SIMPSON WEDGE ALL - The Wedge–All is a non-bottom bearing, wedge style expansion anchor for use in solid concrete or grout filled masonry. WEDGE–ALL SPECIAL FEATURES: One piece wrap around clip. Threaded end is chamfered for ease of starting nut. Most sizes feature full thread for added versatility. CODES: ICBO ER-3631; SBCCI 9706; City of L.A. RR24682; Dade County 01–0820.06; Factory Mutual 1M6AO.AH; Underwriters Laboratories File Ex3605; Meets requirements of Federal Specifications A–A–1923A, Type 4.