anchor bolt from China manufacturer - Luoyang Gongyan Technology Co., Ltd

Place of Origin:

Henan, China (Mainland)


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Product Detail

Type: Steel Coil

Brand Name: Gongyan

Technique: Hot Rolled

high strength: high extension

Common hollow anchor bolt has been widely used in tunneling, mining, slope stabilization and roof supporting of underground works.

Common hollow anchor bolt consists of anchor rod, anchor head, grouting stopper, arch plate and nut. The anchor rod is made of seamless steel tube with high strength. Hex nut and hemispherical nut are available which are all machined. You can also choose square plate or round plate.

Common hollow anchor bolt has been widely used in tunneling, mining, slope stabilization and roof supporting of underground works, suitable for good or medium rock surroundings.

Specification:

specification	GY25	GY28	GY32
external diameter(mm)	25	28	32
Breaking load(KN)	≥150-180	≥180-220	≥220-250
Interior diameter(mm)	≥15	≥17	≥22
drilling diameter(mm)	42	42	51
thread type	left hand
standard length(m)	1.0/1.5/2.0/2.5/3.0/3.5/4.0/4.5/5.0/6.0
length tolerance	±2.5%