Value Collection 644178PS M16 X 2 Hex Cap Screw Grade 8.8

Product Description

The VALUE COLLECTION 644178PS is a metric hex head cap screw rated to Grade 8.8 steel construction, designed for general industrial and mechanical fastening applications. This screw features an M16 x 2.00 thread size with a 100 mm length under head and is partially threaded, conforming to DIN 931 and ISO 4014 standards. The bright uncoated finish leaves the base steel exposed, making it suitable for environments where post-installation coating or galvanic considerations are managed at the assembly level. Millwrights, maintenance technicians, and mechanical assemblers typically install fasteners of this type in structural and equipment mounting applications.

This cap screw is used in metric fastening applications across industrial machinery, structural assemblies, and equipment frames where an M16 partially threaded hex head fastener is specified. The 24 mm hex drive accommodates standard metric wrenches and sockets. Conformance to DIN 931 and ISO 4014 ensures dimensional interchangeability with other metric fasteners meeting those standards, making it a practical fit for both OEM assembly and field maintenance scenarios in manufacturing, fabrication, and heavy equipment service.

Key Features

• Grade 8.8 steel construction provides a medium-high strength rating suitable for demanding mechanical assemblies
• M16 x 2.00 thread with 100 mm length under head for deep fastening applications
• Partially threaded shank per DIN 931 and ISO 4014 for accurate shoulder bearing in clearance-hole applications
• 24 mm hex head accommodates standard metric box, open-end, and socket wrenches
• Bright uncoated finish preserves dimensional tolerances without added coating thickness

Compatibility

Designed as a standard metric replacement or assembly fastener for applications requiring an M16 x 2.00 partially threaded hex head cap screw conforming to DIN 931 or ISO 4014.

Installation Notes

Installation should be performed by a qualified millwright, mechanic, or maintenance technician using a calibrated torque wrench sized for a 24 mm hex fastener. Always consult the equipment manufacturer's torque specifications for M16 Grade 8.8 fasteners before final tightening. Inspect mating threads for damage or contamination before installation. Do not substitute thread lubricants or anti-seize compounds without accounting for the effect on final clamp load.