Carriage Bolts

Carriage Bolts with a round mushroom like head and square neck , so it’s call round head square neck bolts, The square neck can prevent the bolts rotate. it widely used in wood application.

Carriage bolts Material: Low carbon steel for grade 4.8, Medium carbon steel for grade 8.8; Stainless steel ( SUS200, SUS201, SUS304 or SUS316 )
Surface treatment: Zinc plated ( color: yellow, blue and white ), Chrome plated; stainless steel type only wash and passivated .
Size: Thread Size: M6-M16 , Length: 20-200mm;

Carriage Bolts standard:

• DIN 603
• ASME/ANSI B 18.5-1978