Product Type

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Self Tapping Screws

Products Name: Self Tapping Screws

Features Specifications:

Thread size: #2 to #1/4 (M2.2 to M6.3)
Length: 3/16″to 8″(5 to 200mm)
Recess type: Phil, Pozi, Torx, Square, Slotted, Combo (Slot+Phil, Slot+Hex, Slot+Torx, Slot+Square), Hex etc.
Head type: Indented hex washer, Raise cheese, Pan, Flat, Oval, Round, Hex Flange etc.
Thread type: 60° thread angle;
Thread-Forming Tapping Screws: Type AB, Type B, Type BP, Type A, Type C etc.
Thread-Cutting Tapping Screws: Type BF, Type BT (Type 25), Type D (Type 1), Type F, Type G, Type T (Type 23), Type 17 etc.
Point: Cone, Flat, Cutting, Header etc.
Finish: Zinc Plated (Clear/White/Yellow/Black/Green), Black oxide, Coating (Geomet, Dacromet, Ruspert etc.), Nickel plating, Brass plating, Zinc-Nickel or Zinc-Iron alloy plating
Standard: IFI, DIN7981, DIN7982, DIN7983, DIN7971, DIN7972, DIN7973, DIN6928, DIN7976, DIN7970, JIS, BS, AS, EN14566 or Customized designs available
Others: Case harden required

 About Us
About William Specialty Industry Co., Ltd.
Located in Kaohsiung City (south of Taiwan), WILLIAM has been specializing in manufacturing construction screws for 20 years. WILLIAM specially focuses on Drywall Screws, Self Drilling Screws (TEK, Farmer Screws, Roofing Screws), Sheet Metal Screws, Self Tapping Screws, Chipboard Screws, Particle Board Screws, Wood Screws, Thread Rolling (Forming) Screws, Machine Screws, Concrete Screws, Window Screw, Deck Screws, Plastics Screws, and Socket Screws etc.

* Established in 1998
* Founder Mr. William Doong
* Capital USD3,700,000
* 68 employees
* New plant established in 2008
* Area of plant 12,560sqm

Dec. 1998 - founded by Mr. William Doong
Feb. 1999 - created packaging factory
Jan. 2001 - ISO9002:1994 certified
Sep. 2005 - ISO9001:2000 certified
Jun. 2006 - established Testing Lab and trained by Taiwan Accreditation Foundation (TAF)
Mar. 2008 - Testing Lab certified with ISO/IEC 17025:2005
Dec. 2008 - established new plant occupying 12,560 sqm
Nov. 2009 - ISO9001:2008 certified
Mar. 2011 - ISO 14001:2004 certified
July 2011 - CE EN 14566:2002+A1:2009 certified
Sep. 2013 - CE EN 14592:2008+A1:2012 certified
Dec. 2016 - ISO14001:2015 certified
Dec. 2017 - ISO9001:2015 certified