Hot-Dip Galvanized Steel Pins for Pin-Type Insulators

Hot-dip galvanized steel pins for pin-type

insulators, with different shaft and

mounting configurations for compatible

overhead line assemblies.

Category: Power Fittings

Product Details

1 Product Attributes （General specification）

Product Name	Electric Power Taper Stud Bolt, Tapered Pin for Transmission Pole
Standard	Power fitting industry custom specification
Material	Carbon Steel Q235 / 4.8 grade
Surface Treatment	Hot-dip Galvanized (HDG) for anti-corrosion
Structure	Tapered conical body + threaded end, equipped with hex nut and flat washer, optional rubber sealing ring
Origin	Hebei · Handan · Yongnian — Integrated Manufacturer & Exporter
MOQ	500 PCS (negotiable for trial orders)

2 Performance Parameter （Reference data）

Tensile Strength	≥400 MPa
Yield Strength	≥240 MPa
Galvanized Layer Thickness	85μm minimum
Anti-corrosion Life	Long service life for outdoor overhead line environment
Working Temperature	-40 ℃ ~ +120 ℃

3 Optional Types

With rubber sealing ring	Waterproof sealing, prevent water ingress at assembly joint, suitable for wet, coastal areas
Without rubber sealing ring	Standard version, simple structure, widely used in ordinary inland overhead power lines

4 Size Table （Common models）

Common specifications of power taper stud bolts, dimension data for reference only, customized taper size and length available.

Model	Nominal Size	Big End Diameter(mm)	Small End Diameter(mm)	Total Length(mm)	Thread Spec	Version	Surface Finish
TS-M16	M16	24	18	160	M16	With / Without Seal Ring	Hot-dip Galvanized
TS-M18	M18	27	20	180	M18	With / Without Seal Ring	Hot-dip Galvanized
TS-M20	M20	30	22	200	M20	With / Without Seal Ring	Hot-dip Galvanized
TS-M22	M22	33	24	220	M22	With / Without Seal Ring	Hot-dip Galvanized
TS-M24	M24	36	26	240	M24	With / Without Seal Ring	Hot-dip Galvanized

5 Applications & Packaging

Applications	Overhead transmission line, electric utility pole, power fittings assembly, cross arm fixing, distribution network pole hardware. The tapered design enables tight, gap-free fit and stable locking.
Packaging	Plastic bags + cartons, pallet packing for bulk shipment
Documents	PI, Packing List, Certificate of Origin, Material Test Certificate
Payment Terms	30% T/T in advance, balance before shipment
Lead Time	10 – 18 days according to models and quantity