Value Collection R57001300 Hex Head Cap Screw 18-8 Ss

Product Description

The VALUE COLLECTION R57001300 is a partially threaded hex head cap screw designed for heavy-duty fastening applications in industrial, mechanical, and structural assemblies. Sized at 1-1/2-6 UNC with a 5-inch length under head, this fastener is manufactured from 18-8 stainless steel and left uncoated, delivering solid corrosion resistance without any additional surface treatment. The coarse UNC thread form and partial threading make it well-suited for applications where a smooth shank section is needed between the bearing surface and the threaded engagement zone. At 2 pounds, it is a substantial fastener appropriate for high-load connections.

This screw is used in a wide range of trade and industrial settings including HVAC equipment mounting, pump and compressor assemblies, pipe flange connections, and general structural fastening where corrosion resistance is a priority. The 18-8 stainless steel grade performs reliably in wet, outdoor, and mildly corrosive environments. Plumbers, pipefitters, HVAC technicians, and general mechanical contractors commonly use fasteners of this type when working with stainless or galvanized assemblies where galvanic compatibility and corrosion resistance matter.

Key Features

• 1-1/2-6 UNC coarse thread for high clamping force in heavy-duty assemblies
• Partial threading allows a smooth shank section for shear-load applications
• 18-8 stainless steel construction provides corrosion resistance in wet and outdoor environments
• Uncoated finish maintains material integrity without plating variables
• 5-inch length under head accommodates thick flanges, brackets, or stacked material
• Inch measurement system with standard hex head for use with common wrench sizes

Compatibility

Designed as a standard UNC hex head cap screw for use in inch-system fastener applications requiring a 1-1/2-6 thread size and 5-inch grip length in stainless steel construction.

Installation Notes

Installation should be performed by a qualified mechanic, pipefitter, or HVAC technician using the appropriate hex wrench or socket sized for a 1-1/2-inch hex head fastener. Always verify thread engagement depth and mating thread condition before installation. Do not mix stainless steel fasteners with incompatible metals in environments prone to galvanic corrosion without appropriate isolation. Follow applicable mechanical or structural codes for torque and fastener spacing requirements.