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Simpson Square Drive

Use this screw for fastening all types of wood decking, including cedar, redwood and preservative-treated woods. Bugle head provides for flush countersinking.
Choose your package size. Available in 1 lb, 5 lb, and Bucket quantities.

Products: 10 item(s)

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SIMPSON 8 x 1 1/4 Square Drive Deck Screws 305 Stainless Steel
SIMPSON 8 x 1 1/4 Square Drive Deck Screws 305 Stainless Steel
SIMPSON Bugle Head Square Drive Deck Screws. Driver bit included in every package. 305 Stainless Steel for general construction, industrial and marine applications.
$0.11
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SIMPSON 8 x 1 5/8
SIMPSON 8 x 1 5/8" Square Drive Deck Screw 305 Stainless Steel
SIMPSON Bugle Head Square Drive Deck Screws. Driver bit included in every package. 305 Stainless Steel for general construction, industrial and marine applications.
$0.09
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SIMPSON 8 x 2
SIMPSON 8 x 2" Square Drive Deck Screw 305 Stainless Steel
SIMPSON Bugle Head Square Drive Deck Screws. Driver bit included in every package. 305 Stainless Steel for general construction, industrial and marine applications.
$0.13
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SIMPSON 10 x 2 1/2 Square Drive Deck Screw 305 Stainless Steel
SIMPSON 10 x 2 1/2 Square Drive Deck Screw 305 Stainless Steel
SIMPSON Bugle Head Square Drive Deck Screws. Driver bit included in every package. 305 Stainless Steel for general construction, industrial and marine applications.
$0.19
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SIMPSON 10 x 3
SIMPSON 10 x 3" Square Drive Deck Screw 305 Stainless Steel
SIMPSON Bugle Head Square Drive Deck Screws. Driver bit included in every package. 305 Stainless Steel for general construction, industrial and marine applications.
$0.23
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SIMPSON 10 x 3 1/2
SIMPSON 10 x 3 1/2" Square Drive Deck Screw 305 Stainless Steel
SIMPSON Bugle Head Square Drive Deck Screws. Driver bit included in every package. 305 Stainless Steel for general construction, industrial and marine applications.
$0.31
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SIMPSON 12 x 4
SIMPSON 12 x 4" Square Drive Deck Screw 305 Stainless Steel
SIMPSON Bugle Head Star Drive Deck Screws. Driver bit included in every package. 305 Stainless Steel for general construction, industrial and marine applications.
$0.55
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Simpson #3 x 2
Simpson #3 x 2" Square Drive Premium Bit (2 pack)
SIMPSON Driver Bits. Our industrial-grade driver bits outperform sub-standard bits that strip and cam-out.
$4.69
Add To Cart
Simpson #1 x 2
Simpson #1 x 2" Square Drive Premium Bit (2 pack)
SIMPSON Driver Bits. Our industrial-grade driver bits outperform sub-standard bits that strip and cam-out.
$4.69
Add To Cart
Simpson #2 x 2
Simpson #2 x 2" Square Drive Premium Bit (2 pack)
SIMPSON Driver Bits. Our industrial-grade driver bits outperform sub-standard bits that strip and cam-out.
$4.69
Add To Cart

Key Features

  • Type-17 point for fast starts
  • Coarse threads approximately 2/3 up the shank draw the decking and other material tightly to the substrate
  • 350-count packs contain enough screws to fasten 100 sq. ft. of decking (6" nominal-width boards installed on 16" o.c. joists)
  • Driver bit included in each package
  • Pre-drilling recommended near board ends to prevent splitting
  • #6, #8 and #10 screws: #2 square drive (replacement bit model BIT2S-2)
  • #12 and #14 screws: #3 square drive (replacement bit model BIT3S-2)

Applications

  • Fasten all types of wood decking including cedar, redwood and preservative-treated woods