TC Bolts | Tension Control Bolts | Hex Bolts Manufacturer

TC Bolts | Tension Control Bolts | Hex Bolts Manufacturer

Tension control bolt, also known as TC bolt, which are widely used in steel to steel constructure applications. TC bolts are high strength bolts, most common seen as A325 tc bolts, A490 bolts, galvanized tc bolts etc.

Fastenwell is one of the leading hexagon head tc bolts manufacturers, especially heavy hex bolts A325, bolts A490 together with heavy hex nuts A563.

Main Characteristics of TC Bolts:

Material: Alloy Steel

Size: 1/2'' to 1-1/2''

Grade: ASTM A325, A490

Surface Finish: Plain, Black, Zinc, Hot dip galvanizing

Thread: Full thread or half thread

Application: Steel to steel structure connections

Package: Small box, or 25kgs/carton, 36cartons/pallet

Delivery: 30 days

For tc bolts dimensions, please send request at info@fastenwell.cn

Bolts Production 

Fastewell is a bolts and screws manufacturer and supplier located in Ningbo, China. Hexagon head bolts, heavy hex bolts, structural bolts A325, A490 are our main products in production line.

More about tension control bolt (tc bolts)

What does TC mean by TC bolts?

TC is Tension Control when refer to a TC bolt, i.e Tension Control Bolt, which is a high strength and heavy duty bolt used in steel frame construction. The head is usually hexagon or domed and is not designed to be driven, which usually works with hexagon nuts and washers. Fastenwell, as a leading tc bolts manufacturer and supplier, we produce, stock and deliver different sizes A325 tc bolts, A563 hex nuts and washers for regular and potential customer in construction industry.

Where are TC bolts used?

TC bolts are used for high strength, high duty and steel to steel connections. A325 tc bolts are most commonly used in these high strength fastening applications, also dome head bolts.

How does a tension control bolt work?

Tension control bolt works by preloading the bolt, stretching it before the nut is tightened. The tensioner is clamped to the bolt's threads and pushes against the flange in the surface being bolted. This provides a very consistent amount of stretch to the bolt, ensuring consistent bolt stretch and clamping force

What is the difference between A325 and A490 bolts? A325 bolts vs a490 bolts

A325 and A490 are both heavy hex bolts, but grade A490 is stronger than grade A325. However, strength isn't the only factor when choosing the right bolt. Grade A490 bolts usually are black surface, grade A325 could be black, zinc or hot dip galvanized. Grade A325 is not as strong as grade A490, but its costs will be lower and can be perfectly galvanized to resistant to corrosion.

What nuts go with A325 bolts?

ASTM A563 nuts are usually recommended for A325 bolts, some customer also asking for ASTM A194 2H, which is also an acceptable substitute. These are high strength bolts and nuts, and go through heat treatment to develop the mechanical and chemical properties.

What does A325 mean on a bolt?

ASTM A325 is an ASTM International standard for heavy hex structural bolt. Fastenwell has over 15 years of experience manufacturing and exporting ASTM A325 tc bolts, heavy hex structural bolts, galvanized tc bolts for customers from worldwide, especially for North and South America market.

Is A325 a high strength bolt?

Yes, ASTM A325 bolts are high strength hex structural bolts used in steel structure connections. Fastenwell produce and export both heavy hex bolts A325 alone or A325 tc bolts with hex nuts and washers.

To check the best prices and delivery, please reach us at info@fastenwell.cn, we would be happy to hear from you and to provide the reliable products and services.

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