Elco Drilit Fasteners

 Elco Tap-Flex
 Elco Tap-Flex Fasteners

Self-Drilling Screws in the Most Popular Sizes

Self-drilling screws eliminate separate drilling and tapping operations for faster, more economical installations.

Features and Benefits

  • Eliminates separate drilling and tapping operations
  • Broad selection of sizes
  • Fasteners coated with Stalgard® finish typically show no red rust or other base metal corrosion on significant surfaces even after 1000 hours of 5% neutral salt spray exposure (per ASTM B117)

Specifications

  • Diameters: #8 to 5/16"
  • Lengths: 1/2" to 4"
  • Head Styles: Hex washer, slotted hex washer, pan and oval
  • Drive Systems: Hex and phillips
  • Material: Carbon steel
  • Finishes: Stalgard® coating or zinc plating

Elco Drilit Self-Drilling Screws Part Numbers

Standard Drill Screws

#8 Diameter, 1/4" Hex Washer Head

EDA236-I
EDA261-I
EDA286-I

#8 Diameter, #2 Phillips Pan Head

EDD251-I
EDD266-I
EDD291

#10 Diameter, 5/16" High Hex Washer Head

EDB401
EDB426
EDB446
EFC460-I
EDC450
EDB486
EDB541
EDB571

#12 Diameter, 5/16" Hex Washer Head

EDC745
EDB741
DB761
DB782
DB801
DB821
DB840
DB845

1/4" Diameter, 3/8" Hex Washer Head

EDB936
EDC930
EDB946
EDB956
EDB961
EDB971
EDB981
EDB983


 

Drill Screws with Extended Drilling Capacity

#12 Diameter Decking Drill Screws

EDC801
EDC816
ECC720
ECC740
ECC750

1/4" Diameter Decking Drill Screws

ECC940
ECC950
ECC960
ECC970
ECC980

Drilit® Drill Screws with Bonded Sealing Washers

#10 Diameter, 5/16" Hex Washer Head

EHL111
EHL146

#12 Diameter, 5/16" Hex Washer Head

EHL165
EHL351
EHL181
EHL235
EHL371
EHL276
EHL280
EHL295
EHL310
ECW725
ECW745
ECW755

1/4" Diameter, 3/8" Hex Washer Head

EHL515
EHK315
EHL530
EHL556
EHL577
EHL585
EHL600
EHL610


 

Drilit® Drill Screws for Wood-to-Metal Applications

#10 Diameter, #2 Phillips Wafer Head

EDM582
EDM592
DM607
DT602
DM622
DM635

#12 Diameter, #3 Phillips Wafer Head

EDT720

#12 Diameter, #3 Phillips Flat Head

EDT267
EDT282
EDJ867

1/4" Diameter, #3 Phillips Flat Head

EDT442
EDT470


Other Elco Fastener Lines