Extended Expansion Bolts - Specially Designed for Ultra-Long Ceiling Hanging and Drying Racks

Customization: Available
Finish: Untread
Grade: -

Product Description

Basic Specifications
Model NO.
M6-M12
Head Type
Hex Head
Length
120mm-1000mm
Material
304 Stainless Steel
Standard
DIN, GB
Thread Type
Full Thread
Feature
Corrosion-Resistant
Measurement
Metric/Inch
Package
Carton Pallet
HS Code
7318150000
Product Description

These specialized products consist of a sleeve, screw rod, nut, spring washer, and flat washer. Engineered for high-load ceiling applications, they provide exceptional stability and safety.

Extended Expansion Bolts

Key Features

  • Extended Adaptability: Extra-long screw for deep anchoring and higher bearing capacity.
  • Special-purpose Design: Optimized for clothes racks and ceiling-mounted installations.
  • Internal Expansion: Minimizes surface damage while maximizing friction and interlocking force.
  • Durable Material: High-grade stainless steel for rust and corrosion resistance in humid environments.
Size & Technical Data
Model Overall Length (L) Sleeve Length Sleeve Diameter Screw Diameter Drilling Bit Nut Pair
M6*LL507.5M6610
M8*LL659.8M81013
M10*LL6512.5M101316
M12*LL6514.6M121518
Size Description
Product Detail Highlights
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Our products are manufactured using high-quality raw materials with a mature production process backed by years of industry experience. Every production stage is strictly controlled to ensure quality assurance.

Stainless Steel Guide

1. Common Types:

  • 201 Stainless Steel: Suitable for dry environments.
  • 304 Stainless Steel: Strong corrosion resistance, ideal for outdoor/humid use.
  • 316 Stainless Steel: Superior resistance for seawater and chemical media.

2. Identification of 304 Stainless Steel: Supports special testing solutions, chemical composition spectral analysis, and smoke testing.

Factory Overview
Manufacturing Excellence

Our expertise lies in high-performance anchor bolt metal products and fasteners, including ceiling anchors, hit anchors, wedge anchors, and more.

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Frequently Asked Questions
Q: What is the main application for these extended expansion bolts?
A: They are specifically designed for ultra-long ceiling hanging and drying racks, providing deep anchoring for maximum safety.
Q: How do I identify if the material is genuine 304 stainless steel?
A: You can use a professional 304 testing solution; if there is no color change, it is genuine. We also support spectral analysis and smoke testing.
Q: What range of lengths do you provide?
A: We offer lengths ranging from 120mm up to 1000mm to accommodate various ceiling depths.
Q: What is the standard lead time for orders?
A: Standard models typically ship within 15–30 days, while customized specifications may require 30–45 days.
Q: Are these bolts suitable for outdoor use?
A: Yes, since they are made of 304 stainless steel, they offer excellent corrosion and acid resistance, making them ideal for outdoor and humid environments.
Q: How is the fixation achieved during installation?
A: Fixation is achieved through friction and interlocking force as the nut is tightened, causing the expansion sleeve to hold firmly against the hole wall.

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