Steel Bolt
Bolt
Bolt
Screw
Metal Nail
Steel Bolt
Bolt
Bolt
Screw
Metal Nail
Product SKU: BIFLEX

Bi-Flex Bi-Metal Self-Drilling Structural Screws

Bi-Flex structural screws are bi-metal self-drilling tapping screws that provide the corrosion resistance of 300 series stainless steel and the efficiency of drill screws. Bi-Flex screws are suitable for use in both steel and aluminum.

This specialty fastener is commonly used in fastening of dissimilar metals.

Available in multiple diameters and lengths, as well as multiple heads, including HWH, phillips pan head, phillips undercut flat head, and phillips pancake head.

Documents

ELCO BIFLEX TP rB

Product SKU
Name
Diameter
Length
Quantity
Request a Quote
TEK101634T2BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 10-16 3/4" HWH SD 2 Bi-Flex No
10-16
3/4"
Request a Quote
TEK10161T2BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 10-16 1" HWH SD 2 Bi-Flex No
10-16
1"
Request a Quote
TEK1016112T2BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 10-16 1 1/2" HWH SD 2 Bi-Flex No
10-16
1 1/2"
Request a Quote
TEK12141T3BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 12-14 1" HWH SD 3 Bi-Flex No
12-14
1"
Request a Quote
TEK1214112T2BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 12-14 1 1/2" HWH SD 2 Bi-Flex No
12-14
1 1/2"
Request a Quote
TEK1214112T3BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 12-14 1 1/2" HWH SD 3 Bi-Flex No
12-14
1 1/2"
Request a Quote
TEK12142T2BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 12-14 2" HWH SD 3 Bi-Flex No
12-14
2"
Request a Quote
TEK1214212T3BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 12-14 2 1/2" HWH SD 3 Bi-Flex No
12-14
2 1/2"
Request a Quote
TEK14141T2BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 1/4-14 1" HWH SD 2 Bi-Flex No
1/4-14
1"
Request a Quote
TEK1414112T2BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 1/4-14 1 1/2" HWH SD 2 Bi-Flex No
1/4-14
1 1/2"
Request a Quote
TEK14142T2BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 1/4-14 2" HWH SD 2 Bi-Flex No
1/4-14
2"
Request a Quote
TEK14201T3BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 1/4-20 1" HWH SD 3 Bi-Flex No
1/4-20
1"
Request a Quote
TEK1420112T3BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 1/4-20 1 1/2" HWH SD 3 Bi-Flex No
1/4-20
1 1/2"
Request a Quote
TEK1224112T5BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 12-24 1 1/2" HWH SD 5 Bi-Flex No
12-24
1 1/2"
Request a Quote
TEK12242T5BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 12-24 2" HWH SD 5 Bi-Flex No
12-24
2"
Request a Quote
TEK14202T5BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 1/4-20 2" HWH SD 5 Bi-Flex No
1/4-20
2"
Request a Quote
TEK14203T5BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 1/4-20 3" HWH SD 5 Bi-Flex No
1/4-20
3"
Request a Quote
TEK14204T5BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 1/4-20 4" HWH SD 5 Bi-Flex No
1/4-20
4"
Request a Quote
TEK14205T5BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 1/4-20 5" HWH SD 5 Bi-Flex No
1/4-20
5"
Request a Quote
TEK14206T5BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 1/4-20 6" HWH SD 5 Bi-Flex No
1/4-20
6"
Request a Quote
TEK14208T5BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 1/4-20 8" HWH SD 5 Bi-Flex No
1/4-20
8"
Request a Quote
TEK12141T2PFHUBF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 12-14 1" Phillips Undercut Flat Head SD 2 Bi-Flex No
12-14
1"
Request a Quote
TEK1214114T2PFHUBF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 12-14 1 1/4" Phillips Undercut Flat Head SD 2 Bi-Flex No
12-14
1 1/4"
Request a Quote
TEK1214112T2PFHUBF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 12-14 1 1/2" Phillips Undercut Flat Head SD 2 Bi-Flex No
12-14
1 1/2"
Request a Quote
TEK14203PFHUT3BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 1/4-20 3" Phillips Undercut Flat Head SD 3 Bi-Flex No
1/4-20
3"
Request a Quote
TEK14204PFHUT3BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 1/4-20 4" Phillips Undercut Flat Head SD 3 Bi-Flex No
1/4-20
4"
Request a Quote
TEK101634PT2BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 10-16 3/4" Phillips Pan Head SD 2 Bi-Flex No
10-16
3/4"
Request a Quote
TEK10161PT2BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 10-16 1" Phillips Pan Head SD 2 Bi-Flex No
10-16
1"
Request a Quote
TEK12141PNCT3BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 12-14 1" Phillips Pan Head SD 3 Bi-Flex No
12-14
1"
Request a Quote
TEK1016112FT3BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 10-16 1 1/2" Phillips Flat Head SD 3 Bi-Flex No
10-16
1 1/2"
Request a Quote
TEK122421316FT5BF
Bi-Flex Bi-Metal Self-Drilling Structural Screws 12-24 2 13/16" Phillips Flat Head SD 5 Bi-Flex No
12-24
2 13/16"
Request a Quote
TEK142021316FHT5W
Bi-Flex Bi-Metal Self-Drilling Structural Screws 1/4-20 2 13/16" Phillips Flat Head SD 5 Bi-Flex No
1/4-20
2 13/16"
Request a Quote

Description

Bi-Flex self-drilling structural screws are manufactured by DeWalt ELCO. Thes fasteners are commonly used in aluminum to steel connections, aluminum to aluminum connections, or steel to steel connections. The 300 series stainless steel head and shank feature hardened steel tapping threads and drill point.

• 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 in dissimilar metal applications, including connections involving aluminum
• 18-8 stainless compatible with pressure treated lumber
• Custom fastener painting is available for all of our self-drilling screws, contact us for painting

Common applications include: dissimilar metal fastening, aluminum to steel, aluminum to aluminum, and curtainwall construction.