Knowledge

201 and 304 stainless steel bolts are the two most widely used stainless fasteners for fastener procurement and engineering selection. Many purchasers confuse these two products because they look near

The anti-loosening nut was invented in the United States 35 years ago. There is a 30-degree wedge surface at the tip of the traditional 60-degree tooth tip. This structure allows the bolt to obtain gr

Handan Jihao Fastener Manufacturing Co., Ltd., based in Yongnian (China’s top fastener hub), is a 20+ year-old integrated manufacturer of nuts, bolts, washers and custom special-shaped fasteners. We p

Hello, we are a Chinese manufacturer of bolts and nuts. Our main products include hex head bolts, nuts, flat washers and spring washers as matched sets, DIN4 series nuts, B7/B8/L7 stud bolts, U-bolts

If you look closely at any bolt head, you will find marked grades such as 4.8, 8.8, 10.9 and 12.9. These numbers represent the mechanical strength grade of fasteners according to ISO 898 and GB/T 3098

China Jihao Fastener Manufacturing Co., Ltd. has been in the industry for more than 30 years, and has an in-depth understanding and knowledge explanation of bolts.

A flat washer's performance grade acts as its "identity card," utilizing a combination of numbers to reveal its compressive strength and intended applications. Common grade classifications span a spec

The adapter sleeve—a name that might sound a bit unfamiliar—is actually the most commonly used component for positioning bearings on cylindrical shafts. This type of sleeve is suitable not only for sm

Spring washers may be small, but they play a significant role! Did you know? They are the "little secret" to ensuring secure screw connections.

Rubber gaskets are typically manufactured from materials such as NBR (Nitrile Rubber), SBR (Styrene-Butadiene Rubber), HNBR (Hydrogenated Nitrile Rubber), EPDM (Ethylene Propylene Diene Monomer), Sili

GB/T 3103.3-2000 Fasteners — Tolerances — Flat washers GB/T 5286-2001 Flat washers for bolts, screws and nuts — General plan GB/T 9074.1-2002 Assemblies with bolts or screws and flat washers

The production of double-ended studs requires specific equipment and machine tools; however, the actual manufacturing process is relatively straightforward, primarily involving the following steps: Fi