Value Collection 203043B Hex Head Cap Screw 5/8-11 Unc

Product Description

The VALUE COLLECTION 203043B is a hex head cap screw designed for secure mechanical fastening in demanding environments. Manufactured from Grade 316 stainless steel, this fastener delivers strong corrosion resistance, particularly in marine, chemical, and high-moisture applications. The screw measures 5/8-11 thread size with a 1-1/4 inch length under the head and follows the UNC thread standard. The 15/16 inch hex head accepts standard hex wrenches and sockets for reliable torque application. Machinists, pipefitters, millwrights, and general maintenance professionals install this type of fastener across a wide range of industrial and structural assemblies.

This cap screw is suited for use in residential, commercial, and industrial settings where stainless steel fasteners are specified. Common applications include pipe flanges, equipment mounting, marine hardware, food-processing machinery, chemical handling equipment, and corrosive outdoor environments. The UNC thread form is the standard coarse-thread designation used across most North American mechanical assemblies, making this screw widely compatible with standard tapped holes and hex nuts of matching thread specification.

Key Features

• Grade 316 stainless steel construction for superior corrosion resistance in marine and chemical environments
• 5/8-11 UNC coarse thread for broad compatibility with standard North American tapped holes
• 1-1/4 inch length under head suitable for moderate-depth fastening applications
• 15/16 inch hex head accepts standard hex sockets and wrenches
• Inch measurement system consistent with common North American tooling and hardware specifications

Compatibility

Designed as an OEM-style replacement or direct-use fastener for assemblies requiring a 5/8-11 UNC hex head cap screw in Grade 316 stainless steel.

Installation Notes

Install using a properly sized 15/16 inch hex socket or open-end wrench. Ensure the mating tapped hole or nut is also rated for 5/8-11 UNC thread and is free of debris before installation. De-energize and lock out any equipment before fastener replacement on live machinery per applicable OSHA lockout/tagout procedures. Avoid mixing stainless steel fasteners with dissimilar metals in environments where galvanic corrosion is a concern.