Fish bolts (fish tail screws) are mostly used in rail joint bar (fish plate) connection for fixing purposes. Sometimes hexagon bolts can be used instead, but the connection phenomenon will occur. Compared with hexagonal bolts, railway fish-shaped bolts can save labor. Reasonable railway fish bolt structure design can make the connection stronger and safer.
Function of fish bolt:
1. Connect and tighten the holes of the fishplate to join the two rails together;
2. As a railway fastening system, it is used to connect and fix rails and rail clips (rail clamps) or rail joint bar and sleepers.
Bolts and nuts are usually used in pairs, sometimes in conjunction with washers or plastic pins when needed, to reinforce railway tracks.
Fish bolts applications:
Fishtail bolts are mainly used in track laying in the metallurgical industry, coking industry, and iron and steel industry, and the rail and rail joints are fastened.
Fishtail bolt specifications:
Standards: GB, DIN, ISO, ANSI/ASTM, B7, BS, JIS, etc.
Grade: 4.8, 6.8, 8.8, 10.9, 12.9
Material: Q235, 45#, 40Cr, 20Mntib, stainless steel, etc.
Size: M12-M24 or according to customer requirements
Length: 45mm-145mm or according to customer requirements
Surface: ordinary (oiled), oxide black, zinc, hot-dip galvanizing, wax, asphalt, dacromet, carburizing
Usage: used to fix the slide rail fish plate to the slide rail
Customization: OEM customization according to customer's drawings or samples
Sample: free sample
Common types of fishtail bolts:
1.BHON Fish Bolt
Size: 22×135, 24×135, 24×145, etc.
2.Cup Head Oval Neck Fish Bolt
Size: M18, M20, M22, M24, L as ordered
3.Heavy Hex Head Frog Bolts
Size:Dia.3/4"－1-3/8", Length up to 30"
Size: M16 to M48, L=100 to 500mm
Size: Customized according to customer's drawings