M16 x 300mm Carriage bolt (Coach Bolt), A2 (304) Stainless Steel, DIN 603 P180 hardened and tempered for added

hardened and tempered for added strength with a phosphate finish for greater corrosion resistance and a 1” square drive

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M16 x 300mm Carriage bolt (Coach Bolt), A2 (304) Stainless Steel, DIN 603 P180 hardened and tempered for addedM16 Carriage Bolt Carriage bolt with a smooth head, no drive recess for security, and a square neck beneath the head that prevents rotation when tightened from the back. The square neck under the rounded head locks into wood or metal. This prevents rotation during installation which allows easy one sided fastening. The smooth round head allows for a clean finish and with no drive recess restricts the bolt from being removed or tampered with without