Structural, Lag & Construction Screws

Structural, lag and construction screws: structural wood screws, washer-head lag screws, timber screws and multi-material construction screws in hex, Torx and star drives, up to 10 in. long. Brands include SPAX (PowerLags, Multi-Material), FastenMaster (HeadLok, FlatLok, LogHog), GRK Fasteners, Grip-Rite and Simpson Strong-Tie.

Structural screws are used in place of lag bolts for ledgers, posts and timber work. For structural connections, follow the maker's spacing and load tables. Part of Screws.

SPAX PowerLags 1/4 in. X 5 in. L Star Washer Head Serrated Structural Screws

SPAX PowerLags 1/4 in. X 5 in. L Star Washer Head Serrated Structural Screws

Regular price $13.31 USD

Regular price Sale price $13.31 USD
Unit price per
MSRP $17.79
SPAX PowerLags 5/16 in. X 6 in. L Washer High Corrosion Resistant Carbon Steel Lag Screw 1 pk

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SPAX PowerLags 5/16 in. X 6 in. L Washer High Corrosion Resistant Carbon Steel Lag Screw 1 pk

Regular price $2.73 USD

Regular price Sale price $2.73 USD
Unit price per

$2.73 per pack · $68.25 per case of 25

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SPAX PowerLags 1/4 in. X 3-1/2 in. L Star Washer Head Serrated Structural Screws

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SPAX PowerLags 1/4 in. X 3-1/2 in. L Star Washer Head Serrated Structural Screws

Regular price $10.45 USD

Regular price Sale price $10.45 USD
Unit price per
MSRP $14.89

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SPAX PowerLags 1/4 in. X 6 in. L Hex Drive Hex Washer Head Serrated Structural Screws

SPAX PowerLags 1/4 in. X 6 in. L Hex Drive Hex Washer Head Serrated Structural Screws

Regular price $17.56 USD

Regular price Sale price $17.56 USD
Unit price per
MSRP $23.39
Grip-Rite No. 8 wire X 1-5/8 in. L Star Flat Head Coarse Construction Screws — 1466 pk

Grip-Rite No. 8 wire X 1-5/8 in. L Star Flat Head Coarse Construction Screws — 1466 pk

Regular price $48.40 USD

Regular price Sale price $48.40 USD
Unit price per
SPAX Multi-Material No. 14 Label X 2-1/2 in. L T30+ Flat Head Serrated Construction Screws

SPAX Multi-Material No. 14 Label X 2-1/2 in. L T30+ Flat Head Serrated Construction Screws

Regular price $16.39 USD

Regular price Sale price $16.39 USD
Unit price per
MSRP $19.09
$16.39 each · $81.95 per pack of 5
SPAX PowerLags 1/4 in. X 5 in. L Washer High Corrosion Resistant Carbon Steel Lag Screw 1 pk

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SPAX PowerLags 1/4 in. X 5 in. L Washer High Corrosion Resistant Carbon Steel Lag Screw 1 pk

Regular price $1.71 USD

Regular price Sale price $1.71 USD
Unit price per
MSRP $2.29
$1.71 per pack · $85.50 per case of 50

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Grip-Rite No. 8 wire X 1-3/4 in. L Star Flat Head Coarse Construction Screws — 143 pk

Grip-Rite No. 8 wire X 1-3/4 in. L Star Flat Head Coarse Construction Screws — 143 pk

Regular price $4.55 USD

Regular price Sale price $4.55 USD
Unit price per
MSRP $8.99
$4.55 per pack · $54.60 per case of 12
SPAX PowerLags 5/16 in. X 6-3/4 in. L T-40 Washer Head Serrated Structural Screws

SPAX PowerLags 5/16 in. X 6-3/4 in. L T-40 Washer Head Serrated Structural Screws

Regular price $237.97 USD

Regular price Sale price $237.97 USD
Unit price per
MSRP $269.49
SPAX PowerLags 1/4 in. X 5 in. L T-30 Washer Head Serrated Structural Screws

SPAX PowerLags 1/4 in. X 5 in. L T-30 Washer Head Serrated Structural Screws

Regular price $45.67 USD

Regular price Sale price $45.67 USD
Unit price per
SPAX PowerLags 5/16 in. X 4 in. L Washer Yellow Zinc Carbon Steel Lag Screw 12 pk

SPAX PowerLags 5/16 in. X 4 in. L Washer Yellow Zinc Carbon Steel Lag Screw 12 pk

