Inside interlocking aluminum, the flange includes a deeper outside register to ensure a secure, tight fit that is able to withstand high pressures. Clamps manufactured with corrosion-resistant 304 stainless steel which offers better durability to the everyday extreme environmental conditions these parts are subjected to. Quick-release mechanism with a one-piece FlexLoc Nut that is ideal for severe service uses and won’t fail like inferior nylon nuts. Because a FlexLoc Nut has no nylon insert, it consistently provides better tensile strength than the leading "two-element" locknuts and is ideal for elevated temperature environments. PPE’s deep register holds the V-Band Flange securely until you are ready to release. Easily and securely reconnects in seconds.