This angle beveled washer is made of Stainless steel, which is , rustproof, anti-, and to extreme weather. 30-degree angled washers are easy to install for beginners, you can DIY your stair railing to more professional and beautiful. Inside diameter= 1/4inch/6.6mm, Outside diameter= 5/8inch=16mm, Angle = 30 Degree. Suitable for 1/8inch and 3/16inch wood/metal cable railing kit. 30-degree stainless steel angled beveled washers are designed for termination on end posts that have angled, or offset holes on stair railings, suitable for short and long stud terminals, and even for tuner terminals. these stainless steel angled beveled washers are suitable for indoor or outdoor cable railing. 10 Pack 30 Degree Angle Beveled Washer. You can use it with the corresponding cable railing kit., Weight: 0.24030386558 pounds, Manufacturer: Tuidzljd