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The VALUE COLLECTION R52001191 is a hex head lag screw designed for heavy-duty fastening applications in construction, mechanical, and trade service work. Manufactured from AISI 1006-1022 grade steel with a hot dipped galvanized finish, this screw measures 3/8 inches in diameter with a 5 inches length under head. The hex drive head accepts standard wrench or socket tooling, making it a practical choice for structural connections where corrosion resistance and reliable clamping force are required. It conforms to ASME B18.2.1 dimensional standards, ensuring consistent fitment across compliant applications.
This lag screw is suited for residential and commercial construction, HVAC equipment mounting, structural wood connections, and general trade fastening tasks where an externally driven, large-diameter wood screw is specified. The hot dipped galvanized coating provides corrosion protection in outdoor and high-moisture environments, including equipment pads, deck framing, and exterior mechanical support structures. Licensed tradespeople across plumbing, HVAC, and electrical disciplines commonly use lag screws of this type when securing equipment supports, brackets, and framing members.
Designed as an OEM-style replacement or direct-use lag screw for structural and mechanical fastening applications requiring a 3/8 inches hex head lag screw conforming to ASME B18.2.1 standards.
Installation is typically performed by licensed tradespeople or qualified contractors using a hex wrench, socket driver, or impact driver rated for the fastener size. Always pre-drill a pilot hole of appropriate diameter to prevent wood splitting and ensure proper thread engagement. Power down or de-energize any adjacent electrical or mechanical equipment before drilling into mounting surfaces. Follow applicable building codes and manufacturer structural requirements when specifying fastener size and pattern for load-bearing connections.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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