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The VALUE COLLECTION 644163PS is a metric hex head cap screw designed for general mechanical fastening applications requiring dimensional precision and consistent tensile strength. Manufactured from Grade 8.8 steel in a bright, uncoated finish, this fastener meets DIN 931 and ISO 4014 standards for partially threaded hex head bolts. The M16 x 2.00 thread profile paired with a 60 mm length under head makes it a practical choice for mid-load structural and machine assembly work. A 24 mm hex drive accommodates standard wrenches and impact tools. Installation is performed by millwrights, maintenance technicians, and mechanical assemblers across industrial and commercial settings.
This fastener is suited for metric assemblies in machinery, structural steel connections, equipment frames, and industrial fixtures where a partially threaded bolt is required to allow for a bearing surface or precise clamping length. The partial thread design is standard under DIN 931 and ISO 4014, making it interchangeable within those specification families. It is appropriate for use in both new assembly and maintenance-and-repair operations where metric fastener stock is maintained on-site.
Designed as a standard metric replacement or stock fastener for any assembly requiring a DIN 931 or ISO 4014 compliant M16 x 2.00 partially threaded hex head cap screw with a 60 mm length under head.
Installation is typically performed by mechanical assemblers or maintenance technicians using a 24 mm wrench, socket, or impact driver. Always verify mating thread condition and material compatibility before installation. Do not exceed the fastener grade rating by over-torquing; consult applicable engineering or equipment documentation for torque requirements specific to the joint. Uncoated fasteners should not be used in wet or corrosive environments without additional protective measures.
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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