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The HOLO-KROME 69370 is a metric low socket cap screw designed for applications where a standard-height cap screw head would interfere with adjacent components. Threaded M5x0.8 with a 16 mm length measured under the head, this fastener is manufactured from alloy steel at material grade 10.9, delivering high tensile strength in a compact head profile. The black oxide finish provides mild corrosion resistance and reduces light reflection in precision assemblies. Drive engagement is through a 4 mm hex socket. Installation requires a standard hex key or Allen driver. Mechanical technicians, millwrights, and equipment assemblers working on metric machinery are the primary installers.
This fastener suits metric mechanical assemblies where clearance above the fastener head is limited, such as machine tool fixtures, hydraulic component mounting, robotics frames, and precision equipment enclosures. The low-profile head at 3.50 mm height fits recessed counterbores and tight-clearance flanges where a standard socket cap head would protrude. The M5x0.8 coarse thread pitch is the standard metric coarse specification for 5 mm fasteners. Both fully threaded and partially threaded configurations are supported under this part number per the listed standards.
Designed as a metric replacement or service fastener for M5x0.8 threaded applications conforming to ANSI B1.13M and ISO 4762 standards in industrial machinery, precision equipment, and mechanical assemblies requiring a low-profile socket cap head.
Installation should be performed by a qualified mechanic or assembler familiar with metric fastener torque specifications for grade 10.9 alloy steel. De-energize and lock out any equipment before removing or installing fasteners on powered machinery. Use a properly sized 4 mm hex key or driver bit to avoid rounding the socket. Do not substitute an undersized driver, as socket damage will compromise removal and torque transfer.
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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