1. Product: Stainless Steel Swivel Routel for tempered glass, laminated glass. 2. Specs: a. Dia. of threaded ball bolt: M12 to M14. b. Thickness of steel disk: 5mm;Dia. of steel disk: 60mm. c. The range ofglass thickness to suit:12mm 20mm. d. Type of glass hole drilling: Countersunk holes in glass. 3. Other info: a.ISO certificate: We was certified TUV ISO 9001-2000 in 2003, and certified TUV ISO 9001-2008 in 2009. b.Material: We offer qualified stainless steel 304 or 316 as per American standard (AISI). Test report of material is available upon your request. c.Export percentage: 81 - 89% of our products are for the export. d. QC: 100% of our products have inspection at our factory before delivery to the port.