Value Collection BDNA-A410005 M4 Hex Cap Screw 316 Ss

Product Description

The VALUE COLLECTION BDNA-A410005 is a fully threaded hex head cap screw sized M4 x 0.70 x 20 mm, manufactured from Grade 316 Austenitic Grade A4 stainless steel with an uncoated finish. Conforming to DIN 933, this fastener features a 7 mm hex drive and full threading along the 20 mm length under the head. Grade 316 stainless offers superior corrosion resistance compared to Grade 304, making it well suited for wet, chemical, or marine-adjacent environments. Installed by maintenance technicians, millwrights, plumbers, and mechanical contractors, this screw is a standard metric fastener used across a wide range of light-duty assemblies.

This hex head cap screw is appropriate for general mechanical assembly, equipment maintenance, and structural fastening applications where metric threading and corrosion-resistant material are required. Its DIN 933 compliance makes it interchangeable with other metric fasteners built to the same standard, fitting residential, commercial, and light industrial service situations. Minimum order quantity is 25 pieces.

Key Features

• Grade 316 Austenitic Grade A4 stainless steel for strong corrosion resistance in harsh or wet environments
• Fully threaded M4 x 0.70 metric thread profile along the full 20 mm shank length
• DIN 933 standard compliance for reliable cross-source interchangeability
• 7 mm hex drive for use with standard metric wrenches and sockets
• Uncoated finish — no plating to chip, flake, or interfere with dimensional tolerances

Compatibility

Designed as a standard DIN 933 metric hex head cap screw suitable for M4 x 0.70 threaded holes in mechanical assemblies, equipment frames, and fixtures requiring Grade 316 stainless steel fasteners.

Installation Notes

Install using a standard 7 mm metric wrench or socket driver. Ensure mating threads are clean and free of debris before driving. Stainless steel fasteners are susceptible to galling — apply an appropriate anti-seize compound when torquing into stainless or aluminum tapped holes. Follow applicable mechanical codes and equipment manufacturer specifications for torque values.