This hand tightening screw is integrally CNC machined from RoHS compliant aluminum alloy with anodized surface and knurled teeth design. It can be tightened and disassembled manually without tools, serving as a practical non-standard fastener.

Used for fixing side panels, expansion modules and internal parts of computer cases. It needs lightweight design and proper friction of knurled surface to prevent slipping during repeated operation. The anodized layer provides good insulation to protect electronic components, and uniform appearance matches the overall style of equipment.

Applied to outdoor gears and portable camping devices. The product requires light weight and reliable structural strength to resist sunlight, moisture and minor impact. The anodized finish is scratch-resistant, fade-proof and anti-corrosive, ensuring easy operation even in humid or low-temperature outdoor environments.

For fastening housings, modules and access panels of household and commercial coffee machines. It must resist water stains and oxidation caused by moisture and coffee residues. The comfortable knurled design enables quick disassembly for daily cleaning and maintenance.

• Slipping and laborious manual operation: Ordinary smooth screws have insufficient friction. Our integrated knurled teeth greatly increase surface friction, making manual tightening easy and efficient.
• Oxidation and surface scratches of aluminum parts: Bare aluminum is prone to discoloration, corrosion and scratches. Standard anodizing forms a dense protective layer to improve wear resistance, anti-corrosion performance and durability.
• Non-compliant materials failing environmental standards: Unqualified aluminum materials contain excessive harmful substances. We adopt RoHS compliant aluminum alloy to meet environmental regulations for domestic and overseas markets.
• Excessive tolerance causing assembly jamming: Poor machining accuracy leads to difficult installation. Adopting CNC precision machining, we control dimensional and thread tolerance strictly for smooth assembly and good compatibility.

SITUO Hardware specializes in CNC precision machining for such fasteners. We offer customized solutions for various positioning and adjusting devices.

A wide range of material options are available, including carbon steel, stainless steel, brass and engineering plastic to satisfy diverse market and working condition demands. With professional CNC machining capability and strict quality control, we support clients to strengthen advantages and expand market business.

Our maximum processing outer diameter is 60, and the minimum control tolerance is 0.001. We have Japanese CNC Tsugami, CNC Citizen, multi-station cold extrusion forming machines, 500T press machines, casting equipment, and various process equipment, which can effectively provide customers with the best technical solutions.

Our company has a total of 300 employees, including 20 technicians, 10 engineers, and 15 quality control personnel. We have over 300 pieces of equipment.

Our company implements 8S management and has passed ISO9001 and TS16949 automotive certifications.

Our customers include bo-sch, Foxconn, Motors, Husqvarna, Shimano, NVIDIA, DJI Drones, Siegenia, and Cater-pillar.