Holo-krome 86057 Button Cap Screw M10x1.50 25mm Grade 12.9

Product Description

The HOLO-KROME 86057 is a metric button socket cap screw designed for high-strength fastening applications where a low-profile head is required. It features an M10x1.50 thread size with a 25mm length under head and is fully threaded. The hex socket drive accepts a 6mm hex key for installation and removal. Manufactured from Grade 12.9 alloy steel with a black oxide finish, this fastener delivers tensile strength and corrosion resistance suitable for demanding mechanical assemblies. Hardness is rated at 38 HRC. Licensed HVAC, plumbing, and mechanical contractors as well as industrial maintenance technicians commonly use fasteners of this specification in equipment assembly and service work.

The HOLO-KROME 86057 is suited for metric fastening applications in mechanical equipment, enclosures, brackets, and structural assemblies where a low-profile button head is preferable over a standard cap head. The black oxide finish provides mild corrosion resistance in dry or lightly oiled environments. This screw conforms to ANSI/ASME B18.3 and ASTM F835 fastener standards and carries a right-hand thread with a 4G and 6G thread fit class, making it compatible with standard metric tapped holes in that class range.

Key Features

• M10x1.50 fully threaded metric thread for secure engagement in standard metric tapped holes
• Grade 12.9 alloy steel construction rated at 38 HRC hardness for high-strength applications
• Low-profile button head at 5.5mm head height and 17.5mm head diameter reduces interference in tight assemblies
• Black oxide finish provides mild corrosion resistance and a clean appearance
• 6mm hex socket drive for positive torque transfer with a standard hex key or socket bit
• Conforms to ANSI/ASME B18.3 and ASTM F835 standards

Compatibility

Designed as a standard metric replacement or assembly fastener for applications requiring an M10x1.50 button socket cap screw meeting ANSI/ASME B18.3 and ASTM F835 specifications with thread fit class 4G or 6G.

Installation Notes

Installation should be performed by qualified mechanical, HVAC, or maintenance technicians familiar with metric fastener torque requirements for Grade 12.9 hardware. Use a properly sized 6mm hex key or socket bit to avoid rounding the drive recess. Ensure the mating tapped hole is clean and free of debris before installation. Do not mix metric and imperial hardware in the same assembly.