Impax™ self-drill screws


Secure your projects with the precision cold forged strength of Impax™ self-drill fasteners, offered in a wide range of dimensions and features


The comprehensive line of Impax™ self-drilling screws provides reliable yet economical fastening solutions for light, medium, and heavy gauge applications. Enhance the visual with VistaCoat® paint-matching from SFS. 

#12-14 Impax™ SD3

  • 5/16" AF hex washer head
  • #3 self-drill point
  • Available with or without bond seal washer
  • Drilling capacity: .035—.210"
  • Available lengths: 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3", 4"
Product Data Sheet | PDF

1/4-14 Impax™ Lap

  • 5/16" AF Hex washer head
  • #1 self-drill point
  • Available with or without bond seal washer
  • Drilling capacity: .030—.095"
  • Available lengths: 7/8"
Product Data Sheet | PDF

#12-14 Impax™ Sealer SD3

  • 5/16" AF Cupped hex washer head
  • #3 self-drill point
  • EPDM washer
  • Drilling capacity: .035—.210"
  • Available lengths: 3/4", 1", 1-1/4", 1-1/2"
Product Data Sheet | PDF

1/4-14 Impax™ Sealer Lap

  • 5/16" AF Cupped hex washer head
  • #1 self-drill point
  • EPDM washer
  • Drilling capacity: .030—.095"
  • Available lengths: 7/8"
Product Data Sheet | PDF

1/4-14 Impax™ SD2 & SD3

  • #2 self-drill point
  •  5/16" or 3/8" AF Hex washer head
  • Available with or without bond seal washer
  • Drilling capacity: .050—.150"
  • Available lengths (5/16" HWH): 1-1/4", 1-1/2"
  • Available lengths (3/8" HWH): 1" 3/8" AF Hex washer head
Product Data Sheet - SD2 (5/16") | PDF
Product Data Sheet - SD2 (3/8") | PDF
  • #3 self-drill point
  • 3/8" AF Hex washer head
  • Available with or without bond seal washer
  • Drilling capacity: .050—.210"
  • Available lengths: ¾", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3", 4"
Product Data Sheet - SD3 (3/8") | PDF

#12-24 Impax SD4.5

  • 5/16" AF Hex washer head
  • #4.5 self-drill point
  • Available with or without bond seal washer
  • Drilling capacity: .075—.375"
  • Available lengths: 1-1/4"
Product Data Sheet | PDF

12-24 Impax™ SD5

  • 5/16" AF Hex washer head
  • #5 self-drill point
  • Available with or without bond seal washer
  • Drilling capacity: .075—.500"
  • Available lengths: 1-1/4", 1-1/2", 2"
Product Data Sheet | PDF

1/4-20 Impax™ SD5

  • 3/8" AF Hex washer head
  • #5 self-drill point
  • Available with or without bond seal washer
  • Drilling capacity: .105"—.500"
  • Available lengths: 3", 4", 5", 6", 7", 8"
Product Data Sheet | PDF

#10-16 Impax™ SD3

  • 5/16" AF Hex washer head
  • #3 self-drill point
  • Available with or without bond seal washer
  • Drilling capacity: .035—.150"
  • Available lengths: 3/4", 1", 1-1/2"
Product Data Sheet | PDF

#8-18 Impax™ SD2

  • 1/4" AF Hex washer head
  • #2 self-drill point
  • Available with or without bond seal washer
  • Drilling capacity: .035—.140"
  • Available lengths: 1/2", 3/4"
Product Data Sheet | PDF

#12-14 410 Stainless SD3

  • 5/16" AF Hex washer head
  • #3 self-drill point
  • Available with or without bond seal washer
  • Drilling capacity: .035—.210"
  • Available lengths: 1", 1-1/4", 1-1/2"
Product Data Sheet | PDF

1/4-14 410 Stainless Lap

  • 5/16" AF Hex washer head
  • #1 self-drill point
  • Available with or without bond seal washer
  • Drilling capacity: .030— .095"
  • Available lengths: 7/8"
Product Data Sheet | PDF
Call 1-800-234-4533 to discuss with one of our knowledgeable team members which Impax self-drill screw corresponds with your project specifications.  Further your knowledge with 300 vs 400 stainless steel, Fine thread versus coarse thread screws, and How to replace metal roof screws.
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