Sturdy: The strut channel nuts is electro-galvanized, which greatly enhances the corrosion resistance, which is very long-lasting and has a long service life Sturdy and Secure: The reinforced design of the spring nut secures your accessories in the channel, providing extra security Wide Applications: These spring nuts are often used on channel struts to attach fittings to channel surfaces Standard Springs: Thread Size 1/4-20, Thick 6mm, Pack of 10 Stable Connection: The well manufactured nuts are strong enough to keep a tight fitting butt Sturdy: The strut channel nuts is electro-galvanized, which greatly enhances the corrosion resistance, which is very long-lasting and has a long service life. Wide Applications: These spring nuts are often used on channel struts to attach fittings to channel surfaces. Sturdy and Secure: The reinforced design of the spring nut secures your accessories in the channel, providing extra security for extra security. Standard Springs: Thread Size 3/8"-16, Thick 6mm, Pack of 10 Stable Connection:The well manufactured nuts are strong enough to keep a tight fitting butt.