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.

FastenMaster FlatLok No. 14 X 4-1/2 in. L Torx Ttap Epoxy Coarse Wood Screws 50 pk

FastenMaster FlatLok No. 14 X 4-1/2 in. L Torx Ttap Epoxy Coarse Wood Screws 50 pk

Regular price $48.72 USD

Regular price Sale price $48.72 USD
Unit price per
MSRP $59.49
FastenMaster Headlok 8 in. L Torx Ttap T30 Coarse Structural Wood Screws 50 pk

FastenMaster Headlok 8 in. L Torx Ttap T30 Coarse Structural Wood Screws 50 pk

Regular price $60.49 USD

Regular price Sale price $60.49 USD
Unit price per
MSRP $68.49
FastenMaster Headlok 8 in. L Torx Ttap T30 Coarse Structural Wood Screws 12 pk

FastenMaster Headlok 8 in. L Torx Ttap T30 Coarse Structural Wood Screws 12 pk

Regular price $23.24 USD

Regular price Sale price $23.24 USD
Unit price per
MSRP $26.99
FastenMaster LogHog No. 14 X 10 in. L Hex Epoxy Coarse Wood Screws 250 pk

FastenMaster LogHog No. 14 X 10 in. L Hex Epoxy Coarse Wood Screws 250 pk

Regular price $296.72 USD

Regular price Sale price $296.72 USD
Unit price per
MSRP $355.49
FastenMaster Headlok 2-7/8 in. L Torx Ttap T30 Coarse Structural Wood Screws 50 pk

FastenMaster Headlok 2-7/8 in. L Torx Ttap T30 Coarse Structural Wood Screws 50 pk

Regular price $23.53 USD

Regular price Sale price $23.53 USD
Unit price per
MSRP $32.99
Grip-Rite No. 10 wire X 3-1/2 in. L Star Flat Head Coarse Construction Screws — 239 pk

Grip-Rite No. 10 wire X 3-1/2 in. L Star Flat Head Coarse Construction Screws — 239 pk

Regular price $27.47 USD

Regular price Sale price $27.47 USD
Unit price per
MSRP $29.99
FastenMaster Headlok 4-1/2 in. L Torx Ttap T30 Coarse Structural Wood Screws Box of 250

FastenMaster Headlok 4-1/2 in. L Torx Ttap T30 Coarse Structural Wood Screws Box of 250

Regular price $148.16 USD

Regular price Sale price $148.16 USD
Unit price per
MSRP $176.49
GRK Fasteners No. 10 in. X 3-1/8 in. L Star Hex Head W-Cut Structural Screws

GRK Fasteners No. 10 in. X 3-1/8 in. L Star Hex Head W-Cut Structural Screws

Regular price $86.65 USD

Regular price Sale price $86.65 USD
Unit price per
MSRP $104.47
FastenMaster FlatLok No. 14 X 3-1/2 in. L Torx Ttap Epoxy Coarse Wood Screws 250 pk

FastenMaster FlatLok No. 14 X 3-1/2 in. L Torx Ttap Epoxy Coarse Wood Screws 250 pk

Regular price $144.17 USD

Regular price Sale price $144.17 USD
Unit price per
MSRP $174.49
GRK Fasteners 5/16 in. X 5-1/8 in. L Star Hex Head W-Cut Structural Screws 20 pk

GRK Fasteners 5/16 in. X 5-1/8 in. L Star Hex Head W-Cut Structural Screws 20 pk

Regular price $31.29 USD

Regular price Sale price $31.29 USD
Unit price per
MSRP $37.69
GRK Fasteners 5/16 in. X 3-1/2 in. L Star Hex Head W-Cut Structural Screws

GRK Fasteners 5/16 in. X 3-1/2 in. L Star Hex Head W-Cut Structural Screws

Regular price $82.64 USD

Regular price Sale price $82.64 USD
Unit price per
MSRP $99.63
GRK Fasteners 5/16 in. X 4 in. L Star Hex Head W-Cut Structural Screws — Diameter .3125, 400 pk

GRK Fasteners 5/16 in. X 4 in. L Star Hex Head W-Cut Structural Screws — Diameter .3125, 400 pk

