Value Collection D39105 Hex Head Cap Screw 1/2-13x1-1/4 Gr8

Product Description

The VALUE COLLECTION D39105 is a fully threaded hex head cap screw designed for high-strength fastening applications in mechanical, structural, and industrial assembly work. Sized at 1/2-13 x 1-1/4 inches, it carries a Grade 8 steel rating, making it suitable for joints that demand elevated tensile and shear strength. The zinc yellow dichromate finish provides a layer of corrosion resistance while also serving as a visual identifier for the Grade 8 classification. Compliance with ASME B18.2.1 ensures dimensional consistency across the thread form and head geometry. Machinists, millwrights, fabricators, and maintenance technicians typically install this fastener wherever a fully threaded, high-strength inch-series hex cap screw is required.

This screw is used across a broad range of trade and industrial settings, including HVAC equipment mounting, mechanical room hardware, pump and motor bases, electrical panel supports, and general structural assemblies. The 1/2-13 UNC thread form is one of the most common inch-series thread sizes in North American trade work, making this screw a frequent choice for repair, replacement, and original assembly. It is sold individually with a minimum order quantity of 25 pieces.

Key Features

• Grade 8 steel construction for high tensile strength in demanding fastening applications
• Fully threaded shank along the 1-1/4 inch length under head
• 1/2-13 UNC thread form, the most widely used coarse-thread inch series at this diameter
• Zinc yellow dichromate finish for corrosion resistance and Grade 8 visual identification
• Meets ASME B18.2.1 dimensional standard for hex head cap screws
• Minimum order quantity of 25 pieces per purchase

Compatibility

Designed as a standard inch-series hex head cap screw suitable for any application calling for a 1/2-13 UNC fully threaded fastener with Grade 8 strength and zinc yellow dichromate finish per ASME B18.2.1.

Installation Notes

Install using a standard hex wrench or socket set sized for a 1/2-13 hex head cap screw. Ensure mating threads are clean and free of debris before installation. Torque to the specification required by the joint design engineer or equipment manufacturer — do not substitute a torque value not provided in the equipment documentation. Grade 8 fasteners should not be replaced with lower-grade hardware when the application specifies Grade 8.