|Rongda Industrial Park, Xinhua Road, Wangting Town, Suzhou City, China|
|Place of Origin:||Jiangsu, China|
|Minimum Order Quantity:||Negotiable|
|Packaging Details:||bulk packing, small box packing, packing as required|
|Delivery Time:||10-25 working days|
|Payment Terms:||T/T, L/C, D/P|
|Supply Ability:||400 ton per month|
|Material:||C1022, SUS201, SUS410, SUS304, SUS316, A2-70, A2-80, A4-80||Coating:||Plain, Black Oxide, Gray, Paint, HDG, Ruspert, Nickel|
|Sizes:||#4--#14 (2.9~6.3)||Thread:||Full Thread, Partical Thread|
|Length:||3/8''~8'' (9.5mm~203mm)||Packing:||Bulk Packing, Small Box Packing, Plastic Bag Packing|
Particle Board Decorative Self Threading Metal Screws For Thick Steel Right Hand Threads
Sheet metal screws have a pointed end and widely spaced threads. They're self-starting in thin sheet metal, but in thicker materials a drilled hole is recommended.
Stainless steels are used for their corrosion resistance, high-temperature strength, scaling resistance, and low-temperature toughness. These properties account for their extremely wide use in practically every industry. Austenitic Stainless Steels are alloys of iron and carbon that contain between 16% and 30% Chromium, a maximum of 0.15% carbon, along with Nickel (or Manganese), and other alloying elements. The chromium, which helps develop a passive surface oxide film, provides corrosion resistance in stainless steels. Austenitic Stainless Steels are designated by a 3 digit SAE Stainless Steel Grade beginning with the number 3 (e.g. 304, 316). Another common naming convention for Austenitic Stainless Steels are 18/8, 18/10, 18/0, etc. where the 18 refers to the % of Chromium and 8 to the % of Nickel contained in the material.
Flat head fasteners are designed to fit flush to the surface when used with countersunk holes. Length is measured from the top of the head. The Phillips drive style was originally designed so that the driver would slip out under extreme torque, preventing over-tightening and damage to the fastener or the material. Self-Drilling Points are excellent for use with sheet metal.
1. Name: DIN7504P flat head self drilling screws, countersunk head tek screws
2. Grade: C1018, C1022, SUS201,SUS410,SUS304,SUS316,A2-70,A2-80,A4-80
3. Size: 2.9x10mm--6.3x200mm
4. Standard: DIN7504P
5. Certification: ISO9001, SGS, CTI, ROHS
DIN7504P flat head self drilling screws
stainless steel, carbon steel, alloy steel, brass and so on
zinc plated Cr+6, zinc plated Cr+3, polished, HDG, ruspert, nickel
DIN GB ISO JIS BA ANSI
C1018, C1022, SUS201, SUS304, SUS316, A2-70, A2-80, A4-80
Type BSD, Type ASD, Type CSD, with wings, with cutting thread
philips, pozi, socket, hex, square, slotted, combined
Self-drilling screws have hardened drill points that will drill and thread in structural steel, mild steel, aluminum and wood. These drill points are manufactured in the same method as the high speed drill bits. Self-drilling screws are available in a variety of finishes with unique product features to suit a wide range of environmental conditions.
4. Drawing Specifications:
|Self Drilling Screws, Type BSD – SAE J78-1998|
|Nominal Size or||Threads||T||t||P||Min. Practical Nominal||Minimum|
|Basic Screw||Per Inch||Screw Lengths||Torsional|
|Major Diameter||Minor Diameter||Protusion Allowance||(lb.-in.)|
|Min||Max||Min||Max||#2 Pt.||#3 Pt.||90° Head||Csk Head||90° Head||Csk Head||Steel Screws|
|#2 Pt||#2 Pt||#3 Pt||#3 Pt|
|* Specs for #7 diameter drill screws are not included in SAE J78 at this time.|
1.The Special technology treatment of the surface makes the product anti-corrosion , antirust and durable.
2.Exact forging standard of knife edge and high hardness of surface make it easy to drill.
3.Using the advanced technology to control the core hardness, avoiding rupture effectivity,
4. Quick self drilling , drilling , tapping, locking the oncce, and combining with the strength.
5. Save contruction time, improve working efficency.
6. Technology, professional manufacturing , quality assurance.
6. More pictures:
DIN7504P CSK HEAD SELF DRILLING TEK SCREWS
Contact Person: Tom