Product Summary
Heavy hex nuts for high-pressure pipe flange connections. Compliant with HG/T20634, UNI5587, and ANSI B18.2.2 standards. Made from 304/316/316L stainless steel for corrosion resistance. Thickened design ensures high load capacity and vibration resistance. Available in metric and imperial sizes with multiple thread options.
Product Details
Highlight:
304/316/316L Stainless Steel Heavy Hex Nut
,Multi-Standard Flange Nut
,Thickened Heavy-Type Chemical Nut
Material:
304, 316, 316L Stainless Steel
Thread Options:
Metric Coarse/fine Thread, UNC Coarse Thread, UN-8 Constant-pitch Thread
Metric Sizes:
M6-M48
Imperial Sizes:
1/4" Up To 3"
Nut Height:
Increased
Thread Precision:
Precision-machined
Product Description
Stainless Steel Heavy Hex Nuts | HG/T20634, UNI5587, ANSI B18.2.2 Nut for Pipe Flange Connection
Heavy-duty thickened hex nuts specifically engineered for pipe flange and chemical equipment assembly. This comprehensive product line includes HG/T20634 chemical nuts, UNI5587 heavy hex nuts, and ANSI B18.2.2 single-chamfer and double-chamfer heavy nuts. These specialized nuts are designed to pair with flange bolts for high-pressure piping systems and pressure vessel applications.
Material & Specifications
Available in corrosion-resistant 304, 316, and 316L stainless steel. Multiple thread options include metric coarse/fine thread, UNC coarse thread, and UN-8 constant-pitch thread. Metric sizes range from M6 to M48, while imperial sizes cover 1/4" up to 3". The increased nut height design provides enhanced loading capacity and uniform stress distribution, ensuring reliable clamping performance under high-pressure and vibration conditions.
Standard Specifications
HG/T20634: Dedicated for domestic chemical pipe flanges (M12-M48)
UNI5587: European specification thick hex nuts (M6-M30 coarse thread)
ANSI B18.2.2: Double-chamfer nuts (1/4"-7/8") and single-chamfer type (1/2"-3") with UNC and UN-8 thread options
UNI5587: European specification thick hex nuts (M6-M30 coarse thread)
ANSI B18.2.2: Double-chamfer nuts (1/4"-7/8") and single-chamfer type (1/2"-3") with UNC and UN-8 thread options
Key Features
- Multi-standard heavy-flange nut series covering Chinese chemical, European, and American standards
- Thickened heavy-type structure optimized for high-pressure, anti-vibration flange connections
- 304/316/316L stainless steel construction for corrosive industrial environments
- Complete metric & imperial sizing with multiple thread forms for diverse flange bolt compatibility
- Precision-machined threads ensure smooth engagement and resist thread stripping
- Sample testing and large-volume bulk supply available
- Complete matching fastener solutions including corresponding flange bolts and washers
Applications: Chemical pipe flanges, pressure vessels, petrochemical facilities, water-treatment plants, oil-gas pipelines, and high-pressure industrial flange assembly.
Ms. Ella Jin
- Email: ellajin1102@163.com
- Tel: 13581790576
- WhatsApp: 8613581790576
-
WeChat:
jin19811102
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