Value Collection D39355 3/8-24 X 1-1/4 in Grade 8 Cap Screw

Product Description

The Value Collection D39355 is a fully threaded hex head cap screw engineered for high-strength fastening applications. Manufactured from Grade 8 steel and finished with a zinc yellow dichromate coating, this fastener delivers superior tensile strength and corrosion resistance compared to lower-grade alternatives. The 3/8-24 UNF thread pattern provides fine-thread engagement suited for applications requiring precise clamping force and vibration resistance. With a 1-1/4-inch length under head and full threading along the shank, it is well suited for through-bolting or deep-thread applications in metal assemblies. Tradespeople and mechanical technicians working on equipment, brackets, or structural assemblies will find this screw meets demanding load requirements.

This cap screw is used in industrial, mechanical, and trade applications where Grade 8 strength is specified. The fine UNF thread makes it a common choice for automotive, HVAC equipment frames, electrical enclosures, and general mechanical assemblies where vibration or dynamic loading is a concern. The zinc yellow dichromate finish adds a layer of corrosion protection suitable for indoor and light-duty outdoor environments. Sold individually with a minimum order quantity of 25 pieces, this fastener fits standard hex drive tooling.

Key Features

• Grade 8 steel construction provides high tensile and proof load strength
• Zinc yellow dichromate finish offers corrosion resistance and visual identification of high-strength grade
• 3/8-24 UNF fine thread for secure engagement and vibration resistance
• Fully threaded shank maximizes thread engagement length
• Meets ASME B18.2.1 and SAE J429 standards for dimensional and mechanical conformance
• Standard hex head accepts common wrenches and sockets for fast installation

Compatibility

Designed as a standard UNF inch-series hex head cap screw compatible with any 3/8-24 tapped hole or nut conforming to ASME B18.2.1 and SAE J429 specifications.

Installation Notes

Installation should be performed by a qualified mechanic or tradesperson using a calibrated torque wrench sized for 3/8-inch hex fasteners. Ensure mating threads are clean and free of debris before installation. Do not mix UNF and UNC thread patterns in the same tapped hole. Follow the applicable equipment manufacturer torque specifications and any relevant industry standards for the assembly being serviced.