Regular price $12.41 USD

Regular price Sale price $12.41 USD
Unit price per
MSRP $16.89
SPAX Multi-Material No. 14 Label X 1-1/2 in. L T30+ Flat Head Serrated Construction Screws

SPAX Multi-Material No. 14 Label X 1-1/2 in. L T30+ Flat Head Serrated Construction Screws

Regular price $16.39 USD

Regular price Sale price $16.39 USD
Unit price per
MSRP $22.59
$16.39 each · $81.95 per pack of 5
SPAX Multi-Material No. 10 Label X 3 in. L T-20+ Flat Head Serrated Construction Screws

SPAX Multi-Material No. 10 Label X 3 in. L T-20+ Flat Head Serrated Construction Screws

Regular price $15.87 USD

Regular price Sale price $15.87 USD
Unit price per
MSRP $19.09
SPAX PowerLags 5/16 in. X 6 in. L T-40 Washer Head Serrated Structural Screws

SPAX PowerLags 5/16 in. X 6 in. L T-40 Washer Head Serrated Structural Screws

Regular price $58.53 USD

Regular price Sale price $58.53 USD
Unit price per
SPAX Multi-Material No. 14 Label X 2 in. L T30+ Flat Head Serrated Construction Screws

SPAX Multi-Material No. 14 Label X 2 in. L T30+ Flat Head Serrated Construction Screws

Regular price $16.39 USD

Regular price Sale price $16.39 USD
Unit price per
MSRP $19.09
SPAX PowerLags 5/16 in. X 3 in. L Washer Yellow Zinc Carbon Steel Lag Screw 12 pk

SPAX PowerLags 5/16 in. X 3 in. L Washer Yellow Zinc Carbon Steel Lag Screw 12 pk

Regular price $10.12 USD

Regular price Sale price $10.12 USD
Unit price per
MSRP $14.89
Grip-Rite No. 8 wire X 1-3/4 in. L Star Flat Head Coarse Construction Screws — 1432 pk

Grip-Rite No. 8 wire X 1-3/4 in. L Star Flat Head Coarse Construction Screws — 1432 pk

Regular price $49.67 USD

Regular price Sale price $49.67 USD
Unit price per
Grip-Rite No. 9 wire X 3 in. L Star Flat Head Coarse Construction Screws — Model 3GCS10BK

Grip-Rite No. 9 wire X 3 in. L Star Flat Head Coarse Construction Screws — Model 3GCS10BK

Regular price $50.15 USD

Regular price Sale price $50.15 USD
Unit price per
SPAX PowerLags 5/16 in. X 4-1/2 in. L T-40 Washer Head Serrated Structural Screws

SPAX PowerLags 5/16 in. X 4-1/2 in. L T-40 Washer Head Serrated Structural Screws

Regular price $43.08 USD

Regular price Sale price $43.08 USD
Unit price per
MSRP $50.09
SPAX PowerLags 1/4 in. X 1-1/2 in. L Washer High Corrosion Resistant Carbon Steel Lag Screw 12 pk

SPAX PowerLags 1/4 in. X 1-1/2 in. L Washer High Corrosion Resistant Carbon Steel Lag Screw 12 pk

Regular price $9.81 USD

Regular price Sale price $9.81 USD
Unit price per
MSRP $13.99
Grip-Rite No. 8 wire X 1-3/4 in. L Star Flat Head Coarse Construction Screws — 719 pk

Grip-Rite No. 8 wire X 1-3/4 in. L Star Flat Head Coarse Construction Screws — 719 pk

Regular price $26.93 USD

Regular price Sale price $26.93 USD
Unit price per
MSRP $29.99
$26.93 per pack · $161.58 per case of 6
SPAX Multi-Material No. 8 in. X 1-1/2 in. L T-20+ Wafer Head Serrated Construction Screws

SPAX Multi-Material No. 8 in. X 1-1/2 in. L T-20+ Wafer Head Serrated Construction Screws

Regular price $17.04 USD

Regular price Sale price $17.04 USD
Unit price per
MSRP $19.09
SPAX PowerLags 5/16 in. X 3-1/2 in. L T-40 Washer Head Serrated Structural Screws

SPAX PowerLags 5/16 in. X 3-1/2 in. L T-40 Washer Head Serrated Structural Screws

