Sammys SH-TEK 5.0 3/8 Inch Swivel Head Steel Zinc Finish (Pack of 25)
SAMMYS Screws & Accessories. Everflow Sammys Swivel Head is designed for steel, bar joist, I-beam and hollow structural steel ranging from 1/8″ to 1/2″ in low slope or pitched roof designs (12/12). Can be installed into angled Z-purlin, allows threaded rod to hang plumb and eliminates distortion of threaded rod in sloped roof applications.