

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The VALUE COLLECTION 643691PR is a metric hex head cap screw designed for general-purpose bolted assemblies requiring a strong, fully threaded fastener. Manufactured to Grade 8.8 steel, this screw delivers reliable tensile strength for structural and mechanical applications across a range of industries. The M12 x 1.75 thread pitch and 130 mm length under head make it suitable for medium-to-heavy fastening tasks. It carries an uncoated (bright) finish and conforms to DIN 933 and ISO 4017 standards. Installation is performed with a 19 mm hex wrench or socket. Weight is 0.247 pounds per unit.
This screw is used in metal fabrication, machinery assembly, construction equipment, and general industrial applications where metric fasteners meeting DIN 933 and ISO 4017 specifications are required. The fully threaded shank allows engagement along the entire fastener length, making it well suited for through-bolt configurations and applications where maximum thread engagement is needed. It is appropriate for both OEM assembly and MRO replacement use across manufacturing and maintenance environments.
Designed as an OEM-style and MRO replacement hex head cap screw for metric fastener applications conforming to DIN 933 and ISO 4017 specifications with an M12 x 1.75 thread and 130 mm length under head.
Installation is typically performed by maintenance technicians, millwrights, or assemblers using a 19 mm wrench or socket driver. Always ensure mating threads are clean and free of debris before installation. Follow applicable torque specifications for Grade 8.8 M12 fasteners as defined by the equipment manufacturer or relevant industry standards. Do not mix metric and standard fasteners in the same assembly, and inspect threads for damage before reuse.
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.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!