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The VALUE COLLECTION 403018PS is a fully threaded hex head cap screw designed for general-purpose fastening in mechanical, plumbing, HVAC, and electrical enclosure applications. Sized at 1/4-20 UNC with a 1-inch length under the head, this fastener meets ASME B18.2.1, ASTM A307, and SAE J429 standards, confirming consistent dimensional tolerances and tensile performance for Grade 2 steel. The zinc-plated finish provides basic corrosion resistance in indoor and sheltered environments. Installed with a 7/16-inch hex key or wrench, it is a staple fastener for equipment panels, brackets, and light structural connections across the trades.
This fastener is suited for residential and commercial applications where a standard 1/4-20 UNC fully threaded hex cap screw is specified. Common install scenarios include securing HVAC equipment panels, mounting electrical enclosures, assembling plumbing support brackets, and general light-duty structural assembly. The fully threaded shank allows engagement across the full 1-inch length, making it practical for thin-stock and through-bolt applications alike. Sold in multiples of 100, this screw is intended for stocking and service-truck inventory.
Designed as a standard 1/4-20 UNC hex head cap screw for use wherever a Grade 2 fully threaded fastener of this size is specified in mechanical, HVAC, plumbing, or electrical assembly applications.
Installation is performed with a 7/16-inch wrench or socket driver. De-energize electrical equipment and relieve any system pressure before fastening components in live HVAC, plumbing, or electrical systems. Follow applicable NEC, IPC, or IFGC guidelines for panel and equipment fastener requirements. Do not use in applications requiring Grade 5 or Grade 8 tensile performance without verifying load specifications against Grade 2 ratings.
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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