Grade 4.8 Cup Square Hex Bolts and Nuts DIN 603/555 BZP CE - M6 x 20

A type of bolt used predominantly in woodworking. Ideal for fastening metal to timber, or joining heavy timbers. The square under the head bites and locks into the timber, preventing the bolt from spinning, which is ideal where there is limited access to both ends when tightening. The round head is also tamper-proof.

• Conforms to DIN 603/555.
• Comes complete with nut.
• Grade 4.8 Steel (mild Steel).
• CE approved.
• Bright Zinc Plate (BZP) finish offers resistance to corrosion.