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Bored Bolts

The SB of bored bolts refers to the ultimate tensile strength of bolts, indicating the maximum resistance of bored bolts to failure under tension. Tensile strength is the maximum nominal tensile stress of the specimen before breaking. It is the critical value of metal transition from uniform plastic deformation to locally concentrated plastic deformation, and [...]

By |September 4th, 2019|DoWeDo News|Comments Off on Bored Bolts

Thread of Steel Structure Bolt

The threads of steel structure bolt can be divided into three types according to their structural characteristics and uses, namely, common threads, transmission threads and sealing threads. Thread refers to a kind of uniform spiral protrusion on the section of the screw or the surface or inner surface of the bolt, which mainly plays the [...]

By |August 15th, 2019|DoWeDo News|Comments Off on Thread of Steel Structure Bolt

Notes for High Strength Dacromet Bolts

High strength Dacromet bolts refer to the bolt which has been coated with zinc and chromium on the surface and whose material performance grade is above 8.8, so it has excellent corrosion resistance and high strength. There are many points needing attention before and during the use of high strength Dacromet bolts, as follows: 1. [...]

By |August 7th, 2019|DoWeDo News|Comments Off on Notes for High Strength Dacromet Bolts

Production Technology of High Strength Hot Galvanized Bolts

High-strength hot-dip galvanized bolts have bright colors, high strength and corrosion resistance. They are widely used in outdoor work, such as industrial machinery processing and infrastructure construction, highway fencing, power tower, etc. Generally speaking, the coating of high-strength hot-dip galvanized bolt is thicker, generally 30-60 microns. The production process of high-strength hot-dip galvanized bolts is [...]

By |August 5th, 2019|DoWeDo News|Comments Off on Production Technology of High Strength Hot Galvanized Bolts

Characteristics of Nuts

The nuts are fastener having an internal thread and used in conjunction with a bolt, a mechanical part having an internal thread and used in conjunction with the screw to transmit motion or power. The nut is a part that is screwed together with a bolt or a screw for fastening. All the original parts [...]

By |July 15th, 2019|DoWeDo News|Comments Off on Characteristics of Nuts