Thumb Screw
Source thumb screw from India's verified manufacturers and exporters on Himalay. Browse the full range for industrial and export applications.
About Thumb Screw
Thumb screws are fasteners with an enlarged, knurled or winged head designed to be tightened and loosened by hand without a tool, used wherever quick, repeated and tool-free adjustment matters — access panels, guards, jigs and fixtures, electronics enclosures, lab and test equipment. The head form is the defining variant: knurled (flat, high or spade-head) for grip, and wing (butterfly) for higher hand torque. Dimensional standards include DIN 464/465/466 for knurled-head thumb screws and DIN 316 for wing screws, with inch equivalents available; some versions add a screwdriver slot for an initial nip-up or final release. Captive or self-clinching designs keep the screw retained in a panel to prevent loss during servicing. Base material is commonly steel, brass or stainless; steel versions are typically zinc-plated or black-oxide finished, brass offers corrosion resistance and a clean appearance, and stainless A2/A4 suits washdown or outdoor use. Plastic-headed and over-moulded variants are used where electrical insulation, light weight or appearance is wanted. Head style, thread size and whether the part is captive all influence usability. On the configuration side, the controlling variables are head form and knurl pattern for hand grip, thread size and length for the panel and grip range, whether a screwdriver slot or captive feature is needed, and material and finish for the environment. Manufacturers generally verify dimensions, knurl form and corrosion finish on a sampling basis. Where specified, Himalay coordinates material traceability, mechanical and corrosion test data, coating records and RoHS/REACH declarations, coordinated as part of the standard order flow.
