Thumb screws are made to be tightened by hand rather than a tool. When it's time to restock your thumbscrews, browse the selection at Fastener-Express. Stainless steel, plain steel, and zinc thumbscrews are available. If you have questions about which type of thumbscrew will work best, please give us a call or send an email to sales@fastener-express.com. If you don't see what you're looking for, we'd be happy to explore the options and help you find what you need.