Hex Socket Headless Set Screws Grub Screws Multiple Tip Styles For Precision Shaft Locking Assembly
Set screws, also known as grub screws, are unique headless fasteners widely used to fix rotating components onto shafts. Once tightened fully, set screws sit completely inside threaded holes without protruding heads. The fastening force comes from the contact pressure between screw tip and shaft surface, preventing relative rotation and sliding between mating parts. This flush design saves installation space and avoids collision risks for compact mechanical structures. We supply both metric and imperial sizes, covering tiny precision parts to heavy-duty industrial equipment.
Diverse Tip Options For Different Working Conditions
Each tip type of set screws is engineered for distinct working scenarios. Cup point set screws create indentations on shaft surfaces to form anti-slip locking, ideal for equipment under continuous vibration. Flat point set screws deliver uniform pressure distribution and will not scratch soft shaft surfaces, suitable for assemblies needing frequent disassembly. Cone point set screws offer quick angular positioning for hard metal shafts during equipment adjustment. Dog point set screws are designed to insert into pre-machined holes on shafts to achieve high-precision positioning. Nylon point set screws adopt soft non-marring tips to protect finished shaft surfaces while maintaining reliable holding force.
Material Options And Surface Finishes
We manufacture set screws in SUS304, SUS316 stainless steel, heat-treated carbon steel and brass. Stainless steel grades provide excellent corrosion resistance for humid, coastal salt spray and outdoor environments. High strength carbon steel delivers powerful clamping force for heavy machinery. Brass set screws combine corrosion resistance and good conductivity for electrical and plumbing applications. Available surface treatments include black oxide, zinc plating, nickel plating and passivation to enhance wear resistance and rust protection. Multiple drive types such as hex socket, slotted and torx can be selected according to assembly tools.
Quality Assurance
Raw material inspection is carried out before production to check chemical composition and mechanical hardness. CNC turning and thread rolling processes strictly control thread tolerance. Finished products will go through sampling inspection on dimension, hardness and torque test before packing. All standard set screws meet RoHS requirements for export projects. We accept small batch trial orders and mass production, custom samples can be provided for verification before bulk production.
Main Application Industries
set screws are widely used in many industrial fields. Automation equipment for sensor and limit block positioning. Power tools for locking rotating shafts under high-speed operation. Optical and measuring instruments for fine component adjustment. Valve assemblies, door hardware, medical equipment and new energy devices also adopt these headless fasteners for flush installation.
Company Introduction
We are a professional fastener manufacturer focusing on standard and custom industrial fasteners. Our workshop owns complete production lines including CNC turning, thread rolling and surface treatment. We have rich experience serving global buyers from machinery, automation, new energy, medical and electronic industries. Our engineering team supports drawing evaluation, sample development and mass production delivery.
If you are sourcing qualified set screws for your mechanical assembly projects, send us your drawings, size specs and working condition details. Our technical team will recommend suitable tip style, material and surface finish, and offer competitive factory quotation.
FAQ
Q: What is the main function of set screws?
A: Set screws lock gears, pulleys and sleeves on shafts to prevent rotation and sliding, with no protruding head after installation.
Q: Which tip should I choose for aluminum shafts?
A: Flat point or nylon point set screws are recommended to avoid scratching soft aluminum surfaces.
Q: Can you produce non-standard set screws?
A: Yes, we can customize special thread, length and tip shapes according to your drawings or samples.
Q: Are your set screws RoHS compliant?
A: Standard products can meet RoHS standard for export mechanical and electronic applications.