Regular price $241.96 USD

Regular price Sale price $241.96 USD
Unit price per
MSRP $291.57
GRK Fasteners 5/16 in. X 3-1/8 in. L Star Hex Head W-Cut Structural Screws 500 pk

GRK Fasteners 5/16 in. X 3-1/8 in. L Star Hex Head W-Cut Structural Screws 500 pk

Regular price $328.48 USD

Regular price Sale price $328.48 USD
Unit price per
MSRP $395.84
GRK Fasteners 3/8 in X 8 in. L Star Hex Head W-Cut Structural Screws

GRK Fasteners 3/8 in X 8 in. L Star Hex Head W-Cut Structural Screws

Regular price $176.25 USD

Regular price Sale price $176.25 USD
Unit price per
MSRP $212.45
GRK Fasteners 5/16 in. X 2-3/4 in. L Star Hex Head W-Cut Structural Screws

GRK Fasteners 5/16 in. X 2-3/4 in. L Star Hex Head W-Cut Structural Screws

Regular price $60.77 USD

Regular price Sale price $60.77 USD
Unit price per
GRK Fasteners 5/16 in. X 2-1/2 in. L Star Hex Head W-Cut Structural Screws

GRK Fasteners 5/16 in. X 2-1/2 in. L Star Hex Head W-Cut Structural Screws

Regular price $59.57 USD

Regular price Sale price $59.57 USD
Unit price per
MSRP $71.74
GRK Fasteners 3/8 in. X 10 in. L Star Hex Head W-Cut Structural Screws 50 pk

GRK Fasteners 3/8 in. X 10 in. L Star Hex Head W-Cut Structural Screws 50 pk

Regular price $300.32 USD

Regular price Sale price $300.32 USD
Unit price per
MSRP $361.85
FastenMaster Headlok 2-7/8 in. L Torx Ttap T30 Coarse Structural Wood Screws 12 pk

FastenMaster Headlok 2-7/8 in. L Torx Ttap T30 Coarse Structural Wood Screws 12 pk

Regular price $15.44 USD

Regular price Sale price $15.44 USD
Unit price per
MSRP $21.99
FastenMaster FlatLok No. 14 each X 3-1/2 in. L Torx Ttap Epoxy Coarse Wood Screws 1 pk

FastenMaster FlatLok No. 14 each X 3-1/2 in. L Torx Ttap Epoxy Coarse Wood Screws 1 pk

Regular price $42.40 USD

Regular price Sale price $42.40 USD
Unit price per
MSRP $52.49
FastenMaster FlatLok No. 14 X 5 in. L Torx Ttap Epoxy Coarse Wood Screws 250 pk

FastenMaster FlatLok No. 14 X 5 in. L Torx Ttap Epoxy Coarse Wood Screws 250 pk

Regular price $173.99 USD

Regular price Sale price $173.99 USD
Unit price per
MSRP $210.49
FastenMaster FlatLok No. 14 X 2-7/8 in. L Torx Ttap Epoxy Coarse Wood Screws 50 pk

FastenMaster FlatLok No. 14 X 2-7/8 in. L Torx Ttap Epoxy Coarse Wood Screws 50 pk

Regular price $31.85 USD

Regular price Sale price $31.85 USD
Unit price per
MSRP $39.49
FastenMaster FlatLok No. 14 each X 5 in. L Torx Ttap Epoxy Coarse Wood Screws 50 pk

FastenMaster FlatLok No. 14 each X 5 in. L Torx Ttap Epoxy Coarse Wood Screws 50 pk

Regular price $51.12 USD

Regular price Sale price $51.12 USD
Unit price per
MSRP $62.99
FastenMaster Headlok Torx Ttap None Carded Bit Pack 2 pk

FastenMaster Headlok Torx Ttap None Carded Bit Pack 2 pk

Regular price $6.79 USD

Regular price Sale price $6.79 USD
Unit price per
MSRP $12.49
FastenMaster LogHog No. 14 X 7 in. L Hex Epoxy Coarse Wood Screws 250 pk

FastenMaster LogHog No. 14 X 7 in. L Hex Epoxy Coarse Wood Screws 250 pk

Regular price $244.41 USD

Regular price Sale price $244.41 USD
Unit price per
MSRP $292.99
FastenMaster TimberLok No. 10 X 10 in. L Hex Epoxy Coarse Wood Screws 250 pk

