Value Collection HC3XX20130 M20 Hex Cap Screw Grade 316

Product Description

The VALUE COLLECTION HC3XX20130 is a fully threaded hex head cap screw engineered to metric specifications for demanding fastening applications. Sized M20 x 2.50 with a 130 mm length under head, this fastener is manufactured from Grade 316 austenitic stainless steel meeting Grade A4 classification. The bright, uncoated finish exposes the natural corrosion resistance of the alloy. With a 30 mm hex drive, it is ready for standard hex tooling. Compliant with DIN 933, EN 24017, and ISO 4017 standards, this screw is suited for structural, industrial, and marine-grade assembly work where dimensional accuracy and material traceability matter.

This fastener is appropriate for use in industrial machinery, marine hardware, chemical processing equipment, and outdoor structural assemblies where exposure to moisture, salt, or corrosive environments demands a high-alloy stainless fastener. The M20 coarse thread pitch and full-length threading make it compatible with standard metric hex nuts and threaded plates across a wide range of fabrication and maintenance scenarios. Mechanical contractors, millwrights, and industrial maintenance technicians commonly specify this size for flanged connections, equipment mounting, and structural steel work.

Key Features

• Grade 316 austenitic stainless steel for superior corrosion resistance in wet and chemically aggressive environments
• Grade A4 classification per ISO 3506, confirming alloy composition and mechanical performance
• Fully threaded shaft for maximum thread engagement across the full 130 mm length under head
• 30 mm hex drive compatible with standard metric wrenches and sockets
• Compliant with DIN 933, EN 24017, and ISO 4017 dimensional standards
• Bright, uncoated finish with no plating that could introduce contamination or dimensional variation

Compatibility

Designed as a metric-standard hex head cap screw for use with M20 x 2.50 threaded nuts, inserts, and tapped assemblies conforming to DIN 933, EN 24017, and ISO 4017 specifications.

Installation Notes

Installation should be performed by a qualified mechanic or millwright using a calibrated torque wrench and appropriate metric hex tooling. Ensure mating threads are clean and free of debris before assembly. Do not mix metric and unified fasteners. When installing in stainless-to-stainless applications, apply an anti-seize compound to reduce the risk of galling during tightening.