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The VALUE COLLECTION 815973PS is a fully threaded hex head cap screw manufactured from Grade 8.8 steel with a zinc-plated finish. It features an M20 x 2.50 thread size with a 100 mm length under head and a 30 mm hex drive. Grade 8.8 designates medium-high strength carbon steel with a minimum tensile strength of 800 MPa, making it suitable for structural and mechanical fastening applications across industrial and trade environments. The zinc plating provides baseline corrosion resistance. Machinists, millwrights, pipefitters, and general industrial maintenance technicians are the primary installers of this fastener.
This screw is designed for metric fastening applications where a fully threaded M20 coarse-pitch fastener is required. Common uses include machine frames, equipment mounting, structural steel connections, and heavy mechanical assemblies. It conforms to DIN 933 and ISO 4017 standards, which define dimensions and mechanical properties for fully threaded hex head cap screws. Suitable for residential, commercial, and industrial maintenance and fabrication work where a metric Grade 8.8 fastener is specified.
Designed as a standard DIN 933 and ISO 4017 compliant fully threaded hex head cap screw for use in any application requiring an M20 x 2.50 metric coarse-thread fastener with Grade 8.8 mechanical properties.
Installation is performed by qualified machinists, millwrights, or maintenance technicians using a metric wrench or socket sized to the 30 mm hex. Always de-energize and lock out equipment before performing fastener installation or replacement on mechanical assemblies. Verify mating thread condition and ensure proper thread engagement depth before torquing. Follow applicable equipment manufacturer specifications and relevant mechanical codes for final torque values, as none are specified for this part.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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