Regular price $28.44 USD

Regular price Sale price $28.44 USD
Unit price per
MSRP $45.49
SPAX PowerLags 5/16 in. X 8 in. L T-40 Washer Head Serrated Structural Screws

SPAX PowerLags 5/16 in. X 8 in. L T-40 Washer Head Serrated Structural Screws

Regular price $91.21 USD

Regular price Sale price $91.21 USD
Unit price per
MSRP $104.99
SPAX Multi-Material No. 9 Label X 2-1/2 in. L T-20+ Flat Head Serrated Construction Screws

SPAX Multi-Material No. 9 Label X 2-1/2 in. L T-20+ Flat Head Serrated Construction Screws

Regular price $15.87 USD

Regular price Sale price $15.87 USD
Unit price per
MSRP $19.09
SPAX PowerLags 5/16 in. X 5 in. L T-40 Washer Head Serrated Structural Screws

SPAX PowerLags 5/16 in. X 5 in. L T-40 Washer Head Serrated Structural Screws

Regular price $54.73 USD

Regular price Sale price $54.73 USD
Unit price per
Grip-Rite No. 8 wire X 1-5/8 in. L Star Flat Head Coarse Construction Screws — 740 pk

Grip-Rite No. 8 wire X 1-5/8 in. L Star Flat Head Coarse Construction Screws — 740 pk

Regular price $27.05 USD

Regular price Sale price $27.05 USD
Unit price per
MSRP $29.99
SPAX PowerLags 5/16 in. X 3 in. L T-40 Washer Head Serrated Structural Screws

SPAX PowerLags 5/16 in. X 3 in. L T-40 Washer Head Serrated Structural Screws

Regular price $29.37 USD

Regular price Sale price $29.37 USD
Unit price per
MSRP $43.19
SPAX Multi-Material No. 10 in. X 3 in. L T-20+ Wafer Head Serrated Construction Screws

SPAX Multi-Material No. 10 in. X 3 in. L T-20+ Wafer Head Serrated Construction Screws

Regular price $17.04 USD

Regular price Sale price $17.04 USD
Unit price per
MSRP $19.09
SPAX Multi-Material No. 8 in. X 1-1/4 in. L T-20+ Wafer Head Serrated Construction Screws

SPAX Multi-Material No. 8 in. X 1-1/4 in. L T-20+ Wafer Head Serrated Construction Screws

Regular price $17.04 USD

Regular price Sale price $17.04 USD
Unit price per
MSRP $19.09
SPAX PowerLags 5/16 in. X 8 in. L T-40 Washer Head Serrated Structural Screws

SPAX PowerLags 5/16 in. X 8 in. L T-40 Washer Head Serrated Structural Screws

Regular price $35.33 USD

Regular price Sale price $35.33 USD
Unit price per

$35.33 each · $176.65 per pack of 5
Grip-Rite No. 8 wire X 2 in. L Star Flat Head Coarse Construction Screws — 641 pk

Grip-Rite No. 8 wire X 2 in. L Star Flat Head Coarse Construction Screws — 641 pk

Regular price $26.40 USD

Regular price Sale price $26.40 USD
Unit price per
MSRP $29.99
FastenMaster VersaLOK 8 in. L Torx Ttap Galvanized Coarse Structural Wood Screws 50 pk

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FastenMaster VersaLOK 8 in. L Torx Ttap Galvanized Coarse Structural Wood Screws 50 pk

Regular price $99.43 USD

Regular price Sale price $99.43 USD
Unit price per
MSRP $119.99

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Grip-Rite No. 9 wire X 2-1/2 in. L Star Flat Head Coarse Construction Screws — 848 pk

Grip-Rite No. 9 wire X 2-1/2 in. L Star Flat Head Coarse Construction Screws — 848 pk

Regular price $50.11 USD

Regular price Sale price $50.11 USD
Unit price per
Grip-Rite No. 10 wire X 3-1/2 in. L Star Flat Head Coarse Construction Screws — 475 pk

Grip-Rite No. 10 wire X 3-1/2 in. L Star Flat Head Coarse Construction Screws — 475 pk

Regular price $49.37 USD

Regular price Sale price $49.37 USD
Unit price per
Grip-Rite No. 8 wire X 1-1/4 in. L Star Flat Head Coarse Construction Screws — 1842 pk

Grip-Rite No. 8 wire X 1-1/4 in. L Star Flat Head Coarse Construction Screws — 1842 pk

Regular price $49.47 USD

Regular price Sale price $49.47 USD
Unit price per