1/4" x 4" Toggle Bolts/Mushroom Head/Combo Drive/Steel/Zinc/Anchor Size: 1/4" / Screw Size: 1/4-20 x 4 / Drill Bit/Hole Size: 5/8" (Carton: 50 pcs)

Product Description (2000 characters): When you need maximum holding power in hollow wall applications, the 1/4" x 4" toggle bolt with mushroom head delivers professional-grade performance that standard anchors simply cannot match. This heavy-duty fastening solution combines robust zinc-plated steel construction with an intelligently designed spring-loaded toggle mechanism to create secure, long-lasting installations in drywall, plaster, hollow concrete block, and other cavity wall materials. The mushroom head design is specifically engineered for superior performance in hollow wall applications. Unlike standard round head bolts, the wider, flatter mushroom head distributes clamping force over a significantly larger bearing surface, preventing pull-through on thin materials and eliminating the risk of crushing or marring soft surfaces like wood, plastic, or finished metal. This low-profile head sits closer to your mounting surface while providing the broad contact area that professional installations demand. Whether you're securing equipment enclosures, mounting brackets through sheet metal, or attaching fixtures to delicate finished surfaces, the mushroom head prevents the dimpling and surface damage that smaller round heads can cause under load. The extended 4-inch bolt length provides the reach-through capability needed for thick walls, multiple material layers, or applications requiring significant projection. Whether mounting equipment through insulation, securing fixtures to double-layer drywall, or installing hardware that requires spacers, this extended length ensures adequate threading depth for proper engagement. Installation is straightforward and reliable. The 5/8" drill hole accommodates the spring-loaded toggle wings, which automatically deploy once inserted through the wall cavity. As you tighten the 1/4-20 threaded bolt using the versatile combo drive (accepts Phillips or slotted drivers), the wings pull against the interior wall surface, distributing load across a significantly larger area than expansion anchors. This superior load distribution prevents pull-through failures and protects walls from damage. Zinc plating provides corrosion resistance for reliable long-term performance in interior environments, including moderate moisture areas. Professional contractors appreciate the 50-piece carton quantity for multi-unit installations and commercial projects. From heavy shelving and TV brackets to commercial equipment, handrails, electrical fixtures, and HVAC installations, these mushroom head toggle bolts provide the strength, surface protection, and reliability that professional installations demand.