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Fully Threaded Stud Multi‑Grade Carbon Alloy Stainless Steel M6‑M100 for High‑Pressure Service

Fully Threaded Design
Double-End Tightening
Superior Fatigue Resistance
Flexible Length Adjustment

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  • Overview
  • Description
  • Applications
  • Why Choose Jeekuu Hardware?

Overview

Product General Information

Material Type

Typical Grades

Typical Grades

Application

Carbon Steel

35#, 45#

Grade 8.8

General-purpose applications with moderate strength requirements

Alloy Steel

40Cr, 35CrMoA, 42CrMoA, SCM435

Grade 10.9, 12.9

High-strength, high-temperature, or alternating load conditions

Stainless Steel

A2-70, A4-80

Class 70, 80

Corrosive environments requiring superior rust resistance

Corrosive environments requiring superior rust resistance

A193 B7, B8, B8M

A193 B7, B8, B8M

Petrochemical and high-temperature/high-pressure service

Size Range

· Nominal Diameter: M6 – M100 (Metric); 1/4" – 4" (Inch)

· Length Range: 30mm – 3,000mm (custom lengths available)

· Thread Tolerance: 6g / 6h (per ISO 965)

· Thread Types: Coarse Pitch (standard), Fine Pitch (optional)

· Thread Direction: Right-Hand (standard), Left-Hand (customizable)

A comprehensive range of surface finishes is available for fully threaded stud bolts to suit various environmental conditions and performance requirements:

Surface Finish

Features

Suitable Environment

Black Oxide

Economical protection, black appearance

Low-corrosion, indoor environments

Phosphating

Basic rust prevention, improves lubricity

Moderate humidity environments

Moderate humidity environments

Thick coating, excellent corrosion protection

Outdoor, high-humidity environments

Dacromet / Zinc-Aluminum Coating

High salt spray resistance (720h+), no hydrogen embrittlement

Marine climate, severe corrosive conditions

Teflon® / PTFE Coating

Ultra-low friction coefficient (≤0.05), excellent anti-stick and chemical resistance, service temperature range -200°C to +260°C

Chemical valves, food processing machinery, offshore platforms, applications requiring anti-stick and self-lubricating properties

Product Commercial Terms

Minimum Order Quantity

1000

Payment Terms

T/T 30% Deposit

Packaging Details

Small Pack+Carton+Pallet

Delivery Time

7-60days

Description

Description

A fully threaded stud bolt is a fastener with continuous threads running from one end to the other, with no unthreaded shank in between. It is typically used in conjunction with nuts to connect two components with clearance holes.

Key Features

Fully Threaded Design: Provides full-thread engagement along the entire length, maximizing thread contact area for higher clamping force and more uniform stress distribution.

Double-End Tightening: Allows nut installation on both ends for flexible assembly and convenient disassembly during maintenance.

Superior Fatigue Resistance: Eliminates stress concentration at the thread-shank junction, making it ideal for alternating loads and vibration-prone applications.

Flexible Length Adjustment: Nuts can be positioned anywhere along the threads to accommodate varying joint thicknesses.

Applications

Applications

Fully threaded stud bolts, with their full-thread engagement, high clamping force, and uniform stress distribution, are widely used in the following fields:

Petrochemical

Pipe flange connections, valve installation, reactor heads, heat exchanger tube sheets

Power Generation

Power plant boilers, steam turbines, nuclear island primary equipment

Pressure Vessels

Vessel flanges, manholes, handhole sealing structures

Marine & Offshore

Hull structures, deck equipment, offshore platform mounting

General Machinery

Compressors, pump bodies, reducers, large mold assemblies

Valve Manufacturing

Bonnet-to-body connections, packing gland fastening

Why Choose Jeekuu Hardware?

Why Choose Jeekuu Hardware?


Full‑Category Supply, One‑Stop Sourcing


We provide an extensive full‑category portfolio of industrial fasteners manufactured from carbon steel, stainless steel and alloy steel. Our product scope covers metric, inch and American standard specifications, alongside flexible non‑standard custom manufacturing to match your unique project requirements.


By consolidating diverse fastener demands under one supplier, we streamline your whole procurement workflow. You can cut down communication overhead from multiple vendors, simplify order coordination and logistics arrangement, and effectively control your overall purchasing and administrative costs. Whether you need standard off‑the‑shelf items or tailor‑made special fasteners, we support one‑stop sourcing to meet your project‑wide fastening needs.


10+ Years of Export Experience, Reliable Quality


Backed by more than ten years of specialized fastener export experience, our team accumulates deep practical know‑how covering raw material selection, forming processes, heat treatment, surface finishing and full‑cycle quality control.


We strictly monitor every production phase from incoming material inspection through finished‑product testing. Rich export‑oriented manufacturing experience helps us avoid common production pitfalls, maintain consistent batch‑to‑batch quality, and guarantee stable, on‑time and dependable delivery for each customer order. You can count on our proven expertise to reduce quality risks for your global projects.


Serving 20+ Countries, Global Standards Expertise


Our fastener products have been successfully exported to over 20 countries and regions across the globe. We possess solid familiarity with diverse international technical specifications, certification requirements and local environmental compliance rules for both mature European and American markets as well as fast‑growing emerging markets.


We can interpret your drawing requirements, match proper material grades, surface treatments and standard compliance accordingly. Based on target‑market constraints, we deliver accurate, localized fastener solutions instead of generic one‑size‑fits‑all products, helping your goods smoothly clear local technical and compliance barriers.


Efficient Response, Professional Service


Our seasoned foreign‑trade team stands ready to deliver fast, responsive communication throughout your whole cooperation cycle. Our service spans professional technical consultation, drawing review, quotation support, production progress follow‑up, order tracking all the way through to shipment arrangement and after‑sales support.


We are capable of adjusting production schedules to accommodate urgent order demands whenever possible. Beyond simple product supply, we focus on long‑term value creation for clients. We aim to act as your dependable, long‑term strategic fastener partner to support your continuous business growth.

Fully Threaded Stud Multi‑Grade Carbon Alloy Stainless Steel M6‑M100 for High‑Pressure Service

Fully Threaded Design
Double-End Tightening
Superior Fatigue Resistance
Flexible Length Adjustment

Request a Quote

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