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The VALUE COLLECTION SBRI03704000-050BX is a 3/8-16 x 4-inch round head slotted machine screw manufactured from Grade 2 steel with a zinc-plated finish. Sold in a box of 50, this fastener meets ASME B18.6.3 dimensional standards and is suited for general-purpose mechanical assembly. The round head profile offers a low-profile, finished appearance, while the slotted drive accommodates standard flat-blade screwdrivers. Length is measured under the head at 4 inches. The zinc plating provides basic corrosion resistance for indoor and light-exposure applications.
These machine screws are used across a wide range of trade and industrial applications including HVAC equipment assembly, electrical panel and enclosure work, plumbing fixture mounting, and general sheet metal or structural fastening where a 3/8-16 coarse thread pattern is specified. The inch-system threading and ASME B18.6.3 compliance make them a reliable choice when replacing OEM hardware on equipment that calls for standard unified coarse thread fasteners. No washer is included or integrated into the fastener design.
Designed as a general-purpose inch-system machine screw compatible with any tapped or through-hole application specifying a 3/8-16 UNC coarse thread and a minimum 4-inch fastener length.
Installation is performed with a flat-blade screwdriver sized to the slotted head; an impact driver with a slotted bit may be used at low torque settings to avoid cam-out or head damage. Always verify that the mating thread is clean and free of debris before driving the fastener. For structural or load-bearing assemblies, consult applicable codes and engineering specifications to confirm Grade 2 fasteners meet the required tensile and proof-load ratings. Power down or de-energize any equipment before accessing internal fasteners on electrical or HVAC assemblies.
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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