Finished to Match Stainless Steel Alan Style Clamp Screws (Phillips Screws Available on Request) Solid Forged Brass Construction Precision Machined 300 Series Stainless Steel Components Dual Precision Wound Stainless Steel Return Springs Mouse Ear Design Self-Centering 0° Return (5° Positive Closure Available) Designed for 1/4" and 5/16" Glass Wall Mount Hinges Include Finished to Match Stainless Steel Mounting Screws Allen Wrench Included One hinge per package. If you need two select quantity 2 ADDITIONAL PRODUCT INFORMATION: using two hinges with 1/4" to 5/16" glass the hinge will hold up to 55 lbs (25 kg) with a maximum door width of 32" (813 mm). Using three hinges with 1/4" to 5/16" glass the hinge will hold up to 85 lbs (38 kg) with a maximum door width of 36"(914 mm). The Radial Series Wall Mount With Full Back Plate Series of professional Hinges is able to accommodate 1/4" (6 mm) glass. Radial Hinges are self-centering and contain a Reversible 5 ° Pivot Pin. Made of solid brass with all moving parts (pins and springs) in stainless steel with cambered edges.