4-40 X 1/2″ Jackscrews Steel Zinc Yellow (1000 / Pkg.) Direct From Factory
Original price was: $232.96.$97.84Current price is: $97.84.
For orders under $150.00, a shipping fee of $12.99 applies.
[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.





