4-Point Square Sockets for Square Head Lag Bolts – The Best Tool for the Job
Working with authentic square head lag bolts? Stop fighting slipping sockets and rounded heads. Our 4-point square sockets (also called true square drive sockets) are engineered to perfectly match the four flat sides of square head lag screws. Unlike 8-point or 12-point alternatives, a true 4-point socket delivers full flat-to-flat contact for maximum torque and zero slippage — even with high-powered impact drivers. Perfect for timber framing, barn restoration, rustic builds, and matching vintage hardware.H2: Why Choose True 4-Point Sockets Over 8-Point or Regular Sockets?
- Full surface contact — Engages all four flats completely (8-point sockets only hit partial flats/corners).
- Superior torque & grip — Less chance of rounding heads, especially on stubborn or oversized lags.
- Built tough — Ideal for impact use and high-torque applications.
- Authentic feel — Many restorers and traditional craftsmen prefer pure square sockets for the perfect fit.