Halder Tommy Screws / Knurled Nuts
Halder Tommy Screws & Tommy Nuts | T-Bolts & T-Nuts | DIN Standards
Halder tommy screws—often searched as thumb screws or hand screws—plus knurled nuts are hand-operated fasteners designed for tool-free tightening and quick adjustments in fixtures, machine guards, jigs, and industrial assemblies (application dependent). These fasteners are commonly used when changeovers are frequent and you want a secure grip for tightening by hand without reaching for a wrench or driver. Depending on the style, tommy/thumb screws may provide extra leverage for hand tightening, while knurled nuts offer a compact, high-grip option for quick clamp-up (application dependent; verify per listing).
Tommy nuts and tommy screws are operating elements compliant with DIN standards. Often referred to as T-bolts, T-nuts, or machine screws, they are versatile components suitable for a wide range of applications across various industries.
The extensive product range includes various versions from stock:
- Tommy screws DIN 6304 with fixed pin
- Tommy screws DIN 6306 with moveable pin
- Tommy nuts DIN 6305 with fixed pin
- Tommy nuts DIN 6307 with movable pin
