Russia Hex Wood Screw with Spring Washer

Head Type: Hex Head
Material: Carbon Steel
Finish: Electro Galvanized, Hot Dipped Galvanized,Stainless Steel
Length: From 30mm-400mm
Head Dia: M8 (12.8mm), M10 (15.8mm), M12 (18mm), M16 (23.8mm)
Head Height: M8 (5.5mm), M10 (6.5mm), M12 (7.5 mm), M16 (10mm)
Drill Capacity: Pre-Drilled Timber
Driver Type: Hex Socket – M8 (13mm), M10 (17mm), M12 (19mm), M16 (24mm)

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Wood screw Introduction

Hex wood screw, better known as lag screw, are typically large in diameter and long enough to deeply penetrate wood, so as to create firm connections with little chance of the screw loosening after it’s been tightened.These wood screw boast coarse threading, but that threading does not encompass the length of the screw. Normal wood screws thread as they enter the wood, where lag screws require a hole to be drilled first. Wood screw also use a nut to add extra strength and security to help hold things together.


To install wood screw, the first step is to make sure that all of the materials involved in the application are aligned. To keep the materials in place once they are aligned, use clamps to hold. Once everything is secure, drill a pilot hole using a bit with a slightly smaller diameter than the lag screw that will be used. When drilling the hole, make sure to drill all the way through the area where the screw will eventually be.

General Applications

Hex Wood screw – common places where this type of screw can be found in house building.

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