|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:||10-20 working days|
|Payment Terms:||T/T, L/C|
|Supply Ability:||300 ton per month|
|Material:||Stainless Steels, Carbon Steel, Alloy Steel||Head:||Countersunk Head, Flat Head|
|Sizes:||#4--#14 (2.9~6.3)||Length:||3/8''~8'' (9.5mm~203mm)|
|Recess:||Philips, Square, Pozi, Slot, 6 Lobe, Combined||Point:||#1~#5 Drill Point With Wings|
self drilling fasteners,
self threading bolts for metal
CSK Rib Head 3 4 8 16 Inch Tek Self Drilling Screw With Wings For Aluminium Combinition
1. Name: Wing Tek self drilling screws csk head, self drilling screw with wings
2. Grade: C1018, C1022, SUS201,SUS410,SUS304,SUS316,A2-70,A2-80,A4-80
3. Size: #4x3/8''~~#14x8''
4. Standard: DIN, AS3566, BS, JIS, ISO, per customer drawing or sample
5. Certification: ISO9001, SGS, CTI, ROHS
6. Thread Type: Type BSD, Type ASD, Type CSD, with wings, with flute, with Notch
8. Recess: philips drive, square drive, pozi drive, torx drive, slot drive, 6-Lobe drive
9. Packing: bulk packing, small box packing, plastic box packing, as customer requirements
Self Drilling Screws, Also Known as TEK Screws, Drill Point, Self Drillers and Self Tapping
Self Drilling Screws are used primarily when fastening into steel or other metals and are typically used to join materials like sheet metal.
Point Wings are used on some screws that fasten thicker materials, such as wood, to metal. The wings enlarge the hole in the fastened material, allowing the threads to pass through without contacting the fastened material. This added clearance prevents separation of the fastened material from the base metal (known as "jacking"). The wings will break away on contact with the metal before the threads engage in the metal..
4. Type BSD and CSD Self-Drilling Screw Mechanical & Performance Data
|Description||Type BSD: A tapping screw with spaced threads and a drill point which drills its own hole.|
|Type CSD: A wafer head thread forming screw with machine screw thread pitch and a drill point which drills its own hole.|
|Both types allow the screw to form mating threads and produce a complete fastening system in a single operation.|
|Applications||Type BSD: May be used to attach plywood, soft woods or composition board to metal, or attach metal to metal.||Type BSD: The 18-8 stainless drill screw offers superior corrosion resistance while the 410 stainless screw will drill through harder material than the 18-8 screw. Hardness of the drilled material should be Rockwell 10-20 minimum. They are commonly used in metal sheeting industries. Minimum torques are the same stainless and steel self-drill screws. Drill time is 2.5 seconds for a 1mm thick plate.|
|and||Type CSD: The finer thread pitch reduces friction and driving torques.|
|Advantages||Type CSD screws are normally used with thicker materials. The wafer head design allows the screw to set flush in wood and softer materials and provides a clean, finished appearance.|
|All self-drilling screws offer economical benefits: Reduces labor and tooling costs; reduces or eliminates drill bits and taps.|
|Material||AISI 1016 – 1024 or equivalent steel||18-8 or 410 stainless steel|
|Heat||Screws shall be quenched in liquid and then tempered by reheating to 625°F minimum.||410 stainless screws shall be hardened and tempered by heating to 1800° – 1900°F sufficient for austenitization, held for at least 1/2 hour and rapid air or oil quenched then reheated to 500° – 600°F for at least 1 hour and air cooled to provide the hardness specified below.|
|Case Hardness||Rockwell C52 – C58||410 stainless: Rockwell C55 minimum|
|Case Depth||No. 4 and 6 diameter: .002 – .007||Not Tested|
|No. 8 thru 12 diameter: .004 – .009|
|1/4″ diameter and larger: .005 – .011|
|Core Hardness||Rockwell C32 – C40 after tempering||410 SS – Rockwell C45 minimum|
|18-8 SS – Rockwell B90 – C24 Appx.|
|Plating||Normally supplied plain|
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. Why choose us:
|1||High quality||we make 100% quality test before shipping|
|2||Much experience||we have been in this line for more than 20 years|
|3||Cheaper prices||the same or better quality, but cheaper and competitive prices|
|4||Free samples||we can send you all the samples free|
|5||Earlier response||we can send you prices soonest within 2 hours or one day|
|6||Good services||we supply OEM, ODM,OBM services and best after-sale services|
|7||Punctual delivery:||we can ship every order on time|
6. More pictures:
Wing Tek Self Drilling Screws, Self Drilling Screw, Winged
Contact Person: Tom