Value Collection C31853 Hex Head Lag Screw 3/8 X 4 in Ss

Product Description

The VALUE COLLECTION C31853 is a hex head lag screw designed for structural fastening applications in wood and composite materials. This screw features a 3/8-inch diameter and a 4-inch length under the head, providing deep thread engagement for load-bearing connections. Manufactured from Grade 18-8 stainless steel with an uncoated finish, it resists corrosion in wet, outdoor, and chemically active environments. Plumbers, HVAC technicians, and general trade contractors use lag screws like this one to secure equipment pads, pipe hangers, structural brackets, and support framing where corrosion resistance is required.

This lag screw is suited for both residential and light commercial applications where a large-diameter fastener is needed to anchor heavy components to wood framing or blocking. Typical installations include mounting HVAC equipment supports, securing plumbing strut channels, and attaching structural hardware to dimensional lumber. The hex head drive allows installation with a standard socket or impact driver, making it practical for field use without specialty tooling.

Key Features

• 3/8-inch diameter provides high load capacity for structural anchoring
• 4-inch length under head for deep thread engagement in dimensional lumber
• Grade 18-8 stainless steel construction resists corrosion in wet and outdoor environments
• Uncoated finish maintains dimensional accuracy and is compatible with stainless-appropriate anti-seize compounds
• Hex head drive accepts standard sockets and impact drivers for fast installation

Compatibility

Designed as a standard 3/8-inch hex head lag screw suitable for wood-based structural fastening applications in HVAC, plumbing, and general construction where corrosion-resistant hardware is specified.

Installation Notes

Lag screws of this diameter typically require a pilot hole to prevent wood splitting and to ensure proper seating — consult applicable building codes for pilot hole sizing requirements. A socket wrench or impact driver with the correct hex socket is required for installation. Do not overtighten, as stainless steel fasteners are susceptible to galling; applying an appropriate anti-seize compound to the threads before installation is standard practice.