Holo-krome 76217 Hex Socket Cap Screw M6x1 80mm

Product Description

The HOLO-KROME 76217 is a metric hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. It features an M6x1.00 thread with an 80 mm length under head and a partial threading configuration. Manufactured from alloy steel and finished with a black oxide coating, this screw meets material grade 12.9 — indicating exceptional tensile and proof load strength suitable for demanding clamping and torque requirements. The internal hex drive allows precise torque application with standard Allen keys or hex bit drivers. Machinists, millwrights, and mechanical assembly technicians are the primary installers.

This screw is suited for use in precision machinery, fixtures, tooling, and fabricated steel assemblies where high clamping force and dimensional accuracy are required. The M6 thread size and 80 mm under-head length make it a common choice for moderate-depth through-bolting and tapped-hole applications in both production and maintenance environments. The black oxide finish provides a mild level of corrosion resistance and reduces light reflection, which is useful in tooling and close-tolerance assembly work. This fastener is sold in minimum order quantities of 10.

Key Features

• M6x1.00 thread — standard metric coarse pitch for broad compatibility with tapped components
• 80 mm length under head with partial threading for full grip in through-bolt and blind-hole applications
• Alloy steel construction with 12.9 material grade for high tensile and proof load strength
• Black oxide finish for mild corrosion resistance and reduced surface reflectivity
• Internal hex (Allen) drive for precise, tool-accessible torque application in confined spaces
• Meets ANSI B1.13M, DIN 912, ISO 4762, and ISO 898-1 fastener standards

Compatibility

Designed as a standard metric hex socket cap screw for use in any tapped or through-hole application requiring an M6x1.00 thread and conforming to DIN 912 or ISO 4762 dimensional specifications.

Installation Notes

Installation is performed by machinists, millwrights, or mechanical technicians using a properly sized hex key or Allen bit driver. Always verify the mating thread is M6x1.00 and that the tapped depth or through-hole clearance is appropriate for the 80 mm length under head. Apply appropriate thread-locking compound or fastener lubricant per assembly specifications before torquing. Do not exceed the recommended torque value for grade 12.9 M6 fasteners as specified by the equipment manufacturer or applicable engineering standard.