Self-drilling screws are easy to distinguish if you look at their point, which curves gently at the end and is shaped like a twist drill. They're often called Tek Screws, after the brand name that popularized them. Self-drilling screws are also called tek screws. Its drill bit tips are numbered from #1 up to #5, indicating the length of the flute, which determines the metal thickness the screw can drill into. The bigger the number is, the thicker the metal a screw can go through. The hex head self-drilling screws have three main types of drill points, Tek 3, Tek 4, and Tek 5. There's also Tek 1 self-drilling hex head screw, whose point is also called reduced drill.

 

Q1: Are you a trading company or manufacturer?
A1: We are a leading, professional, and premium screw manufacturer and exporter since 2008.  You can furtherly know our company via YouTube and WeChat Channel, or online visit our factory via Live Video Call on WeChat or WhatsApp, or visit our factory by yourself.
Q2: What are your Hot Sale Products?
A2: We mainly produce and export premium quality Drywall screws, Chipboard screws, Self Drilling Screws, Self Tapping Screws,  Pan framing head self-drilling screws, Pan framing head self-tapping screws,  Gypsum Screw, and Roofing Screws, etc.
Q3: What standard do you produce screws?
A3: We can produce according to DIN standards, ISO standards, GB standards, ANSI standards, JIS standards, Manufacturer standards, and customer-required standards.
Q4: Can you accept OEM orders?
A4: Yes, we can accept OEM or ODM orders and customized orders.
Q5. Can you provide Test Report?
A5: Yes, we can provide Factory Test Report or Manufacturer Test Report for you from our company. And you also can entrust the Third Party to test your order before shipping like SGS, BV, etc.
Q6: Can you provide technical support and after-sales service?
A6: Yes, we can provide you with the technical solution and after-sale service for fastener Products.
Q7. Can you provide samples?
A7: Yes, We can supply free samples for customers.
Q8: What are your payment terms?
A8: By T/T, L/C, Paypal, etc.
Q9: Can you finish customs clearance for an order?
A9: Yes, we can finish export customs clearance for your order in our country. We also can finish import customs clearance in the destination country according to customers' requirements.
Q10: How do we contact you?
A10: You can contact us at any time via Email,  WeChat, WhatsApp, Skype, Made-in-China Messenger Phone, etc. And we will reply to you within 24 hours.