Standard
DIN, ANSI, GB, JIS, BSW, GOST, ISO
Material Type
Carbon/Alloy/Stainless Steel
Material Grade
1008/1021/1022/1035K A2/A4/201/304/316
Surface Treatment
Black/Blue/Clear/Yellow/Gold/HDG Zinc
Thread Standard
UNC/UNF/Metric Coarse/Fine
Application
Solar Panel Roof Mounting System
Other Name
Solar Panel Bolt / Roof Bolt
Production Capacity
2000K PCS/Month
Solar Hanger Bolt Definition
An efficient new roof solution suitable for trapezoidal, zinc, corrugated, and sandwich metal roof profiles. Made of high-quality stainless steel, these bolts withstand heavy wind and snow loads.
Design & Construction
Headless bolts featuring a self-tapping lag thread for wood applications on one side and UNC machine threads on the other to accept standard nuts.
Versatile Application
Primarily used for connecting wood structures to metal fixtures. Ideal for suspending objects from wooden structures or mounting solar panels flush to surfaces with minimal cantilever force.
Material Options
Available in stainless steel, zinc-plated steel, hot-dipped galvanized steel, and brass.
Frequently Asked Questions
What is a Solar Hanger Bolt?
A Solar Hanger Bolt is a dual-threaded fastener used primarily for mounting solar panels on roofs. It features a wood screw thread on one end for securing into rafters and a machine thread on the other end to attach mounting brackets or rails.
What materials are available for these bolts?
Our hanger bolts are typically manufactured from high-quality Stainless Steel (A2/A4, 304/316), Carbon Steel, or Alloy Steel with various surface treatments like Hot-Dip Galvanized (HDG) or Zinc plating for corrosion resistance.
Can these bolts withstand extreme weather?
Yes, these bolts are designed for metal and wood roof installations and are capable of withstanding significant wind and snow loads, especially when using the Grade 8.8 stainless steel options.
What are the common sizes and standards?
They follow standards such as DIN, ANSI, and ISO. Common sizes range from M4 to M12 (metric) or #8 to 1/2" (imperial), with lengths typically between 2" and 15".
Do you support customized orders?
Yes, we provide customization services based on specific technical drawings or samples to meet unique roof profile requirements.
What is the loading capacity of a typical hanger bolt?
A general rule of thumb for screw-in-stud mounting is approximately 300 pounds per bolt for straight pull-out resistance, though this varies based on the wood density and installation depth.
Batul Hardware
