Holo-krome 760009988 Hex Socket Cap Screw M36x4 580mm

Product Description

The HOLO-KROME 760009988 is a metric hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. It carries an M36 x 4.00 thread size with a 580 mm length under head, which is approximately 22.83 inches. Manufactured from alloy steel to material grade 12.9, it delivers high tensile strength suitable for demanding load-bearing connections. The black oxide finish provides a degree of corrosion resistance and reduces light reflection in precision assemblies. The hex socket drive requires a matching hex key or Allen-style driver for installation. Licensed millwrights, machinists, and mechanical contractors are the typical installers for fasteners of this size and grade.

This screw is suited for heavy industrial equipment, large-format machinery, structural steel fabrication, and high-load mechanical assemblies where grade 12.9 alloy steel fasteners are specified. The M36 coarse thread pitch of 4.00 mm is standard for this diameter class and is commonly called out in engineering drawings and OEM equipment specifications requiring ANSI B1.13M or ISO 4762 compliance. Its length and diameter make it appropriate for deep-reach bolted joints in frames, presses, and large-bore flanged connections.

Key Features

• M36 x 4.00 thread size with 580 mm (approximately 22.83 inches) length under head
• Alloy steel construction at material grade 12.9 for high tensile and proof load capacity
• Black oxide finish for mild corrosion resistance and surface uniformity
• Hex socket drive for high-torque installation with standard hex key tooling
• Meets ANSI B1.13M, ISO 4762, and ISO 898-1 fastener standards

Compatibility

Designed as an OEM-style and aftermarket replacement hex socket cap screw for industrial machinery and structural assemblies specifying an M36 x 4.00 grade 12.9 alloy steel fastener per ISO 4762 or ANSI B1.13M.

Installation Notes

Installation of large-diameter grade 12.9 socket cap screws should be performed by a qualified millwright or mechanical technician using a calibrated torque wrench and the correct hex key size for an M36 socket head. Always de-energize, depressurize, or lock out the equipment before fastener service in accordance with applicable OSHA lockout/tagout procedures. Do not substitute lower-grade fasteners in joints engineered for grade 12.9. Lubrication of threads and seating surfaces is generally recommended before torquing to achieve accurate clamp load, but follow the equipment manufacturer specification for the specific joint.