Self-Drilling Screws also called dovetail screws , is a  self-tapping screw with a drilling tail , which can be drilled by itself when in use , without the need for pre-drilling . Widely used in steel structure color steel tile fixing, building sheet fixing and other fields . The self-Drilling screws has higher surface hardness and core hardness than the self-tapping screws , and can be used for multiple drilling.

产品信息

Productname: Cross Recessed Pan Head Self-Drilling Screws

surface hardness: min HV450

core hardness: HRC28-38

Surface treatment：Color-Plated zinc 

Material: Carbon Steel

Specification: ST3.5 - ST6.3

Standard: GB/T 15856.2 DIN EN ISO 15482

Self-Drilling Screws also called dovetail screws , is a  self-tapping screw with a drilling tail , which can be drilled by itself when in use , without the need for pre-drilling . Widely used in steel structure color steel tile fixing, building sheet fixing and other fields . The self-Drilling screws has higher surface hardness and core hardness than the self-tapping screws , and can be used for multiple drilling.

产品信息

Productname: Cross Recessed Pan Head Self-Drilling Screws

surface hardness: min HV450

core hardness: HRC28-38

Surface treatment：Color-Plated zinc 

Material: Carbon Steel

Specification: ST3.5 - ST6.3

Standard: GB/T15856.1 DIN15481

Self-Drilling Screws also called dovetail screws , is a  self-tapping screw with a drilling tail , which can be drilled by itself when in use , without the need for pre-drilling . Widely used in steel structure color steel tile fixing, building sheet fixing and other fields . The self-Drilling screws has higher surface hardness and core hardness than the self-tapping screws , and can be used for multiple drilling.

产品信息

Productname: Hexagon Flange Head Self-Drilling Screws

surface hardness: min HV450

core hardness: HRC28-38

Surface treatment：Color-Plated zinc 

Material: Carbon Steel

Specification: ST3.5 - ST6.3

Standard:  GB/T 15856.4

The two sides of the wing nut have a wing-like structure, which increases the lateral force and makes the nut more efficient when twisted by hand. Wing  nuts are widely used in equipment requiring frequent disassembly and maintenance, and are popular for easy use.

产品信息

Productname: Carbon Steel Wing Nuts

Grade:  4.8 8.8 10.9 12.9

表面处理：发黑、镀锌、达克罗 ETC。

Material: Carbon Steel

Specification: M4 -M24

Standard:  GB/T62.1 GB/T62.2 DIN314 DIN315

The two sides of the wing nut have a wing-like structure, which increases the lateral force and makes the nut more efficient when twisted by hand. Wing nuts are widely used in equipment requiring frequent disassembly and maintenance, and are popular for easy use.

产品信息

Productname: Stainless Steel Wing Nuts

Grade:  A2-70 A4-70 etc.

Material: Stainless Steel

Specification: M4 -M24

Standard:  GB/T62.1 GB/T62.2 DIN314 DIN315

One end of the cap nut is a closed structure similar to a hat, which can cover the exposed part of the bolt when in use. Prevent the screw from rubbing, and can effectively prevent the intrusion of water and various corrosive substances, and slow down the speed of oxidation and rust of the screw.

产品信息

Productname: Stainless Steel Cap 坚果

Grade: A2-70 A4-70 ETC。

材料： 不锈钢

Specification: M4 -M24

Standard: GB/T923 DIN1587

One end of the cap nut is a closed structure similar to a hat, which can cover the exposed part of the bolt when in use. Prevent the screw from rubbing, and can effectively prevent the intrusion of water and various corrosive substances, and slow down the speed of oxidation and rust of the screw.

产品信息

Productname: Carbon Steel Cap Nuts

Grade:  4.8 8.8 10.9 12.9 

表面处理：发黑、镀锌、达克罗 ETC。

Material: Carbon Steel

Specification: M4 -M24

Standard:  GB/T923 DIN1587

Nylon lock nut is made of nylon rubber ring embedded in one end of the nut lock pressure to make it a whole, the main function of nylon ring is anti-slip and anti-loose. When the bolt and nut are locked, the nylon rubber ring will be cut by the thread of the bolt, increasing the friction between the bolt and the nut, so as to achieve the purpose of anti-loosening.

产品信息

Productname: Nylon Carbon Steel Lock Nuts

Grade:  4.8 8.8 10.9 12.9 

表面处理：发黑、镀锌、达克罗 ETC。

Material: Carbon Steel

Specification: M3 -M36

Standard:  GB/T889 DIN982

Nylon lock nut is made of nylon rubber ring embedded in one end of the nut lock pressure to make it a whole, the main function of nylon ring is anti-slip and anti-loose. When the bolt and nut are locked, the nylon rubber ring will be cut by the thread of the bolt, increasing the friction between the bolt and the nut, so as to achieve the purpose of anti-loosening.

产品信息

Productname: Nylon Stainless Steel Lock Nuts

Grade:  A2-70 A4-70 etc.

Material: Stainless Steel

Specification: M3 -M36

Standard:  GB/T889 DIN982

Flange Nuts is a hexagon nut and washer combined with the integrated nut, its biggest feature is the bottom of the anti-slip teeth, in increasing the contact area at the same time has a good anti-slip effect. Make the workpiece more firm when connected, can withstand greater load. Generally used in pipes and flanges.

产品信息

Productname: Nylon Lock Flange Nuts

Grade: 4.8 8.8 10.9 12.9 A2-70 A4-70 etc.

Surface treatment：Black oxide、Galvanized、Dacromet  etc.

Material: Carbon Steel 、Stainless Steel

Specification: M5 -M20

Standard: GB/T6183.1 DIN6926