Holo-krome 77070 M4 X 0.70 Hex Socket Cap Screw Stainless

Product Description

The HOLO-KROME 77070 is a metric hex socket cap screw designed for applications requiring a strong, corrosion-resistant threaded fastener. Sized at M4 x 0.70 with a 32 mm length under head, this screw is partially threaded and machined from austenitic Grade A4 stainless steel with a bright, uncoated finish. It conforms to ISO 4762 and ISO 3506-1 fastener standards, making it suitable for environments where dimensional precision and material certification matter. Installers in mechanical, industrial, marine, and food-service settings rely on Grade A4 stainless fasteners for their resistance to oxidation and chemical exposure.

This cap screw is suited for use in corrosive or wet environments where carbon steel fasteners would degrade. Typical applications include marine hardware assembly, food processing equipment, chemical processing machinery, and outdoor structural assemblies. The hex socket drive accepts a standard metric hex key, allowing installation in recessed or tight-clearance locations where an external-drive fastener would not fit. It is appropriate for both light-fabrication and maintenance-repair applications across industrial, commercial, and marine trades.

Key Features

• M4 x 0.70 thread size with 32 mm length under head for precise metric fitment
• Austenitic Grade A4 stainless steel construction for strong corrosion resistance
• Partially threaded shank for controlled clamping force and shear load capacity
• Bright uncoated finish maintains dimensional tolerances per ISO 4762
• Hex socket drive allows installation in recessed and confined spaces
• Meets ISO 3506-1 and ISO 4762 fastener standards for material and geometry compliance

Compatibility

Designed as an ISO 4762-compliant metric hex socket cap screw for use wherever an M4 x 0.70 partially threaded fastener is specified in stainless steel construction.

Installation Notes

Installation requires a metric hex key or hex bit driver sized for an M4 socket cap screw. Always verify thread engagement depth and confirm the mating hole is tapped to M4 x 0.70 before driving. In marine or chemical environments, apply an appropriate anti-seize compound compatible with stainless steel to prevent galling on installation and removal. Follow applicable mechanical or structural codes for fastener torque requirements based on joint design and load conditions.