Self Drilling Screws

Self Drilling Screws

General features of Lotus Self Drilling Screws

  • Hex washer head assembled with EPDM washer for safe sealing and long life
  • High speed drilling point
  • Surface hardened with additional carbon (C-1022 steel)
  • Thread Count (tpi: threads per inch) as per international standards
  • Conforms to ANSI (American National Standards Institute) quality control standards SAE J78-2013

Screws guage metric equivalent of self drilling screws:

  • 4 guage: 2.9mm thick
  • 6 guage: 3.5mm thick
  • 8 guage: 4.2mm thick
  • 10 guage: 4.8mm thick
  • 12 guage: 5.5mm thick
  • 14 guage: 6.3mm thick

Sizes of Hex Washer Head Screws:

  • 10g x 16 tpi x 20mm - Full Thread
  • 12g x 14 tpi x 25mm - Full Thread
  • 12g x 14 tpi x 35mm - Full Thread
  • 12g x 14 tpi x 45mm - Full Thread
  • 12g x 14 tpi x 55mm - Full Thread
  • 12g x 14 tpi x 55mm - Double Thread

Silver Grey Ruspert (SR/GR Screws):

Features Range
- Anti Corrosive Zinc plus Aluminum coating (Ruspert coating) on the surface
- Silver Grey Matte Finish
- Indented Hex Washer Head - Full Thread
- Indented Hex Flange Washer Head - Full Thread
- Indented Hex Flange Washer Head - Double Thread with lock on shank

Zinc Plated (ZP Screws)

Features Range
- Surface coating with clear zinc
- 10 guage screw suitable for drilling 4mm thick steel
- 12 guage screw suitable for drilling 8mm thick steel
- Indented Hex Washer Head - Full Thread
- Indented Hex Flange Washer Head - Full Thread

Flat Head

Flat Head Features

Truss Head

Truss Head Features


- CSK Head (Counter Sunk Flat Head)
- Case Hardened and Clear Zinc plated
- Suitable for drilling 3mm thick steel
- Drill point No.2

Sizes
Flat Head
# 8-18 x 19mm
# 8-18 x 25mm


- Button type head
- Case hardened clear zinc plated
- Suitable for drilling 3mm thick steel
- Drill point No.2

Sizes
Truss Head
# 8-18 x 19mm
# 8-18 x 25mm

Download Specifications