Used in aircraft and heavy duty, industrial applications that are non-corrosive Permit fast and easy installation, yet can never snap open once installed Four piece Quadra-Lock construction: housing orbitally riveted to saddle at 4 points providing extra strength 9/16″ (14.2 mm) band width 5/16″ (7.9mm) hex head screw 301 Stainless Steel band and housing 301 Stainless Steel slotted hex-head (H) Screw