Can these be used with regular carbon steel bolts?

It is recommended to use them with stainless steel bolts or rods to prevent galvanic corrosion. Mixing materials may reduce longevity.

Yes, these high-quality stainless steel connecting nuts can be reused multiple times if the threads are undamaged.

What is the difference between these and regular hex nuts?

These connecting nuts are longer and threaded on both ends, allowing them to join two separate threaded components, whereas regular hex nuts are shorter and used on one end of a bolt.

High Precision Expansion Concrete Nut and Washer Sleeve Anchor

Name: High Precision Expansion Concrete Nut and Washer Sleeve Anchor
Brand: Qewitco Fasteners Co., Ltd
SKU: 2110670892

Shandong, ChinaQewitco Fasteners Co., Ltd

US$0.05-0.15

1,000 Pieces

Sample price:US$20.00/bag.Request sample

Product profile

Customization

Available

Application

Concrete Anchoring

Finish

Zinc Plated

Model NO.

Sleeve Anchor

Grade

4.8

Head Style

Hex Head

Material

Steel

Standard

DIN

Type

Expansion Anchor Bolt

Finish II

Mechanical Galvanized Thickness: Min 43 Um

Terms of Trade

OEM/ODM

Transport Package

Bulk Pack Small Boxed

Specification

12mm(M10 )x 80mm

Trademark

Qewitco

Origin

China

HS Code

7316000000

Production Capacity

50000/Month

Key features

Premium Stainless Steel Material: High-quality stainless steel construction for maximum corrosion resistance and long-lasting durability

Class 6, 8 & 10 Strength Grades: Available in multiple strength classes to suit different load and application requirements

Hexagon Coupling / Connecting Nuts: Designed to securely join two threaded rods, bolts, or studs together

Superior Rust Resistance: Ideal for humid, outdoor, marine, and corrosive environments where regular steel would fail

Precision Threading: Fully threaded on both ends with accurate metric threads for strong, reliable connections

Professional Hex Design: Easy to install and tighten using standard wrenches, providing excellent torque performance

Wide Application Range: Perfect for construction, architectural projects, tubing, machinery, furniture frames, and industrial use

High-Quality Manufacturing: Rigorously tested for dimensional accuracy, strength, and reliability

Company profile

Years of Export ExperienceExperienced TeamSelf-brandedHigh Repeat Buyers Choice

Qewitco Fasteners Co., Ltd

Shandong, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2003-12-05Average Response Time: ≤0.70hTerms of Payment: T/T

AI-Powered supplier vetting

SummaryThe supplier demonstrates established export experience, with 90% of sales from exports and 22 years of exporting. It has ISO9001:2015 certification, raw-material traceability, quality assurance, and 100% finished-product inspection, although inspection is performed by packing staff and only two quality inspectors are reported. Customization is broad, covering samples, designs, full customization, minor customization, and flexible customization. Service strengths include in-stock capability, stated lead times within 15 workdays in both peak and off-season, and multiple payment and quotation terms. Limitations include no overseas warehouse, showroom, agent, branch, or overseas service-country coverage, no Fortune 500 cooperation, no new products launched in the last year, one R&D engineer, no popular-brand OEM, and an undocumented corrective/preventive-action process. Financial credibility cannot be assessed because the provided financial figures are excluded from evaluation.

Supplier typeThe supplier is strongly export-oriented, reporting 90% export sales and 22 years of export experience. It can provide in-stock service and accepts FOB, CIF, CFR, and EXW terms, but reports no overseas warehouse, showroom, agent, branch, or overseas service-country coverage.

CertificationsThe supplier reports an ISO9001:2015 certificate for both sustainable development management and management systems, plus other product compliance or sustainability certifications. The specific additional certifications are not identified, so the evidence supports ISO9001 holding but not broader certification strength.

R&D capabilityThe supplier reports one R&D engineer and no new products launched during the previous year. It also reports no available SDK and no popular-brand OEM capability, which indicates limited documented innovation evidence.

Production capacityProduction-related evidence includes raw-material traceability, 100% finished-product inspection, quality assurance, four own-brand quality-control capabilities, inventory capacity, and lead times within 15 workdays in both peak and off-season. Only two quality inspectors are reported, and finished products are checked by packing staff, so production capability is positive but quality-control depth is limited.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. This is direct evidence of broad customization capability.

Product Q&A

Q:What material are these connecting nuts made from?

These are made from high-quality stainless steel, offering excellent corrosion resistance and strength.

Q:What do Class 6, 8, and 10 mean?

These refer to the strength grades of the nuts. Higher classes (especially Class 8 and 10) provide greater tensile strength and load-bearing capacity.

Q:What are hexagon connecting nuts used for?

They are used to connect two bolts or threaded rods, commonly applied when extending length or creating strong joints in assemblies.

Q:Are these suitable for outdoor or marine use?

Yes. Stainless steel provides outstanding rust and corrosion resistance, making them perfect for outdoor, coastal, and marine environments.

Q:What sizes are available?

Multiple metric sizes are offered. Please refer to the size options in the listing for current availability.