Value Collection HC3XX20090-001BX Hex Head Cap Screw M20

Product Description

The VALUE COLLECTION HC3XX20090-001BX is a fully threaded metric hex head cap screw manufactured from Grade 316 austenitic stainless steel, classified as Grade A4 under ISO standards. The fastener measures M20 x 2.50 thread pitch with a 90 mm length under head and a 30 mm hex drive. Grade 316 stainless steel provides strong resistance to corrosion, pitting, and chloride attack, making it a dependable choice in demanding service environments. It carries conformance to DIN 933, EN 24017, and ISO 4017 standards. Mechanical, maintenance, and industrial trades use this size frequently in structural and equipment assembly applications requiring metric fasteners.

This cap screw is suited for use in marine, chemical processing, food service, and outdoor environments where corrosion resistance is a priority. The fully threaded shank allows engagement along the entire bolt length, which is useful when threading into blind holes or when maximum clamping surface contact is needed. The bright, uncoated finish is standard for Grade A4 stainless hardware and requires no additional surface treatment. Sold individually, this fastener fits applications where single-unit procurement is practical for maintenance or repair work.

Key Features

• Grade 316 austenitic stainless steel, Grade A4, with high chloride and corrosion resistance
• Fully threaded shank for maximum thread engagement along entire bolt length
• Conforms to DIN 933, EN 24017, and ISO 4017 dimensional and material standards
• 30 mm hex drive accepts standard metric wrenches and sockets
• Bright, uncoated finish — no additional surface treatment required
• Metric thread standard, M20 x 2.50 pitch, compatible with metric tapped holes and nuts

Compatibility

Designed for use with M20 x 2.50 metric tapped holes and standard metric hex nuts conforming to DIN 934 or equivalent ISO specifications. Suitable as a direct replacement in assemblies calling for DIN 933, EN 24017, or ISO 4017 compliant fasteners in Grade A4 stainless steel.

Installation Notes

Installation is typically performed by millwrights, maintenance mechanics, or pipefitters using a standard 30 mm metric wrench or socket. Follow equipment manufacturer torque specifications for M20 Grade A4 stainless fasteners to avoid galling, which is a known risk with stainless hardware; apply an anti-seize compound to the threads before installation to reduce this risk. Inspect mating threads for cleanliness and proper engagement before final torque. Consult applicable mechanical or structural codes when this fastener is used in load-bearing or pressure-boundary assemblies.