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The HOLO-KROME 760005970 is a metric hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. It features an M30 x 3.50 thread profile with a 260 mm length under head, manufactured from alloy steel at material grade 12.9 - one of the highest tensile strength classifications available for metric fasteners. The black oxide finish provides a degree of corrosion resistance and reduces light reflection on installed hardware. This screw is driven with a hex socket tool and is suited for use wherever a recessed-drive, high-torque fastener is required.
This screw is used in heavy equipment, machine frames, hydraulic assemblies, tooling fixtures, and other applications that demand a high-clamping-force metric fastener. The M30 thread diameter and 260 mm body length make it appropriate for thick section joints and through-bolt configurations. Industrial maintenance technicians, machine builders, and millwrights are the typical installers. It conforms to ANSI B1.13M, ISO 4762, and ISO 898-1 standards, making it compatible with metric fastener specifications across a wide range of engineering drawings and OEM service requirements.
Designed as a standard metric hex socket cap screw conforming to ISO 4762 and ANSI B1.13M, suitable for any application calling for an M30 x 3.50 grade 12.9 alloy steel socket head cap screw.
Installation requires a calibrated torque wrench and the correct hex socket bit sized for M30 socket head cap screws. Verify mating thread condition and lubricate threads as specified by the equipment manufacturer before torquing. Power down and de-energize all equipment before fastener service on active machinery. Grade 12.9 fasteners should not be substituted with lower-grade hardware, as the joint design may depend on the elevated proof load of this material grade.
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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