The ALM Greenhouse 20 x Square Head Bolts & Nuts set provides essential hardware for assembling, repairing, or constructing greenhouse structures. This pack contains 20 individual square head bolts and matching nuts, designed for secure fastening. Made for durability and long-lasting performance in various weather conditions, these silver-colored components are ideal for ensuring the stability and integrity of your greenhouse frame. Suitable for a wide range of greenhouse models requiring square head fittings. Ensure your greenhouse is secure with these reliable ALM bolts and nuts.