Square Head Carbon Steel Plain Lag Bolt Coach Screw

• Material: Carbon Steel
• Type: Square Head
• Connection: Common Bolt
• Head Style: Square
• Standard: DIN, ANSI, GB, JIS, BSW, GOST
• Application: Machinery, Chemical Industry, Environmental
• Finish: Black
• Specification: 1/4-3"
• Origin: China

Product Description

 Square Head Carbon steel Plain Lag bolt  Coach Screw 

 

A lag screw, or lag bolt,coach screw  is a full-bodied bolt with square head or  hex head, spaced threads, and a gimlet point. They are generally used to connect heavy lumber and other materials that bear an intense load. Zinc plated lag screws should be used for wood in non-corrosive environments, while hot dipped galvanized lag bolts can be used in corrosive environments, such as an outdoor deck. For even more protection, consider using stainless lag bolts.

 

Lag bolts are designed for securely fastening heavy timbers (post and beams, timber railway trestles and bridges) to one another, or to fasten wood to masonry or concrete

 

Lag bolts are usually used with an expanding insert called a lag in masonry or concrete walls, the lag manufactured with a hard metal jacket that bites into the sides of the drilled hole, and the inner metal in the lag being a softer alloy of lead, or zinc alloyed with soft iron. The coarse thread of a lag bolt and lag mesh and deform slightly making a secure near water tight anti-corroding mechanically strong fastening.

 

The sizes are as below:

 

1/4" x 3/4",  1/4" x 1",  1/4" x 1 1/4" , 1/4" x 1 1/2" , 1/4" x 1 3/4"

1/4" x2", 1/4" x2 1/2 ", 1/4" x3", 1/4" x4", 1/4" x5", 1/4" x 5 1/2"

 

 

5/16"x 1" , 5/16"x 1 1/4 " , 5/16"x 1 1/2" , 5/16"x 2 " , 5/16"x 2 1/2" , 5/16"x 3" ,5/16"x 3 1/2" , 5/16"x 4 " , 5/16"x 4 1/2" , 5/16"x 5 " , 5/16"x 5 1/2"

 

3/8"x 1 1/4" ,  3/8"x 1 1/2" ,  3/8"x 1 3/4",  3/8"x 2 ",3/8"x 2 1/2",

3/8"x 3",  3/8"x 3 1/2", 3/8"x 4", 3/8"x 4 1/2 ", 3/8"x 5", 3/8"x 6"

 

1/2"x 1 1/2" , 1/2"x 2 ", 1/2"x 2 1/2", 1/2"x 3",  1/2"x 4",  1/2"x 5 ", 1/2"x 6", 1/2"x 7", 1/2"x 8", 1/2"x 10", 1/2"x 12"

 

5/8"x2",5/8"x21/2",5/8"x3",5/8"x4", 5/8"x5", 5/8"x6" 5/8"x7",5/8"x10",5/8"x12" 5/8"x16" ,5/8"x18", 5/8"x24" 5/8"x27"  

 

3/4"x11/2",3/4"x4",3/4"x5",3/4"x6",3/4"x8",3/4"x9",3/4"x10",3/4"x12",3/4"x13",

3/4"x14",3/4"x16",3/4"x22",3/4"x26",

 

7/8x6",7/8x8",7/8x10",7/8x11",

 

1"x 4", 1"x 4 1/2",1"x 6",1"x 6 1/2",1"x 8", 1"x 12"

 

FAQ
Q1: Are you trading company or manufacturer ?
A1: We are factory.

Q2: Can I visit your factory?
A2: Yes! Warmly welcome to visit our factory. It would be Great if you can inform us in advance.

Q3:The quality of your products?
A3:The company has advanced production and testing equipment .Every products will be 100% inspected by our qc department before shipment

Q4:How about your price?
A4:High quality products with reasonable price. Please give me a inquire, I will quoted you a price for you refer at once.

Q5:Could you provide free samples?
A5:We can provide free samples for standard fastener, But the clients will pay the Express charges.

Q6: What's your Delivery Time?
A:Standard parts: 25-35days,Non-standard parts: 30-45days.We will make the delivery as soon as possible with the guarantee quality.

Q7: How should I order and make payment?
A7:By T/T, for samples 100% with the order; for production, 30% paid for deposit by T/T before production arrangement, the balance to be paid before shipment.