This blog is a comparison between the most common hook styles, machine hooks and side loops.
Springs 101: Understanding the Basics and Types of Springs
What Type of Precision Spring Does My Project Need? - Gifford Spring Co
Extension Spring Hook Styles: Machine Hooks vs. Side Loops — Southern Precision Spring
Extension Springs Manufacturer - Newcomb Spring Corp.
Understanding Extension Spring End Types - WB Jones
Bag Tie Tool Long Handle
Extension Springs - Learn About
SPRING 2018
Push Button Latch