Value Collection 30757 Hex Head Cap Screw 1/2-13 X 3/4 in

Product Description

The VALUE COLLECTION 30757 is a 1/2-13 x 3/4 inch hex head cap screw machined from silicon bronze, supplied in a 10-piece pack. The 1/2-13 thread designation indicates a 1/2-inch nominal diameter with 13 threads per inch on a Unified National Coarse (UNC) thread form. Silicon bronze offers strong corrosion resistance in wet, marine, and chemically active environments, making this fastener a reliable choice where standard steel hardware would corrode prematurely. The 3/4-inch hex drive allows installation with common wrenches and sockets. Length under head measures 3/4 inches. This screw is appropriate for mechanical assemblies, plumbing connections, marine hardware, and electrical grounding applications where corrosion resistance is required.

This hex head cap screw is suited for residential and light commercial trade applications including plumbing, HVAC equipment mounting, pool and spa equipment assembly, and marine installations. Silicon bronze fasteners are a standard choice in environments exposed to moisture, saltwater, or mild chemical contact. The UNC thread form is compatible with standard tapped holes and nuts in inch-based assemblies. Each order includes 10 screws, appropriate for small-volume service work or replacement hardware needs.

Key Features

• 1/2-13 UNC thread — compatible with standard inch-based tapped holes and nuts
• 3/4 inch length under head for precise fit in shallow-clearance assemblies
• Silicon bronze construction provides corrosion resistance in wet and marine environments
• 3/4 inch hex drive works with standard wrenches and sockets
• Sold in a 10-piece pack for service and repair use

Compatibility

Designed as an OEM-style replacement or service fastener for inch-based mechanical assemblies requiring a 1/2-13 UNC hex head cap screw in silicon bronze.

Installation Notes

Installation is appropriate for plumbers, HVAC technicians, electricians, and pool service professionals working with inch-threaded hardware. De-energize or shut off all relevant systems before replacing fasteners on live equipment. Use a properly sized wrench or socket to avoid rounding the hex head. Do not over-torque silicon bronze fasteners, as the alloy has lower yield strength than carbon steel hardware of the same size.