The J bolt is a J-shaped fastener, screwed on the flat side.

J bolts are commonly used in roof applications. Mild steel zinc plate and stainless steel are available in certain sizes from stock.

Fully threaded hex bolts, also known as "hex sets", are designed for heavy-duty fastening applications. As the name suggests, these fasteners are screwed all the way to the head of the bolt. This makes it ideal for installation in pre-threaded holes.

If your product is mainly focused on grip and is not so interested in alignment and shear strength, then full threaded bolts are the best fastening solution. After application, the fully threaded bolt will distribute the pressure over the entire length, and the maximum holding pressure will be applied to the head.

Anchor bolt installation method

1. One-time burying method: When pouring concrete, bury the anchor bolts. When high towers are controlled by overturning, the anchor bolts should be embedded in one step.

2. Reserved hole method: the equipment is in place, the holes are cleaned, the anchor bolts are put into the holes, and the equipment is positioned and corrected, and then poured with non-shrinking fine-stone concrete one level higher than the original foundation for compaction. . The distance from the center of the anchor bolt to the edge of the foundation should not be less than 4d (d is the diameter of the anchor bolt), and should not be less than 150mm (d≤20, should not be less than 100mm), and not less than half of the width of the anchor plate Add 50mm. When the above requirements cannot be met, appropriate measures should be taken to strengthen it. The diameter of the anchor bolts used for the structure should not be less than 20mm. When subjected to earthquakes, double nuts should be used for fixing, or other effective measures to prevent loosening should be adopted, but the anchoring length of the anchor bolts should be 5d longer than the non-seismic anchoring length.