FINE THREAD 1 3/4" Wide Clamping Knob. Thickness: 7/16" Has an ergonomic sturdy grip for fast adjustment without a wrench. The ergonomic grip provides strong torque and easy manual operation. 304 Stainless Steel Bolts – highly resistant to corrosion and rust, making them ideal for both indoor and outdoor use, even in harsh environments or areas exposed to moisture. Durable and long-lasting for secure fastening. Versatile Design – Ideal for machinery, plates, panels, jigs, fixtures, and DIY projects; provides quick hand installation and removal for tool-free adjustments in shop, home, or field use. Acetyl Thermoplastic Knob – Hard, durable, chemical- and moisture-resistant material offers lightweight, non-conductive performance for easy tightening. Built in USA by Family-Owned Small Business, Backed by a Lifetime Warranty 3/8"-24 Fine Thread Thumb Screw Bolts with Yellow Butterfly Tee Wing Clamping Knob Description: These 3/8"-24 fine thread thumb screw bolts feature a Yellow butterfly tee wing clamping knob, allowing for easy, tool-free hand adjustments. These bolts provide precise and secure fastening, ideal for applications where frequent tightening and loosening are needed. The butterfly wing knob offers a comfortable, slip-resistant grip, making it perfect for tight spaces and projects requiring frequent adjustments. Key Features: Fine Thread: 3/8"-24 fine thread for precision fastening Ergonomic Butterfly Knob: Black tee wing knob for comfortable hand-tightening Compact Length: 1 inch length for versatile applications Durable Design: Ideal for repeated use in both industrial and DIY settings These thumb screw bolts provide reliable, easy-to-use clamping for projects like machinery, electronics, and woodworking, delivering both functionality and a professional finish. - Head Type: Tee Head - Head Type: Tee Head