T-Bolt Clamp Fixed Bridge 3/4" 300 SS Band ¼”-28 SS Screw SS Nut SAE J1508 Type SLF SAE Size 172 6-1/4" to 6-9/16" Typically used on 6" hoses. Heavy duty T-bolt clamps provide uniform sealing pressure for a positive, reliable seal. The spring helps provide constant tension in spite of temperature variations. They are specifically designed for use in high vibration and large diameter applications. Typical uses include truck air intake systems, cold side charge air systems, off-road equipment, industrial machinery, and marine applications. Our clamps come from a 50+ year old OEM supplier to the heavy duty commercial truck market. Unlike most online sellers who just buy from the lowest bidder, we make an extra effort to find suppliers who provide high quality products that are a great value. Replaces: Breeze: TB-625 (plated screw) Breeze: TB-625SS Dixon: STBC650 Flexfab: FLX2583-0625 Gates: 32778 Ideal: 30021-0625 Imperial: 74386