Value Collection VS1168PS Hex Head Cap Screw 1/2-13 X 1-1/2 in

Product Description

The VALUE COLLECTION VS1168PS is a hex head cap screw designed for fastening applications that demand corrosion resistance in harsh or marine environments. Manufactured from silicon bronze alloy grade C651, this screw delivers strong resistance to saltwater, moisture, and many chemicals. It features a 1/2-13 UNC fully threaded shank at 1-1/2 inches length under head and meets ASME B18.2.1 dimensional standards. The bright, uncoated finish keeps the material properties intact without added surface treatments. Mechanical contractors, marine fabricators, plumbers, and industrial maintenance technicians regularly specify silicon bronze fasteners where galvanic compatibility or seawater exposure is a primary concern.

This cap screw is suited for use in marine construction, coastal HVAC and plumbing installations, pump assemblies, and any application where steel fasteners would corrode prematurely. The 1/2-13 UNC thread form is a standard coarse-thread profile, making it compatible with widely available nuts, inserts, and tapped holes machined to ASME B18.2.1 specifications. The 3/4-inch hex drive accommodates standard open-end, box-end, or socket wrenches common in trade use. Sold individually, this fastener is appropriate for both single-replacement and small-volume assembly work.

Key Features

• Silicon bronze alloy grade C651 for superior corrosion resistance in marine and wet environments
• 1/2-13 UNC fully threaded shank, 1-1/2 inches length under head
• Meets ASME B18.2.1 dimensional standard for hex head cap screws
• 3/4-inch hex drive fits standard wrenches and sockets
• Bright, uncoated finish — no added coating to interfere with galvanic compatibility
• Inch measurement system, coarse thread standard (UNC)

Compatibility

Designed as an OEM-style or replacement hex head cap screw for any application requiring a 1/2-13 UNC fully threaded fastener in silicon bronze, conforming to ASME B18.2.1.

Installation Notes

Installation should be performed by a qualified mechanic, plumber, or marine fabricator familiar with bronze fastener handling. Always verify thread engagement depth and hole condition before driving the fastener. Use a calibrated torque wrench appropriate for the joint material to avoid galling, which silicon bronze is more susceptible to than steel — apply an anti-galling lubricant to the threads per the joint designer's specification. De-energize and depressurize any system before replacing fasteners on pressurized assemblies.