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4 inch length Lag Screws (ASME B18. 2.1)

Lag Screws, are sometimes incorrectly called Lag Bolts. They usually have a square or hexagonal head and a wood screw-style thread with a point. Because of their larger diameter, they usually require a pre-drilled hole. They are usually much larger diameter than wood screws, and are used to connect wood or like materials that need to bear a heavy load. In the U.K., Lag Screws are known as Coach Screws.

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Buy Lag Screws from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
Wink FastVALag Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x 418.8 (a2) 18-8 304 steel hex lag screw 1/4x4 dimensionally per asme b18.2.1653
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QFSMILag Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16 x 4hex head l/b (18-8) b18.2.1stock
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QFSMILag Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8 x 4hex head l/b (18-8) b18.2.1stock
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QFSMILag Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2 x 4hex head l/b (18-8) b18.2.1stock
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QFSMILag Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x 4hex head l/b (18-8) b18.2.1stock
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