Square Bolts
Square Head machine bolts were the industry standard prior to hex bolts gaining prominence. Square bolts are now most commonly used for aesthetic purposes to provide a rustic look in a new structure or to match existing fasteners in an older structure.
Standard:
ASTM & DIN 479
Material:
Carbon Steel, Mild Steel, Alloy Steel & Stainless Steel
Dia Range:
Metric Size: M12 TO M68
Imperial Size: 1/4” TO 3”