Samac V6130CSH100 M6x130mm BZP Cup Square Hex (100) V6130CSH100 Professional-grade cup square hex bolt, also known as a carriage bolt or coach bolt. Heavy-duty fastener designed for timber-to-timber and timber-to-metal construction. Anti-spin square shoulder locks into the material to prevent rotation during tightening. Smooth, domed mushroom head provides a clean, snag-free finish. Rounded head offers improved security and cannot be easily gripped from the outside. Bright Zinc Plated (BZP) finish helps protect against rust and oxidation in internal or dry environments. Installed in pre-drilled holes with the square neck hammered into place for a secure fit. Size: M6 x 130mm. Pack quantity: 100. Samac V6130CSH100 Cup Square Hex bolts provide a reliable, professional fastening solution for demanding timber and light construction applications. The anti-spin square neck ensures efficient installation and a firm hold, while the domed head delivers a neat, tamper-resistant finish. With Bright Zinc Plating for added corrosion protection, this fastener is well suited to internal and dry-use environments where strength, security, and appearance are important.