[1000 BULK] Jackscrews Steel Zinc Yellow 4-40 X 1/2 are precision-grade fasteners designed for precise alignment and secure clamping in electronics, machinery, and fabrication projects. Constructed from durable steel and finished with a zinc yellow coating, these jackscrews resist corrosion while maintaining smooth operation.

Product highlights

• Material: Steel
• Finish: Zinc Yellow (corrosion-resistant)
• Size: 4-40 thread, 1/2 in length
• Quantity: 1,000 pieces per bulk pack
• Type: Jackscrews for precise positioning and fine adjustment
• Applications: electronics enclosures, fixtures, mechanical assemblies, DIY projects

Designed for repeatable performance, these bulk jackscrews deliver dependable holding power and easy adjustments for professional results. Add them to your toolkit to streamline assembly and alignment tasks with confidence.

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State ofCalifornia to cause cancer and birth defects or other reproductive harm. For more information go tohttps://www.P65Warnings.ca.gov.