Check the listing for details. M6x36mm Female Threaded Hand Knob Cylinder Brass Insert Handle for Machine, 4Pcs. Condition: New. Listed at 10.75 USD. Description:Made of phenolic material with mirror polishing that is smooth and durable. It provides high electrical insulating properties, heat resistance, toughness, ductility and good properties for long-term use.Designed with a female threaded brass insert hole as a durable fastener that can be screwed in to attach firmly and avoid it being moved or loose when applying it to the male thread.This cylinder hand knob has a glossy and non-slip surface that is comfortable to handle. It can be easily grip to assemble and disassemble by hand without any tools.The hand knobs are versatile. It can be used as a replacement part for mechanical equipment, furniture decorations, control levers, exercise equipment, and more.