The diameter of the thread is divided into large diameter (D or d), small diameter (D1 or d1) and middle diameter. The large diameter of ordinary thread and ladder thread is also called the nominal diameter. The top diam...
On the section passing through the thread axis, the outline shape of the thread is called a thread profile. It has triangle type, ladder type, sawtooth type and square type, etc. Different thread tooth types have differe...
A fastener refers to a part capable of performing a fastening function. Threaded fasteners refer to fasteners with threads, which are manufactured according to a certain size. It performs its basic function through the m...
Specifications of American screws, such as 6 # -32 * 3/8, 6 # is the outer diameter of the tooth, which is close to 3.5mm; 32 is 32 teeth per inch of thread length (equivalent to the pitch of the metric screw); 3 / 8 is ...
Many people have unclear fastener descriptions. For example, some people want to buy some fasteners, but when they say what to buy, they don’t know how to describe the fasteners they want to buy. We are doing it. When de...
First, the mechanical performance level China has provisions for bolts, screws and studs of different mechanical performance grades. Self-tapping screws and self-tapping screws Ordinary self-tapping screws are not classi...
