Note: Special Prices Available on Partial Cases of Elco Dril-Flex Structural Screws
Call us 1.972.417.8882/ toll free 1.877.424.7616 or e-mail us at support@hurripanel.com for more information.

5/16'' Diameter


Home > Dril-Flex Structural Self-Drilling Screws > 5/16'' Diameter


Dril-Flex Structural Self-Drilling Fasteners Dril-Flex screws are engineered and processed to help prevent hydrogen-induced brittle failures. Each fastener undergoes the unique Flex Technology? dual-hardening process, ensuring the optimal combination of ductility and hardness required for maximum performance in the field. Stalgard? coating provides additional corrosion resistance.

Testing of this product, in accordance with ASTM standards, has proven that Dril-Flex screws provide the same resistance to hydrogen-assisted cracking (HAC) as a Grade 5 screw.

View Technical Guide (pdf)

View Flash Animation: Product Features and Installation
Dril-Flex is dual-hardened for strength and ductility
Made in the U.S.A.??


#10 Diameter #12 Diameter 1/4" Diameter 5/16" Diameter


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1/4" X 6" Quickhammer SDS Drill Bit

1/4" X 6" Quickhammer SDS Drill Bit

1/4" X 6" tungsten carbide-tipped SDS bit designed for exceptional performance when drilling in concrete, marble, tile, plaster and other masonry materials. For use with SDS plus hammer drills ONLY. Perfect for installing 5/16" fasteners up to 3-1/4"
$8.43
1/4" X 9" Quickhammer SDS Drill Bit

1/4" X 9" Quickhammer SDS Drill Bit

1/4" X 9" tungsten carbide-tipped SDS bit designed for exceptional performance when drilling in concrete, marble, tile, plaster and other masonry materials. For use with SDS plus hammer drills ONLY. Perfect for installing 5/16" fasteners up to 6" lon
$13.57
Dril-Flex Structural Self-Drilling Screws: 5/16-18 x 1-1/2, #3 Point, Box of 500

Dril-Flex Structural Self-Drilling Screws: 5/16-18 x 1-1/2, #3 Point, Box of 500

5/16-18 x 1-1/2" structural self-drilling screw with hex washer head and silver Stalgard finish. #3 point can drill steel and aluminum applications up to .150" thick. Maximum load-bearing area: .850".
$455.12
Dril-Flex Structural Self-Drilling Screws: 5/16-18 x 1-1/2, #3 Point, Case of 1000

Dril-Flex Structural Self-Drilling Screws: 5/16-18 x 1-1/2, #3 Point, Case of 1000

5/16-18 x 1-1/2" structural self-drilling screw with hex washer head and silver Stalgard finish.
$956.42
Dril-Flex Structural Self-Drilling Screws: 5/16-24 x 1-1/2, #3 Point, Box of 500

Dril-Flex Structural Self-Drilling Screws: 5/16-24 x 1-1/2, #3 Point, Box of 500

5/16"-24 x 1-1/2" structural self-drilling screw with hex washer head and silver Stalgard finish. Can drill steel up to 0.187" thick and aluminum up to 0.25" thick. Maximum load-bearing area: 0.85".
$455.12
Dril-Flex Structural Self-Drilling Screws: 5/16-24 x 1-1/2, #3 Point, Case of 1000

Dril-Flex Structural Self-Drilling Screws: 5/16-24 x 1-1/2, #3 Point, Case of 1000

5/16"-24 x 1-1/2" structural self-drilling screw with hex washer head and silver Stalgard finish. Can drill steel up to 0.187" thick and aluminum up to 0.25" thick. Maximum load-bearing area: 0.85".
$956.42
Dril-Flex Structural Self-Drilling Screws: 5/16-24 x 2, #3 Point, Box of 500

Dril-Flex Structural Self-Drilling Screws: 5/16-24 x 2, #3 Point, Box of 500

5/16"-24 x 2" structural self-drilling screw with hex washer head and silver Stalgard finish. Can drill steel up to 0.187" thick and aluminum up to 0.25" thick. Maximum load-bearing area: 1.35".
$540.48
Dril-Flex Structural Self-Drilling Screws: 5/16-24 x 2, #3 Point, Case of 1000

Dril-Flex Structural Self-Drilling Screws: 5/16-24 x 2, #3 Point, Case of 1000

5/16"-24 x 2" structural self-drilling screw with hex washer head and silver Stalgard finish.
$1,028.79
UltraCon Concrete Screws: 5/16 x 3, Oversized Flat Head, Silver Stalgard Finish, Case of 500

UltraCon Concrete Screws: 5/16 x 3, Oversized Flat Head, Silver Stalgard Finish, Case of 500

Door frame fastener with oversized flat head and #3 phillips drive. No drill bit included in case.
$115.13
UltraCon Concrete Screws: 5/16 x 4, Oversized Flat Head, Silver Stalgard Finish, Case of 500

UltraCon Concrete Screws: 5/16 x 4, Oversized Flat Head, Silver Stalgard Finish, Case of 500

Door frame fastener with oversized flat head and #3 phillips drive. No drill bit included in case.
$126.41
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Hurripanel Fasteners Inc.
2128 Springwood • Carrollton, TX 75006 support@hurripanel.com
1.972.417.8882 or toll free 1.877.424.7616 -
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