Value Collection R57001299 Hex Head Cap Screw 18-8 Ss

Product Description

The VALUE COLLECTION R57001299 is a partially threaded hex head cap screw designed for heavy-duty fastening applications across industrial, mechanical, and structural assemblies. Manufactured from 18-8 stainless steel with no additional coating, this fastener delivers solid corrosion resistance suitable for demanding environments. The screw measures 1-1/2 inches in diameter with 6 threads per inch on a UNC thread standard, and a length under head of 4-1/2 inches. At 1.5 pounds, the fastener is built for applications requiring high clamp load and dimensional stability. Partial threading allows for an unthreaded shank section that provides shear strength and precise clamping in bolted joints.

This hex head cap screw is suited for general industrial maintenance, machinery assembly, structural fabrication, and equipment installation where stainless steel fasteners are specified for corrosion-prone or hygiene-sensitive environments. The UNC thread form is widely used in North American mechanical and industrial applications. Machinists, millwrights, maintenance technicians, and contractors working on fabrication or equipment service will find this fastener applicable across a broad range of inch-measurement bolting tasks.

Key Features

• 18-8 stainless steel construction for corrosion resistance without a surface coating
• Partial threading provides an unthreaded shank for shear strength and accurate clamping
• UNC thread standard ensures broad compatibility with standard inch-system nuts and tapped holes
• 1-1/2-6 thread size with 4-1/2 inch length under head suits heavy structural and mechanical joints
• Hex head drive style accommodates standard wrenches and sockets for high-torque installation

Compatibility

Designed for use with standard 1-1/2-6 UNC inch-series nuts, washers, and tapped holes conforming to ASME B18.2.1 hex cap screw dimensional standards for partially threaded fasteners.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance technicians using calibrated torque wrenches sized for the hex head. De-energize and lock out all equipment before fastening or removing hardware in mechanical assemblies per OSHA lockout/tagout procedures. Apply a compatible anti-seize compound when installing stainless steel fasteners into stainless or aluminum threads to prevent galling. Inspect mating threads for cleanliness and proper thread class before assembly.