DIN 261 T-Slot Bolt
FLOK supplies DIN 261 T-slot head bolts M6–M48, property class 4.6, zinc-plated, stainless steel A2/A4 for machine T-slots.
Under the European standard DIN 261, a steel bolt with a T-shaped head is manufactured, designed for T-slot installation. The product has a partial metric thread with a diameter from M6 to M48. The property class is selected depending on operating conditions and loads. This type of fastener ensures reliable fixation of parts without loosening or self-unscrewing. Similar products are manufactured to DIN 186 and GOST 13152-67.
Manufacturing features
T-slot bolts differ from standard fasteners by the T-shaped head. The rectangular head is designed for installation in a machined T-slot, while a partial metric thread is provided for fastening in the hole. The shank length ranges from 25 to 200 mm. Materials:
- Steel without protective coating, property class 4.6 — for moderate loads.
- Steel with protective zinc coating: electroplating or thermal diffusion galvanizing protects against corrosion in high-humidity conditions.
- Stainless and acid-resistant steel A2 and A4 — corrosion-resistant, provides high reliability.
The T-slot bolt is installed in a pre-drilled, tapped hole and ensures secure fixation. When selecting an equivalent, the product grade and design features are important.
Application options
The main purpose is fastening in machine T-slots; the product is widely used in machine-tool building. Operating conditions and the required corrosion resistance are taken into account when choosing. The bolt is also used in mechanical engineering, instrument making, shipbuilding and other industrial sectors for reliable fixation of metal parts.
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