Creative Hobbies ELY7060C - Brass Knurled Locknut Fits 1/8IP Standard Lamp Pipe, Hardware DIY Repair Part - Pack of 10 Pieces Fits all standard lamp pipe measuring 3/8 inch outside diameter and designated with 1/8IP thread. Solid Brass nuts are 3/4 Inch OD x 1/16" thick and have a knurled outside edge for easy grip. Pack includes 10 Brass Knurled Lock nuts. Made in USA. Creative Hobbies ELY7060C - Brass Knurled Locknut Fits 1/8IP Standard Lamp Pipe, Hardware DIY Repair Part - Pack of 10 Pieces. Fits all standard lamp pipe measuring 3/8 inch outside diameter and designated with 1/8IP thread. Solid Brass nuts are 3/4 Inch OD x 1/16" thick and have a knurled outside edge for easy grip. Pack includes 10 Brass Knurled Lock nuts. Made in USA.