Value Collection 644139PR M12x1.75x70mm Hex Cap Screw Gr8.8

Product Description

The VALUE COLLECTION 644139PR is a metric hex head cap screw engineered for general industrial and mechanical fastening applications. It features an M12 x 1.75 thread profile with a 70 mm length under the head and a 19 mm hex drive size. Manufactured from Grade 8.8 steel with a bright uncoated finish, this fastener delivers reliable tensile strength for structural and machine assembly work. The partially threaded shank conforms to DIN 931 and ISO 4014 standards, making it a drop-in fit wherever those specifications are called out. Installation is performed by maintenance technicians, millwrights, and mechanical contractors working on equipment frames, fixtures, and structural connections.

This cap screw is suited for metric-standard fastening in manufacturing, construction, and equipment maintenance environments. The partial threading is appropriate for applications where the unthreaded shank must pass through a clearance hole before engaging a threaded bore or nut. Its Grade 8.8 classification indicates a medium-high strength carbon steel fastener, appropriate for general load-bearing bolted joints that do not require alloy-grade or hardened-steel specifications. Sold individually, with a minimum order quantity of 50 pieces.

Key Features

• M12 x 1.75 metric thread size, partially threaded shank per DIN 931 and ISO 4014
• 70 mm length under head for deep engagement in structural and machine assemblies
• Grade 8.8 steel construction for reliable tensile and proof load performance
• 19 mm hex drive size compatible with standard metric wrenches and sockets
• Bright uncoated finish suitable for dry or lightly oiled indoor service environments
• Conforms to DIN 931 and ISO 4014 international fastener standards

Compatibility

Designed as a standard metric replacement fastener for any bolted joint specifying an M12 x 1.75 x 70 mm partially threaded hex head cap screw per DIN 931 or ISO 4014.

Installation Notes

Installation is typically performed by millwrights, maintenance mechanics, or mechanical contractors using a standard metric wrench or socket set. Verify the mating thread is clean and free of damage before assembly. Apply thread lubricant or thread-locking compound only as specified by the equipment manufacturer or applicable fastener torque specifications. Do not exceed the rated proof load for Grade 8.8 fasteners in safety-critical joints without consulting a qualified engineer.