Hillman 1/8 in. Dia. x 4 in. L Truss Steel Toggle Bolt 50 pk Toggle bolts come with spring-action wings and are intended for anchoring into hollow walls. The wing is designed to spread apart behind the base material upon installation for firm hold in hollow wall applications. The wing disperses the weight of the secured item over a larger area, increasing the weight that can be secured compared to a regular bolt. Diameter: 1/8 In. Length: 4 In. Head Type: Truss Drive Type: Slotted Drill Size: 7/16 In. Wall Thickness: 3/8 to 3-1/4 In. Size: Finish: Zinc Color: Silver Pieces in Kit: Maximum Weight (Drywall): Material: Steel Screws Included: Features Made in China USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.