Square lag screws come with a rustic look. They are used often in wood construction and sometimes for aesthetic purposes too. Square leg screws are generally available in the marketplace as a standard stock product.

Manufacturing

Baseline Bolts manufactures top quality square lag screws. With a diameter of 1/2″ – 1-1/2″, these bolts fulfill most specifications of the ASTM, SAE and AASHTO. In fact, we can even create special tooling to help produce nonstandard bolt heads / head dimensions with the client’s preferred logo and/or name.
When there are no specifications given, non-standard lag screws manufactured by BBI generally have a semi-cone point rather than a cone point or a gimlet. It’s crucial to sport a full point as a pilot hole that’s as large as the root diameter of the lag screw needs to be drilled prior to installation. Moreover, in small diameter screws, to facilitate installation without a pilot hole, a gimlet point is designed. Lag screws in the above mentioned diameters generally do not demand a gimlet point because much torque is needed to install large screws if it’s not chosen to drill a pilot hole first. If a pilot hole is absent, the heads of screws often break before installation of the lag screw.