FastenMaster TimberLok No. 10 X 10 in. L Hex Epoxy Coarse Wood Screws 250 pk

Regular price $221.31 USD

Regular price Sale price $221.31 USD
Unit price per
MSRP $300.49
GRK Fasteners No. 8 in. X 2-1/2 in. L Star Trim Head W-Cut Construction Screws

GRK Fasteners No. 8 in. X 2-1/2 in. L Star Trim Head W-Cut Construction Screws

Regular price $114.83 USD

Regular price Sale price $114.83 USD
Unit price per
MSRP $142.92
FastenMaster TimberLOK No. 10 X 2.5 in. L Hex Epoxy Coarse Wood Screws 12 pk

FastenMaster TimberLOK No. 10 X 2.5 in. L Hex Epoxy Coarse Wood Screws 12 pk

Regular price $15.60 USD

Regular price Sale price $15.60 USD
Unit price per
MSRP $22.99
FastenMaster VersaLOK 6 in. L Torx Ttap Galvanized Coarse Structural Wood Screws 50 pk

FastenMaster VersaLOK 6 in. L Torx Ttap Galvanized Coarse Structural Wood Screws 50 pk

Regular price $72.65 USD

Regular price Sale price $72.65 USD
Unit price per
MSRP $88.99
FastenMaster LedgerLok No. 12 each X 3-5/8 in. L Torx Ttap Epoxy Coarse Wood Screws 1 pk

FastenMaster LedgerLok No. 12 each X 3-5/8 in. L Torx Ttap Epoxy Coarse Wood Screws 1 pk

Regular price $50.93 USD

Regular price Sale price $50.93 USD
Unit price per
MSRP $56.49
$50.93 per pack · $305.58 per case of 6
FastenMaster FlatLok No. 14 each X 6-3/4 in. L Torx Ttap Epoxy Coarse Wood Screws 50 pk

FastenMaster FlatLok No. 14 each X 6-3/4 in. L Torx Ttap Epoxy Coarse Wood Screws 50 pk

Regular price $59.83 USD

Regular price Sale price $59.83 USD
Unit price per
MSRP $72.49
FastenMaster LogHog 15 in. L Hex Black Wood Screws 150 pk

FastenMaster LogHog 15 in. L Hex Black Wood Screws 150 pk

Regular price $265.33 USD

Regular price Sale price $265.33 USD
Unit price per
MSRP $317.99
FastenMaster LogHog No. 14 X 12 in. L Hex Epoxy Coarse Wood Screws 250 pk

FastenMaster LogHog No. 14 X 12 in. L Hex Epoxy Coarse Wood Screws 250 pk

Regular price $346.01 USD

Regular price Sale price $346.01 USD
Unit price per
MSRP $415.99
FastenMaster LedgerLok No. 12 each X 5 in. L Torx Ttap Flat Head Coarse Structural Screws

FastenMaster LedgerLok No. 12 each X 5 in. L Torx Ttap Flat Head Coarse Structural Screws

Regular price $57.07 USD

Regular price Sale price $57.07 USD
Unit price per
MSRP $68.99
FastenMaster ThruLok No. 8 each X 8 in. L Hex Drive Hex Head Coarse Screw Kit

FastenMaster ThruLok No. 8 each X 8 in. L Hex Drive Hex Head Coarse Screw Kit

Regular price $90.59 USD

Regular price Sale price $90.59 USD
Unit price per
MSRP $107.49
FastenMaster VersaLOK 10 in. L Torx Ttap Galvanized Coarse Structural Wood Screws 1 pk

FastenMaster VersaLOK 10 in. L Torx Ttap Galvanized Coarse Structural Wood Screws 1 pk

Regular price $3.45 USD

Regular price Sale price $3.45 USD
Unit price per
MSRP $4.20
FastenMaster Headlok 10 in. L Torx Ttap T30 Coarse Structural Wood Screws Box of 50

FastenMaster Headlok 10 in. L Torx Ttap T30 Coarse Structural Wood Screws Box of 50

Regular price $68.24 USD

Regular price Sale price $68.24 USD
Unit price per
MSRP $82.49