Specification Brand : GOTOTOP BulletPoint1 : [GOOD LOAD BEARING CAPACITY] This screw has a strong load bearing capacity, wind resistant, earthquake resistant, and waterproof, ensuring safety and reliability. BulletPoint2 : [4PCS SET] There are 4 mounting screws in this set, which is sufficient to meet your solar panel mounting bracket fixing needs. BulletPoint3 : [COMPACT AND SMALL] This screw has a compact shape, simple structure and high mechanical strength, greatly facilitating the assembly of connectors during outdoor installation. BulletPoint4 : [STAINLESS STEEL MATERIAL] The screws are made of stainless steel, hard and wear resistant, with clear threads and a long service life. BulletPoint5 : [EASY INSTALLATION] The easy on-site installation process of this racking accessory effectively improves on-site installation efficiency, saving time and labor costs for PV system installation projects. ItemName : 4PCS Double Head Screw Stainless Steel Photovoltaic Mounting Screw for Solar Panel Bracket Installation 25cm Length ItemPackageDimensions_Height : 3 centimeters ItemPackageDimensions_Length : 25 centimeters ItemPackageDimensions_Width : 9 centimeters ItemTypeKeyword : strap-clamps Manufacturer : GOTOTOP ModelName : GOTOTOPepfcdatk59 ModelNumber : GOTOTOPepfcdatk59 NumberOfItems : 1 PartNumber : GOTOTOPepfcdatk59 ProductDescription : [GOOD LOAD BEARING CAPACITY] This screw has a strong load bearing capacity, wind resistant, earthquake resistant, and waterproof, ensuring safety and reliability. [4PCS SET] There are 4 mounting screws in this set, which is sufficient to meet your solar panel mounting bracket fixing needs. [COMPACT AND SMALL] This screw has a compact shape, simple structure and high mechanical strength, greatly facilitating the assembly of connectors during outdoor installation. [STAINLESS STEEL MATERIAL] The screws are made of stainless steel, hard and wear resistant, with clear threads and a long service life. [EASY INSTALLATION] The easy on-site installation process of this racking accessory effectively improves on-site installation efficiency, saving time and labor costs for PV system installation projects.