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Our knurled head thumb screws are precision-engineered for applications requiring frequent manual tightening and loosening without tools. Designed with ergonomic non-slip grips, these hand screws provide reliable locking force and comfortable operation, significantly improving efficiency for equipment adjustment, panel mounting, maintenance, and assembly line tasks.
We specialize in non-standard thumb screw manufacturing. Custom options include head diameter, height dimensions, knurling pattern (diamond, straight, cross), thread length and pitch, special drive types (hex socket, Torx, slot), color finishing (black, blue, gold zinc plating), and laser marking with your logo or specifications.
All thumb screws undergo 100% thread gauge inspection and dimensional verification. Our ISO9001:2015 and IATF16949 certified facility utilizes automated optical sorting for batch consistency. Material certificates and test reports available upon request.
Standard packaging in poly bag plus export carton with label. Custom packaging options include small plastic boxes, blister packs, or branded pouches. Lead time: 15-25 days for mass production, 5-7 days for sample orders. Shipping via DHL, FedEx, air freight, or sea freight.
Submit your drawings, samples, or dimensional requirements. Our engineering team responds within 24 hours with technical review and competitive quotation.
We offer stainless steel (304 and 316 for corrosion resistance), carbon steel grade 12.9 (high strength with zinc or black oxide plating), and brass C3602 (non-magnetic and decorative).
No, they are specifically designed for tool-free manual tightening and loosening. However, custom drive options such as hex socket, Torx, or slot can be added to the head upon request.
Yes, we specialize in non-standard manufacturing. Custom head diameters, heights, knurling patterns (diamond, straight, cross), and custom thread lengths can all be tailored to your drawings.
We support both metric standards from M2 to M20 and standard inch sizes (UNC/UNF) in fine or coarse pitch configurations.
Our facility is ISO9001:2015 and IATF16949 certified. Products undergo 100% thread gauge inspection, dimensional verification, and automated optical sorting, with material test reports provided upon request.
Sample orders typically ship in 5 to 7 days, while mass production orders generally require 15 to 25 days depending on specifications and order volume.
