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The VALUE COLLECTION SMHWHI0370100B0SL-100BX is a 3/8-inch hex washer head sheet metal screw designed for fastening thin metal panels, ductwork, and sheet metal assemblies. This screw features a slotted drive and a Type B point for self-tapping entry into light-gauge steel without a pre-tapped hole. Manufactured from Grade 2 steel with a zinc finish for basic corrosion resistance, it measures 1 inch in length under the head. The hex washer head provides a broad bearing surface and is driven with a standard hex socket or nut driver.
Sheet metal screws of this type are commonly used in HVAC ductwork assembly, electrical enclosure fabrication, and light structural sheet metal work. The hex washer head style is a preferred fastener in commercial and residential mechanical applications where a wrench-driven connection is needed and pull-through resistance matters. Licensed HVAC technicians, sheet metal workers, and electricians install these fasteners in both new construction and retrofit scenarios.
Designed as a standard OEM-style replacement or general-use fastener for light-gauge sheet metal assemblies including HVAC ductwork, electrical enclosures, and similar thin-metal fabrication applications.
Installation is performed by HVAC sheet metal workers, electricians, or mechanical contractors using a hex nut driver or socket wrench sized to the hex washer head. Ensure the workpiece is securely supported before driving to prevent distortion of thin metal. Do not overdrive — excessive torque can strip the self-tapped thread in light-gauge material. Follow applicable mechanical and building codes for fastener spacing and pull-out requirements in ductwork and enclosure 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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