metric thread form for use wherever metric specifications are required

Compatibility

Designed as a standard ISO 4762 metric hex socket cap screw, suitable for any M3 x 0.50 threaded application requiring a fully threaded, stainless steel fastener.

Installation Notes

Install using a correctly sized hex key or Allen driver to avoid rounding the socket drive. Ensure mating threads are clean and free of debris before installation. When installing stainless fasteners into stainless threaded holes, apply an appropriate anti-seize compound to reduce the risk of galling. Power down or de-energize any equipment before accessing internal fasteners on electrical or HVAC enclosures.