Self-drilling Screw

Some self-tapping screws are also self-drilling, which means that in addition to the thread-forming section there is also a fluted tip much like the tip of a center drill.

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Self-drilling screws combine hole drilling, threading and fastener installation into one driving motion (instead of separate drilling, tapping, and installing motions); they are thus very efficient in a variety of hard-substrate applications, from assembly lines to roofing. Some types incorporate a sealing washer, for fastening roofing sheets to purlins.


Self Drilling Screw
StandardDIN   / GB / UNC / BSW /JIS etc.
ASME B18.6.4 & SAE J78  DIN7504K, DIN7504P,DIN7504N
Diameter#4-1/2”
Length10-180mm   (3/8”- 7”)
MaterialCarbon Steel / Stainless Steel
Head typeflat CSK, oval, pan, fillister, truss, hex, hex washer, round, cheese
Drive typePhil, slotted, torx, square, phil& slotted combination
Thread TypeBSD, CSD
Grade2.9, 3.5, 4.2, 4.8, 5.5, 6.3;A2-70   A4-70 A4-80 etc.
FinishZinc Plated(Clear/Blue/Yellow/Black),HDG, PTFE.
EquipmentsCaliper, Salt spraying tester.
CertificateISO9001 ISO14001 ISO45001 SGS
Supply Ability10000 ton per Month
MOQAccording to customer demand
Trade TermFOB/CIF/CFR/CNF/EXW/DDU/DDP
PaymentT/T, L/C, West Union, Paypal. Etc


Materials

Steel Alloy: Carbon Steel / Die Steel / etc.

Aluminum Alloy: 5052 /6061/ 6063 / 2017 / 7075 / etc.

Brass Alloy: 3602 / 2604 / H59 / H62 / etc.

Stainless Steel Alloy: 303 / 304 / 316 / 412 / etc.

We handle many other type of materials. Please contact us if your required material is not listed above.


Please let us know the size, quantity, material or grade, surface you need. If it is special and Non-standard products, please provide us the drawing or photos or samples to us in order to further assistance.


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Contact: Lynn/Yuri

Phone: +86-15072059381

E-mail: lynnwang@youjitrading.com

Add: Yongnian District, Handan City, Hebei Province