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The HOLO-KROME 76564 is a metric hex socket cap screw designed for high-strength fastening applications across industrial, mechanical, and structural assemblies. Sized at M24 x 3.00 with a 90 mm length under head (approximately 3.54 inches), the fastener is fully threaded and delivers consistent clamping force throughout the grip length. Manufactured from alloy steel to a 12.9 material grade, it meets the tensile and yield strength requirements of ISO 898-1, making it suited for demanding load-bearing joints. The black oxide coating provides a degree of corrosion resistance and reduces light reflection in service environments. Installation is driven by a hex socket, requiring an appropriately sized Allen key or hex bit driver.
This screw is appropriate for use in precision machinery, heavy equipment, tooling fixtures, hydraulic components, and structural steel assemblies where a high-strength metric fastener is specified. The M24 x 3.00 thread form is a standard coarse metric pitch, commonly called out in engineering drawings that reference DIN 912 or ISO 4762 socket head cap screw standards. Fully threaded construction makes it suitable for applications with thin or closely spaced mating surfaces requiring full thread engagement.
Designed as an OEM-style and aftermarket replacement or direct-specification hex socket cap screw conforming to ANSI B1.13M, DIN 912, and ISO 4762, fitting any M24 x 3.00 tapped hole requiring a 12.9 grade socket head cap screw.
Installation should be performed by qualified mechanical or industrial tradespeople familiar with metric fastener torque procedures. Always verify thread engagement depth and hole condition before installation, and ensure the mating tapped hole conforms to M24 x 3.00 tolerances. Lubrication of threads is commonly applied when torqueing to specification - consult the applicable engineering standard or equipment service documentation for torque values. Do not exceed the rated grade capacity of the fastener or mating material.
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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