Value Collection HC3XX20055 Hex Head Cap Screw M20 X 2.50

Product Description

The VALUE COLLECTION HC3XX20055 is a fully threaded metric hex head cap screw designed for use in applications demanding superior corrosion resistance. Manufactured from Grade 316 austenitic stainless steel (Grade A4 to DIN 933), this fastener features an M20 x 2.50 mm thread with a 55 mm length measured under the head. The 30 mm hex drive accommodates standard metric wrench sizes. It arrives bright and uncoated, preserving the natural corrosion-resistant properties of 316 stainless. Licensed tradespeople and maintenance professionals rely on this screw where exposure to moisture, chemicals, or marine environments is a concern.

This screw suits structural and mechanical assembly work in residential, commercial, and industrial settings. Its Grade 316 stainless steel construction makes it well suited for marine hardware, chemical processing equipment, food service installations, HVAC equipment frames, and plumbing infrastructure where chloride exposure or wet conditions are present. The DIN 933 standard ensures dimensional consistency across compatible tooling and hardware. Each unit is sold individually, making it practical for single-fastener replacement or small-quantity service work.

Key Features

• Grade 316 austenitic stainless steel (A4) for high corrosion resistance in wet and chloride-rich environments
• Fully threaded M20 x 2.50 mm metric thread per DIN 933 standard
• 55 mm length under head for consistent depth control in structural assemblies
• 30 mm hex drive size compatible with standard metric wrenches and sockets
• Bright, uncoated finish — no secondary treatment that could compromise base material performance
• Sold as individual unit with minimum order quantity of 1

Compatibility

Designed as a DIN 933 compliant M20 x 2.50 metric hex head cap screw suitable for use with any standard M20 hex nut, threaded insert, or tapped hole conforming to metric thread specifications.

Installation Notes

Installation is performed by mechanics, plumbers, HVAC technicians, or electricians depending on the application. Use a 30 mm metric open-end wrench or socket to drive this fastener to the torque specification required by the assembly design. Ensure mating threads are clean and free of debris before installation to prevent galling, which is a common risk with stainless steel fasteners — consider applying an anti-seize compound appropriate for stainless steel. Always de-energize and depressurize any system before fastener replacement on live equipment.