| Length | M3 | M4 | M5 | M6 | M8 | M10 | M12 |
|---|---|---|---|---|---|---|---|
| 25mm | ✔ | ✔ | |||||
| 28mm | ✔ | ||||||
| 30mm | ✔ | ||||||
| 32mm | ✔ | ||||||
| 65mm | ✔ | ||||||
| 70mm | ✔ | ||||||
| 75mm | ✔ | ||||||
| 80mm | ✔ | ||||||
| 100mm | ✔ | ||||||
| 110mm | ✔ |
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Mild steel bright zinc plated roof bolts provide a dependable fastening option for roofing, cladding, timber fixing and general construction work. These bolts feature a domed head with an integrated square or shaped underside to help prevent rotation during tightening. The bright zinc finish offers light corrosion protection and a clean, professional appearance suitable for indoor or sheltered outdoor environments.
Typical uses include fixing timber battens, securing roofing sheets, assembling frames, agricultural structures and general-purpose building tasks. When paired with matching nuts and washers, roof bolts offer reliable clamping strength and straightforward installation. Their simplicity and versatility make them a common choice across a wide range of construction and maintenance applications.