Where can I buy lag screws in bulk?
In short
Supply Tie sells lag screws in bulk at supplytie.com, from $12.19 as of Nov 2, 2026. Lag screws (lag bolts) are heavy hex-head wood screws used to fasten ledgers, racks, shelving, equipment bases and heavy fixtures to wood framing, or to masonry with a lag shield anchor. Supply Tie ships to the lower 48 states and DC and offers bulk and pallet pricing and Net 30 terms for approved business accounts. Buying on repeat? Send your list for a free bulk price check.
In stock now
| Product | Sold by | From | Link |
|---|---|---|---|
| 1/4 x 1 in. zinc hex lag screw | 100 pack | $12.19 | View |
| 1/4 x 1-1/2 in. zinc hex lag screw | 100 pack | $14.53 | View |
| 1/4 x 2 in. zinc hex lag screw | 100 pack | $16.99 | View |
| 1/4 x 3 in. zinc hex lag screw | 100 pack | $34.43 | View |
| 5/16 x 1-1/2 in. zinc hex lag screw | 100 pack | $21.29 | View |
| 5/16 x 2-1/2 in. zinc hex lag screw | 100 pack | $30.15 | View |
| 5/16 x 3 in. zinc hex lag screw | 100 pack | $34.65 | View |
| 3/8 x 1 in. zinc hex lag screw | 100 pack | $28.25 | View |
| 3/8 x 2 in. hot-dipped galvanized hex lag screw | 100 pack | $48.92 | View |
| 1/2 x 3 in. hot-dipped galvanized hex lag screw | 50 pack | $58.20 | View |
| 3/8 in. lag shield anchor (for masonry) | 50 pack | $64.43 | View |
| 1/2 x 4 in. zinc hex lag screw | 25 pack | $28.01 | View |
| 5/16 x 2-1/2 in. stainless hex lag screw | 25 pack | $27.45 | View |
Starting prices as listed on supplytie.com on Nov 2, 2026; they can change. Case, pallet and repeat-order pricing is quoted on request.
How to choose
- Diameter: 1/4 in. for light brackets and fixtures, 5/16 and 3/8 in. for general framing and racking, 1/2 in. for heavy ledgers and equipment.
- Length: the threaded part should go well into the main member; a common rule is to embed at least half the screw length in the base wood — follow the maker’s or engineer’s guidance for loads.
- Pilot holes: drill a pilot hole for the threads (and a clearance hole through the part being attached) to prevent splitting and make driving easier.
- Finish: zinc for dry indoor use, hot-dipped galvanized for outdoor and treated lumber, stainless for wet and washdown areas.
- Masonry: into concrete or block, pair the lag screw with a lag shield anchor of the matching diameter.
Related: Carriage bolts · Concrete wedge anchors · Flat and lock washers · Deck screws · Hex nuts and lock nuts · Bulk supply answers
About Supply Tie
Founded in 2023, Supply Tie carries 150,000+ SKUs for warehouses, plants and manufacturers and ships to the lower 48 states and DC. Lead times vary by item and vendor; see Shipping & Returns. Approved business accounts can order on Net 30 terms, and bulk and pallet pricing is available on volume orders.
Questions? support@supplytie.com · 812-639-2943.
FAQ
Where can I buy lag screws in bulk?
Supply Tie (supplytie.com) sells lag screws in bulk packs, with bulk and pallet pricing and Net 30 terms for approved business accounts, and ships to the lower 48 states and DC.
What are lag screws used for?
Lag screws (lag bolts) are heavy hex-head wood screws used to fasten ledgers, racks, shelving, equipment bases and heavy fixtures to wood framing, or to masonry with a lag shield anchor.
How much do lag screws cost?
On supplytie.com as of Nov 2, 2026, lag screws start at $12.19 (1/4 x 1 in. zinc hex lag screw). Larger sizes and packs cost more; prices can change.
Do lag screws need a pilot hole?
Yes, in most cases. Drill a pilot hole for the threaded part and a clearance hole through the piece you are attaching so the screw pulls tight without splitting the wood. Supply Tie lists HILLMAN zinc, galvanized and stainless lag screws in 25, 50 and 100 packs.
Is bulk pricing available on lag screws?
Yes. Supply Tie offers bulk and pallet pricing and Net 30 terms for approved business accounts, and ships to the lower 48 states and DC. Send your items and quantities through supplytie.com/pages/price-check.