Value Collection BDNA-MP92330 Hex Head Cap Screw 5/16-18x4

Product Description

The VALUE COLLECTION BDNA-MP92330 is a 5/16-18 hex head cap screw measuring 4 inches in length under the head, manufactured from 18-8 stainless steel for reliable corrosion resistance in demanding environments. The fastener uses a Unified National Coarse (UNC) thread standard, making it a common choice across mechanical, plumbing, HVAC bracket, and light structural assembly applications. The 1/2-inch hex drive size accommodates standard wrenches and sockets. At 0.01 pounds per piece, the screw is lightweight without sacrificing thread engagement strength. Tradespeople and maintenance technicians working with stainless fasteners will find this screw suitable for both indoor and outdoor service conditions.

This hex head cap screw is used in a broad range of trade and industrial assembly applications where corrosion resistance is a priority. Typical scenarios include HVAC equipment mounting, plumbing fixture attachment, electrical panel support hardware, and general mechanical assembly in environments exposed to moisture or mild chemicals. The 18-8 stainless steel grade offers a practical balance of strength and corrosion performance without the cost of higher-alloy stainless grades. The UNC thread pattern allows straightforward pairing with standard nuts, threaded inserts, and tapped holes sized for 5/16-18 fasteners.

Key Features

• 18-8 stainless steel construction resists corrosion in wet and outdoor service environments
• 5/16-18 UNC thread engages standard tapped holes and nuts without adapters
• 4-inch length under the head provides extended thread engagement for thicker assemblies
• 1/2-inch hex drive compatible with common wrenches and sockets
• Inch system of measurement for straightforward use with standard imperial hardware

Compatibility

Designed as a standard UNC hex head cap screw compatible with any application requiring a 5/16-18 threaded fastener in inch dimensions. Mates with standard 5/16-18 nuts, threaded inserts, and tapped holes per UNC specifications.

Installation Notes

Installation is performed by hand and with a standard 1/2-inch wrench or socket driver. Verify that the mating thread is clean and free of debris before installation to avoid cross-threading. When fastening into dissimilar metals such as aluminum, consider using a compatible anti-seize compound to prevent galvanic corrosion. Always follow the applicable equipment manufacturer guidelines and relevant codes for fastener torque and joint design.