Elco 1/4-20 x 4 Self-Drilling Undercut Flat Head Screw with #3 Phillips Drive and #3 Point

Elco 1/4-20 x 4 Self-Drilling Undercut Flat Head Screw with #3 Phillips Drive and #3 Point

The Elco 1/4-20 x 4 Self-Drilling Undercut Flat Head Screw with #3 Phillips Drive and #3 Point is part of their Bi-Flex 300 Series, Bi-Metal Self-Drilling Screw line.  They provide the corrosion resistance of 300 series stainless steel and the efficiency of drill screws. The shank and head of this self-drilling screw is designed for performance and are resistant to embrittlement failures. The Stalgard® (Galvanic Barrier) coating minimizes galvanic interactions, making it a perfect choice for dissimilar metal applications. They are good to use for steel-to-steel, aluminum-to-steel, aluminum-to-aluminum and wood-to-steel connections.

Features and Benefits

• High strength, ductility and reliability
• Immune to hydrogen assisted stress corrosion cracking (HASCC)
• Higher corrosion resistance compared with carbon steel and 410 series stainless steel fasteners
• Stalgard GB coating creates greater galvanic compatibility with dissimilar metal applications involving aluminum
• 18-8 stainless compatible with pressure treated lumber

Specifications

• Box of 500 pcs
• Model# EBN640
• Diameter: 1/4″
• Length: 4″
• Material: Stainless Steel
• Steel Grade: 18-8
• Finish: Stalgard® GB
• Drive Type: Phillips
• Head Type: Flat Undercut
• Point Size: #3
• Point Type: Self-Drill
• TPI: 20
• Thread Size: 1/4″-20
• Driver Size: #3
• Drive Size: 6873

Approvals & Listings

• International Code Council, Evaluation Service (ICC-ES), ESR-4367
• International Code Council, Evaluation Service (ICC-ES), ESR-4374
• Code compliant with the International Building Code/International Residential Code: 2021 IBC/IRC, 2018 IBC/IRC, 2015 IBC/IRC and 2012 IBC/IRC
• 2020 Los Angeles Building Code (LABC) and Los Angeles Residential Code (LARC) ICC-ES Report Supplement
• 2020 Florida Building Code (FBC) ICC-ES Report Supplement
• Tested in accordance with AISI S905 and ICC-ES AC500 for attaching Miscellaneous Building Materials to Steel
• Tested in accordance with ICC-ES AC491 for use in Aluminum

All available sizes of these screws are on clearance sale and priced to move! Further bulk pricing discounts may be available, so feel free to contact us at 1 (800) 267-2308 and ask for an E-Commerce Representative. You can also email us at internetsales@crssupply.com.