You can use the nut and bolt kit that is rust-proof, long-lasting, and sturdy for most aluminum-frame greenhouses. Simply insert the bolt into the groove of the glass strip and lock it firmly in place when tightening the nut; easy to install. Made of aluminum, the nuts and bolts are rust-proof and hard. A set includes 50 nuts and 50 bolts. This kit is a practical tool for glasshouses, greenhouses, gardens, courtyards, and more. Item Name: Nut Bolt Kit Material: Aluminum Features: Rust-Proof, High Hardness, Anti-Deform Size Details: Nut Diameter: 1 cm / 0.39" (Approx.) Bolt: 1.5 cm x 1 cm x 0.5 cm / 0.59" x 0.39" x 0.2" (Approx.) Notes: Quantity is approximately 50 pieces; due to manual counting, there may be 1–3 pieces more or less. Due to differences in lighting and screen settings, the item's color may vary slightly from the images. Please allow slight dimensional differences due to manual measurement. Package Includes: 50 x Nuts 50 x Bolts