Self Tapping Screw

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Self Tapping Screw

As a kind of threaded fastener, this self tapping screw is able to create its own mating threads as it is applied for pre-bored holes of metal or non-metal materials. The material is carbon steel mainly 1022 medium carbon steel and stainless steel. This product can fall into round head, countersunk head, shore head, hex head, etc. according to head style. By trough type, it can be divided into slotted, cross-slotted, and other types. And according to different standards, this product is separated into GB, DIN, ANSI, and BS.

Technical Data of Cross Recessed Head Countersunk Self Tapping Screw
Standards: Cross Recessed GB845-85 GB846-85 GB847-85 JIS1122
Surface Treatment: Galvanizing or Zinc Plating

GB846-85 Cross Recessed Head Countersunk Self Tapping Screw Self Tapping Screw
Material: Case Harden Steel, Stainless Steel L<=50mm L>50mm
(Thread length can be negotiable)
Thread Standards ST2.2 ST2.9 ST3.5 ST4.2 ST4.8 ST5.5 ST6.3
dk Max. 3.8 5.5 7.3 8.4 9.3 10.3 11.3
K Max. 1.1 1.7 2.35 2.6 2.8 3 3.15
m H Type 1.9 3.2 4.4 4.6 5.2 6.6 6.8
Z Type 2 3.2 4.3 4.6 5.1 6.5 6.8
Slot No. 0 1 2 2 2 3 3
L 4.5-1.6 6.5-19 9.5-32 13-38 16-45 19-50 22-75

Our self tapping screw is produced from case harden or carburize steel and stainless steel by zinc plating. It has good comprehensive mechanical properties, high tensile and high load-carrying capacity. Apart from these features, it also comes with good abrasion resistance, good corrosion resistance, and high rigidity as well as ductility. Our product is ideal for connecting metal panels together. In addition, its thread standard comes in ST2.2, ST2.9, ST3.5, ST4.2, ST4.8, ST5.5 and ST6.3.

SBS is an experienced self tapping screw manufacturer and supplier in China. Apart from steel structural accessories, we also offer light steel framed assembled container house, gable frame steel structure building, rockwool sandwich panel, and more.

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