Best Wood Lag Screws in 2026

Premiun Material: Heavy duty screw bolts are made from 18-8 (304) stainless steel and coated with black oxide, which is certified, good look, strength and corrosion resistant.

Mighty Grip: these bolt screws feature deep wood screw coarse threads for superior holding and prevent stripping in the material; Can be applied in even severe environment. Often using with washer which distribute the pressure of the head evenly so that to prevent pull through.

Standard and Various Sizes: the kit includes 5 different most common used sizes: 1/4 x 1", 1/4 x 1-1/2", 1/4 x 2", 1/4 x 2-1/2", 1/4 x 3"; Diameter are all 1/4"; Thread Type are all Coarse (standard); Quantity: 108 pieces screws and washers in total (54 sets)

Standard:ANSI B18.2.1

Thread Size: 5/16 inch; Screw Length: 5 inch

Hex Drive Size: 1/2 inch; Package: 8 Pcs

Designed to attach objects to wood and anchor masonry

Zinc finish provides fair corrosion and rust protection

Coarse threads requiring a pre-drilled hole with minimal clearance above the fastener

Designed for wood to wood connections

Comparable to 3/8" lag screw

5/16" hex head for maximum drivability

Item Weight: 0.0 lb

Country of Origin: China

Brand name: The Hillman Group

Size: 1/4 inch X 1-1/2 inch

Heavy duty wood screw with 6 sided hex bolt head

Features deep wood screw threads and does not accept a nut

MULTI-MATERIAL FUNCTION: The pack of 25 hex lag screws are designed to attach objects to wood and anchoring masonry

CORROSION-RESISTANT FINISH: The screws' zinc plating offers moderate protection against rust and corrosion

COARSE SCREW THREAD: Designed to prevent splitting or snapping in pre-drilled material

Best quality and Durable - This Hex Head Lag Screw made by Zink plated Steel to use both indoor and outdoor, Zinc plated surfaces are rust resistant. They have performance to instantly penetrate in high hardness and good toughness. Zinc plated surface also prevents corrosion and oxidation in both fresh and saltwater appliances.

Dimension - It has 0.3125-inches lag screws and 4-inch long. The lag type screw helps to make strong bonding and prevents stripping in materials. There is only one unit. Find the sizing option to get more quantity. Thank You!

This black zinc plated lag bolt is typically used for joining two pieces' wood or metal plate on wood. No need pre-drilling on wood surfaces. But if you want to join with metal object, you need pre-drilling. If the drilling is more than Bolt, can use washer.