Quick view 12-24 x 1/2 Slotted H/W Zinc Plated Swageform® (Box of 25) Box of 25. 12-24 x 1/2Slotted H/W Zinc Plated Swageform® Swageform® Is THE High Performance Threadforming Screw. Swageform® thread forming screws have been superior performers in automotive, industrial, and consumer assembles for over 25... MSRP: Was: Now: $5.10 Add to Cart