Stainless Steel Concrete Screws with Hi-Lo Thread / Flange Head Lag Screws

Carbon Steel Hex Flange Head Concrete Bolt with Hi-Lo Thread Heat-Treated

Product Description

Concrete Bolt

• Used for attaching heavy loads to concrete, brick, and hollow block.
• Can be removed for adjustment, then re-driven into same hole.
• The Concrete Bolt is designed to match standard fixture clearance holes to provide a secure fit.
• Can be installed at shallower embedment depths than wedge or sleeve anchors reducing the chance of striking reinforcing bars or embedded cables.
• Utilizes a specially designed relief thread formed in the body of the anchor which allows easy tightening at a reduced torque level and provides dust relief to prevent anchor from jamming.
• A chamfered end easily centers anchor, and a 30° helix angle allows anchor to be tightened quickly. The controlled “screw-in” method is safer than using a hammer.
• Diameter and length appear on the head of each anchor.

Hi-Lo screw thread
The Hi-Lo screw thread configuration has a smaller minor diameter than a conventional screw. The high threads make a deeper cut into the material leaving a greater volume of material between the threads. There is also a greater amount of material in contact with the high, sharp thread and the axial shear area is increased. All of this contributes to greater resistance to pullout and stronger fastening.

Advantages:

• Perfect screw for low-stress applications
• Reduced cracking in plastic bosses
• Smaller sized bosses can be designed to save in material and space
• Increased pull-out resistance

Company Introduction

Advantages of our factory

1. Professional manufacturer for bolt,screw,nut,washer,PEM fasteners ,cnc lathe machine parts,automatic lathe parts,milling machine parts,stamping part etc.

2. More than 15 years experience

3. 100% inspection on critical dimensions with high accuracy +/-0.01-0.05mm

4. Factory direct price and on time delivery

5. Sample available

6. OEM workable

Ningbo Oukailuo Hardware Co., Ltd was founded in 1999,has been a leading manufacture and supplier of fasteners with a history of product and service over 19 years.This commitment has not wavered because complete customer satisfaction is always our No.1 priority.We persist in the principle of “Quality and integrity is the lifeline of an enterprise's subsistence and development” and do our best to provide you with best fasteners ,most favorable price,fastest delivery and best services.We sincerely hope to be your reliable supplier and partner.

FAQ

Q: Are you trading company or manufacturer ?
A: We have our own factory, which is located in Ningbo, Zhejiang. Both design team & manufacture team will support our products.

Q: What’s your main products? Can customize or not?
A: Our main products are screws.

Q: Do you provide samples? Is it free or extra?
A: Yes, we could offer the sample for free charge if we stock, but do not pay the cost of freight.

If you are interested in chipboard screw, Please do not hesitate to email us or call us. Our professional team will assit you to purchased the quality products.