As a premier custom bolt manufacturer of fasteners in China, Yuhuang specializes in high-performance custom fasteners, including precision metric sems screws, recessed pan head screw designs, and custom bolts.
Understanding sems Fasteners
sems (Screw and Washer Assemblies) represent an innovative fastening solution combining a bolt with permanently attached washers. Also known as captivated washers or combi bolts.
At Yuhuang, we manufacture sems fasteners by installing washers on bolt blanks before thread rolling. This process ensures:
- The expanded thread diameter securely retains washers
- Controlled washer movement along the bolt's non-threaded section
- Reliable performance as a unified assembly
The Yuhuang Combi Bolt Advantage
Our advanced custom made screws with integrated washers deliver:
① Enhanced Assembly Efficiency
- Pre-assembled, pre-lubricated components accelerate production
- Eliminates risks of missing or improperly installed washers
② Superior Engineering Performance
- Maintains integrity in vibration-intensive applications
- Ideal for confined spaces and hard-to-reach areas
③ Operational Optimization
- Reduces inventory complexity with combined components
- Simplifies maintenance with captive washer design
④ Specialized Applications
- Available in metric sems screws configurations
- Customizable as custom stainless steel bolts
- Compatible with recessed pan head screw designs
As your trusted custom fastener manufacturer, Yuhuang combines precision engineering with practical innovation to deliver fastener solutions that enhance productivity and reliability across industries.
Dongguan Yuhuang Electronic Technology Co., Ltd
Email:yhfasteners@dgmingxing.cn
WhatsApp/WeChat/Phone: +8613528527985
Post time: Apr-15-2025
