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Stud Bolt

Name: Stud Bolt
Brand: YONGYI

Product Introduction Stud bolts are specialized double-ended threaded fasteners designed for automotive assembly scenarios where through-hole installation is required, crafted from high-strength alloy steel or stainless steel via precision rolling and heat treatment. Both ends of the bolt are processed with uniform and accurate threads, allowing for flexible matching with nuts on either side to achieve bidirectional fastening. The middle unthreaded section (shank) is customized in diameter and length according to different application requirements, ensuring stable load-bearing and centering effects during installation. The surface can be treated with anti-corrosion technologies such as electro-galvanizing, dacromet coating or phosphating, effectively enhancing resistance to rust and wear, and adapting to the harsh working environments of automotive engines, chassis and other components. Fully compliant with automotive industry standards, these stud bolts feature high tensile strength and fatigue resistance, providing reliable and long-lasting fastening solutions. Product Application Mainly applied to the fixed connection of key components in automobiles, including the installation of engine cylinder heads and exhaust manifolds, the fastening of gearbox casings and transmission shafts, the connection of chassis suspension brackets and frame structures, as well as the assembly of turbochargers and intake systems. They are also widely used in the maintenance and refitting of commercial vehicles, engineering machinery and special-purpose vehicles, serving as an essential fastening component for scenarios where one-side installation and disassembly are inconvenient.

Category:

Products

Auto parts

Email:

sales@yyfasteners.com

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Ordering and Documentation

Confirm the product standard or drawing, thread and dimensions, material or property class, surface finish, quantity, packing and destination before quotation.

Required inspection, material, mechanical-property, coating and packing documents must be listed in the inquiry. Availability, lead time and commercial terms are confirmed for the specific order.

Send YONGYI your purchase list or drawing.

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Stud Bolt Specifications

Product FamilyThreaded Rods

StandardConfirm by drawing or purchase specification

MaterialMaterial to be confirmed with the order

FinishSurface finish to be confirmed

YONGYI supplies Stud Bolt for industrial, OEM and project purchasing. This page identifies the requested product family, standard, material, grade and finish so buyers can compare it with their drawing, bill of materials or technical specification.

Standard designations are common market references. Final dimensions, tolerances, mechanical properties, coating requirements and thread fit are confirmed in the quotation or approved drawing before production.

Product	Stud Bolt
Category	Threaded Rods & Studs / Threaded Rods
Referenced Standard	Confirm by drawing or purchase specification
Size / Thread	Confirm nominal size, thread and length with the inquiry
Material	Material to be confirmed with the order
Grade / Property	Mechanical property requirement to be confirmed
Surface Finish	Surface finish to be confirmed
Packaging	Carton, bag, pallet or project-specific export packing after quantity and unit weight are confirmed.

Typical Applications

Construction suspension, supports, equipment mounting and flange connections
Cut-to-length or drawing-based industrial fastening requirements
Matched supply with nuts, washers and specified surface protection

Information Required for an Accurate Quote

Nominal diameter, thread system, pitch and length where applicable
Required standard, material and property class or hardness
Surface finish, coating standard and any thickness or corrosion requirement
Order quantity, packing method, destination and required supporting documents

Quality and Order Documentation

Depending on the agreed order and available production records, documentation may include an approved drawing, dimensional inspection, material or mechanical-property report, coating report, packing list and shipment photos. Required documents must be stated before quotation.

FAQ

Can this product be supplied to a drawing?	Drawing-based and sample-based requirements can be reviewed. Feasibility, tolerances, tooling, MOQ and lead time are confirmed after technical review.
How should I request an alternative standard?	Send the original specification and identify any acceptable alternative. YONGYI will list confirmed compliance and any technical deviation separately.
Can coating and test documents be included?	Yes, when agreed before order. State the coating specification, test scope, inspection party and document format in the inquiry.