Self Drilling Screws

Custom Screws Manufacturer


Self Drilling Screws


Heatfastener is a professional custom self drilling screws manufacturer and supplier. It is a collection of scientific research, development, design, production, and sales as one of the diversified enterprise groups specialized in producing custom screws, custom bolts, nuts, and other custom fasteners according to GB, DIN, ANSI, JIS, ISO, JB, etc. Standards. We have successfully provided solutions for clients from over 90 countries. Our mission is to become a premier provider of high-quality fastening products to original equipment manufacturing markets. We promise on-time delivery and competitive pricing. Heatfastener is committed to fulfilling all customer requirements as promised and to developing and maintaining long-term business relationships through treating its customers with honesty, integrity, and respect. While we believe our motto describes the focus of our business, our commitment to honesty, integrity, and respect sets us apart from many other companies. When you do business with Heatfastener, you are assured that what we promise is what we deliver

With ISO9001:2008,iso14001:2004, and especially IAFT16949:2009 certification for the automotive industry. Heatfastener offers fully customized custom bolts and screws according to your needs. We can bring your fastener design to reality, and everything according to your requirements.

self drilling screws

Self Drilling Screws Details

A self-drilling screw also known as Tek screws is a type of self-tapping screw that also features a drill point. The sharp drill point will both drill a hole and form the mating threads in a single operation.

Self drilling screws come in different lengths, materials. We can also manufacture these items in special materials and custom made as below listed:


  • Stainless steel – SS302, SS304, SS316, (good tenacity),Stainless steel A2 A4
  • Steel – C45(K1045), C46(K1046),C20
  • Brass – C36000 ( C26800), C37700 ( HPb59), C38500( HPb58),C27200CuZn37), C28000(CuZn40)
  • Bronze–C51000, C52100, C54400, etc
  • Aluminum – Al6061, Al6063 etc
  • Carbon steel – C1006,C1010,C1018,C1022,C1035K,C1045
  • Alloy steel – SCM435,C10B21,C10B339
  • Other material– Titanium, UNS C11000 Copper,silicon


  • Grade: Grade 4.8,Grade 6.8,Grade 8.8,Grade10.9,Grade12.9 etc
  • Standard:GB,DIN,ISO, ANSI/ASTM,BS,BSW,JIS, Metric, Inch
  • Finish:Plain, H.D.G, Black oxide, Chrome, Teflon,dacromet,Anodized,With nylok,Galvanized
  • Certificates: ISO9001:2015, ISO14001:2015,IATF16949, ROHS
  • Custom Made:OEM is available,according to customer requirments

Head type&Drive Type

  • Head Type:Flat, Oval, Binding, Pan, Round, Truss, Button, PF,Cheese,Fillister, Pan Washer, Cylinder,Hexagon, Indented Hexagon,Washer
  • Drive Type:Phillips, Slotted, Phiilips/Slotted, 6 Lobe, Pin 6 Lobe, Pozidrive, Square, Triangle,Y type. Tri-wing, S-type, H type, Hexagon, 5 Point,8 point, Spline, Spanner, Clutch, Hex pn,torx pin
  • Machine Screw, Tapping screws,threading cutting screw,threading forming screw


Teks Drill Point Nonwalking, cutting edges, pigtail reduction Engages material faster, drills with less effort, safer installation ◈Load bearing area Selectively hardened to retain strength and ductility performance similar to a Grade 5 bolt Resists shear failure due to loading and different expansion coefficients in dissimilar metals ◈Installs faster Drills and taps faster with fewer stalls Reduces installation time and money ◈Climaseal ACR Coating provides long life protection Fewer replacements

What are self drilling screws used for?

Self drilling screws have a point that acts as a drill bit and sharp cutting threads that tap the hole during installation. Self drilling screws are a commonly used variety of screws for quick drilling into both metal and wood. A self drilling screw can typically be identified by its point and flute (notch) tip.

Also, our custom fastener, bolts, screws are widely used in the below industries

  • Electronics
  • Petrochemicals
  • Consumer products
  • Transportation
  • Agriculture
  • Heavy machinery
  • Construction
  • Automotive
  • Medical
  • Military
  • Aerospace
  • Oil and gas
  • Self drilling metal screws
  • Self drilling wood screws
  • self drilling drwall screws
  • Self drilling masonry screw
  • self drilling anchor screws
  • Self drilling decking screws


  • Speed of installation:Thread design to lock panels in place
  • High precision:cut point for quick panel penetration
  • Custom made:Non standard parts development and produce expert
  • High quality material for long service time

We supply all kinds of custom self drilling screws and bolts from Micro M1 to Large long M40

(#7)3.99.7-10.1 1.9-2.5 1.33.73-3.913-50
(#10)4.810.6-11.1 1.9-2.5 1.64.62-4.813-76
wafer truss head self drilling screws
dskwith washer
M4.87.84 customized
M5.285.5 customized
M6.39.455.8 customized
Washer head self drilling screw dimensions

About Us

Shenzhen Heat Hardware Co., Ltd is a leading custom screw manufacturer in China founded in 2000 years. We are specializing in custom screws, security screws, Sems screws, Chicago Screws, Weld Screws, Long screws, Micro Screws, Thumb Screws, Set Screws, Custom bolts, carriage bolts, nuts, and other custom Fasteners. With more than 20years of industry experience. We have serviced over 20000customers including the aerospace industry, automotive industry, electronics, mechanical and electrical products, robots, the Medical industry, communications industry, Outdoor sports products, smart appliances, etc. we can provide one-stop fastener customized service for you no matter what kind of custom fastener you need.

Frequently Asked Questions

They are measured from the top of the head to the tip. Hex and hex washer head screws and bolts, although flat on the top and the bottom, are measured from the bottom of the head. From that point to the tip is the length of the screw. Self drilling screws are measured all the way to the end of the drill point tip.

 While self-tapping screws will tap a hole into a soft material, self-drilling screws are capable of drilling a hole into anything from metal to wood. This key difference is self-drilling screws have a tip like a drill bit, so they do not need a pilot hole.

Self-drilling screws eliminate the need for a pilot hole but can tap as well. Self-tapping screws tap their own threads, but cannot drill through metal and require a pilot hole. These screws are not interchangeable, and mixing up the two can cause many headaches or possible failures in the field.

Phillips modified truss head self drilling screws feature a Phillips drive and a self drilling (TEK) point to pierce through 20 to 14 gauge metals. The threads on these screws also cut their own threads into either wood, plastic or sheet metal. Phillips modified truss head screws feature an oversized domed head with a flange, similar to an integral washer. Modified truss head screws have a 100-degree undercut which creates a larger area beneath the screw’s head for a larger bearing surface.

Do you need a drill for self-tapping screws? No, self-tapping screws can simply be inserted with either a screwdriver. However, it’s better to drill a small pilot hole before the you drill the screw

To summarise: Self-Tapping – a screw for securing thinner sheet metals and other substrates that cuts its own thread, but usually requires a predrilled or pre-punched hole. Self-Drilling – a screw that can, well, self-drill through various gauges of metal materials without predrilling.

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