Holo-krome 64070 Button Socket Cap Screw 3/8-16

Product Description

The HOLO-KROME 64070 is a button socket cap screw designed for applications requiring a low-profile head with high clamping strength. It features a 3/8-16 UNC thread and measures 7/8 inches in length under the head. The button head style reduces snag risk in close-clearance assemblies while the hex socket drive allows controlled torque application in tight spaces. Manufactured from alloy steel with a black oxide finish, it carries a hardness rating of 38 HRC and meets ANSI/ASME B18.3 and ASTM F835 standards. This fastener is fully threaded with a 3A thread fit class and right-hand thread direction, making it a reliable choice for precision mechanical assemblies.

This screw is used in general industrial, mechanical, and structural applications where a flush or recessed fastener profile is required. The black oxide finish provides mild corrosion resistance and reduces light reflection, making it suitable for use in machinery, fixtures, tooling, and fabricated assemblies. It is installed by machinists, millwrights, maintenance technicians, and fabricators using a 7/32 inch hex key. The minimum order quantity is 50 pieces per order.

Key Features

• Button head profile for low-clearance and snag-resistant installations
• 3/8-16 UNC fully threaded, 3A fit class, right-hand thread direction
• 7/32 inch hex socket drive for use with standard Allen or hex key tools
• Alloy steel construction with 38 HRC hardness for high-load applications
• Black oxide finish for mild corrosion resistance and reduced reflectivity
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as an OEM-style replacement or direct-use button socket cap screw for standard 3/8-16 UNC tapped holes in industrial machinery, fixtures, and fabricated assemblies.

Installation Notes

Installation requires a 7/32 inch hex key or Allen driver. Ensure the mating tapped hole is clean and free of debris before driving the screw. Do not exceed the rated torque capacity for the thread size and material being fastened. This fastener should be installed by qualified mechanical or maintenance personnel following applicable industry standards.