B1306 Landmark Plaza No.1238 Hongxing Road JiaXing , ZheJiang , China 314001
Home ProductsSelf Tapping Screws

Self Tapping Stainless Steel Screws For Roofing Fastening A2 ST4.2 X 1.4 X 25

Self Tapping Stainless Steel Screws For Roofing Fastening A2 ST4.2 X 1.4 X 25

    • Self Tapping Stainless Steel Screws For Roofing Fastening A2 ST4.2 X 1.4 X 25
    • Self Tapping Stainless Steel Screws For Roofing Fastening A2 ST4.2 X 1.4 X 25
    • Self Tapping Stainless Steel Screws For Roofing Fastening A2 ST4.2 X 1.4 X 25
    • Self Tapping Stainless Steel Screws For Roofing Fastening A2 ST4.2 X 1.4 X 25
  • Self Tapping Stainless Steel Screws For Roofing Fastening A2 ST4.2 X 1.4 X 25

    Product Details:

    Place of Origin: Zhejiang, China (Mainland)
    Brand Name: HNF
    Certification: ISO9001
    Model Number: DIN7504K

    Payment & Shipping Terms:

    Minimum Order Quantity: 10000 pcs
    Price: Negotiation
    Packaging Details: Box and Carton and Paller or Customize Packing
    Delivery Time: 15-20days
    Payment Terms: L/C, T/T, Western Union
    Supply Ability: 300 ton per month
    Contact Now
    Detailed Product Description
    Product Name: Self Tapping Metal Screws A2 DIN7504K ST4.2x1.4x25 Self Drilling Screws Material: Stainless Steel 304
    Head: Hex Washer Length: 25mm
    Standard: DIN7504K Application: Roofing Fastening
    High Light:

    Black Self Tapping Screws

    ,

    Pan Head Framing Screws

    Self Tapping Metal Screws A2 DIN7504K ST4.2x1.4x25 Self Drilling Screws

     

    1.Product Description

     

    Self-Drilling Screws are also commonly called: Tek Screws, Roofing Screws, Pro PointsSelf Tapping Screw, Drill Bit Tip Screws. Self-Tapping screws can cut their own threads as the screw is driven in to the material. They function by having a cutting edge which drills away the material, making a tiny hole for the screw to go into. This has nothing to do with the point of the screw but has everything to do with the threads which are designed to cut through the material. Similar to sheet metal screws, but they have a drill-shaped point to cut through sheet metal or steel which eliminates the need for drilling a pilot hole. These tek screws are designed for use in soft steel or other metals. Hex flange head self tapping screws generally made of C1022 carbon steel hardend or stainless steel SS410. It has an excellent drilling performance on hard material and sheet metals. C1022 steel self drilling screws could drill 1.5mm thick sheet metal while SS410 could drill even 5mm thick sheet metal. Hex flange head screws normally with a socke hex drive and also slotted drive options. There is some times an additional philips drive on the hex head. Please see below the guide dimensions for standard offers.

     

    2. Specification

     

    Product Dimensions ST4.21x1.4x25
    Pitch 1.4mm
    Washer Thickness

    0.8mm

    Washer Diameter 8.1-8.8mm
    Head Thickness 3.6-4.1mm
    Opposite Side 6.78-7mm
    Free Sample Available, only shipping need to be charged

     

    3.Application

     

    General Fastening applications where need high strength and superior corrosion resistance. Typical applications Construction, Machine repairs outdoor. Designed for using in high-stress and high-strength applications. Zinc plated offers corrosion resistance and protection.

     

    4.Advantages

     

    Common chioce for fastening, which provide high tensile, offering high holding power and corrosion resistance. We stock many grades of fasteners ranging from low carbon steel on up to hardened, heat treated steel. Competitive prices with professional factory supply. Perfect fastening solution with 10 years experiences to solve your problem: Wide range of parts selection. Durability testing and critical technical design to enhance fasteners lifetime. 

     

    5.More pictures

     

    Self Tapping Stainless Steel Screws For Roofing Fastening A2 ST4.2 X 1.4 X 25 0Self Tapping Stainless Steel Screws For Roofing Fastening A2 ST4.2 X 1.4 X 25 1

     

     

     

     

     

     

     

     

     

     

     

     

    Contact Details
    Jiaxing Haina Fastener Co.,Limited

    Contact Person: Liz

    Tel: +8618957314886

    Send your inquiry directly to us (0 / 3000)

    Other Products