En
WeChat
01
    Roof Installation
    Sheet metal screws, Self drilling, pan head, Stainless steel 410,Possess good corrosion resistance.The screw is a tool that uses the physics and mathematics of the oblique circular rotation of the object and the friction force to gradually tighten the objects and parts. A self-drilling screw is a sc......[ More ]
02
    Thin Steel Plate Installation
    The tail of the self-drilling screw has a tail-drilling or pointed tail shape, and no auxiliary processing is required. It can be directly drilled, tapped and locked on the set material and basic material, which greatly saves construction time. Compared with ordinary screws, its toughness and holdin......[ More ]
03
    Construction Sector
    When using screws, if you can first understand the mechanical properties of the screws, then you can use the screws better. Different types of screws have different mechanical properties, and the different mechanical properties lead to different occasions when screws are used.Heart hardness: standar......[ More ]
04
    Window Area
    1.Heart hardness: standard value HRC28-38. The test is carried out on a section 1-2 times the nominal diameter from the tail. If the nominal length is too short, it can be embedded first, and then the hardness is measured.2.Surface hardness: standard MIN HV450.3.carburized layer: standard 4#-6#: 0.0......[ More ]
05
    Workshop roof
    Wallboard nails1. Heart hardness: Standard: HRC24-45.2. Surface hardness: standard: HV600-800.3. Carburized layer: 4#-6#0.05-0.18mm, 8#-12#0.10-0.23, 14#0.13-0.28.4. Curvature: 150-450 required5. Salt spray test: generally MIN48h.6. Torque: Specification 6#7#8#10# Torque 21283558.Self-drilling screw......[ More ]
06
    Railway station roof
    1. Heart hardness: standard value HRC28-38. The test is carried out on a section 1-2 times the nominal diameter from the tail. If the nominal length is too short, it can be embedded first, and then the hardness is measured.2. Surface hardness: standard MINHV450.3. Carburized layer: standard 4#-6#: 0......[ More ]
共6条 当前1/1页首页前一页1后一页尾页

Contact Us

Add: Beiduanzhuang Industrial Zone,Yongnian HanDan,China.
Mobile:+86 137 3004 3377
Email: lz@xj-fastener.com
Start a project→