What surface finishes are available?

We provide various finishes including tin plating, copper plating, anodizing, painting, powder coating, and galvanizing.

What is your warranty policy?

We offer a warranty that includes replacement at our cost for any rejected products.

What certifications do you hold?

Our management system is certified under ISO9001:2015, and products comply with SGS, RoHS, and PPAP standards.

M3 M4 M5 M6 M8 Standard Heavy Duty Brass Threaded Inserts, Diamond Knurled Threaded Insert Nut for Plastic

Name: M3 M4 M5 M6 M8 Standard Heavy Duty Brass Threaded Inserts, Diamond Knurled Threaded Insert Nut for Plastic
Brand: Shenzhen In-sail Precision Parts Co., Ltd.
SKU: 863756585

Guangdong, ChinaShenzhen In-sail Precision Parts Co., Ltd.

US$0.05

500 Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Material

Brass

Type

Round Head

Model NO.

BTH

Connection

Common Bolt

Head Style

Round

Standard

DIN, GB, JIS, GOST, BSW

Grade

8.8

Base Material

Thermoset, Plastics, Thermoplastics, Rubber

Instatllation

Ultrasonic, Heat, Thermal, Press-in

Thread

Inch, Metric

Model Type

M3-M8

Product Quality

Warrenty

OEM Service

Offered

MOQ

Negotible

Technic

Turing, Milling, Cold Heading, Forged

Transport Package

PE Bag +Carton

Specification

BTH

Trademark

In-sail

Origin

Shenzhen, Guangdong

HS Code

7318160000

Production Capacity

500, 000PCS/Week

Key features

Diverse Material Options: Available in Brass, Aluminum Alloy, Stainless Steel, and Carbon Steel.

Comprehensive Surface Finishes: Offers plating, anodizing, painting, powder coating, and galvanizing.

Flexible Customization: Supports customization from samples, designs, and full custom requirements.

Wide Thread Range: Covers Metric M3-M8 and Unified Imperial #0-1/4 sizes.

Fast Delivery: Lead time of 5-15 working days for both peak and off-peak seasons.

Sample Availability: Samples are welcome for prototyping and series production verification.

Strict Quality Control: 100% inspection including visual and functional checks with ISO9001:2015.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceSelf-brandedPatents Awarded

Shenzhen In-sail Precision Parts Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 17 Years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤1.86h

AI-Powered supplier vetting

SummaryThe supplier demonstrates broad customization and product-development capabilities, including 3D software design, ODM services, and new products developed within the past year. It reports eight production lines, 21–30 quality-control staff, 11–20 years of cumulative R&D engineer experience, documented finished-product inspection instructions, and several management-system certifications. Export experience is established at 17 years, with exports representing 41%–50% of total sales and quotations available under FOB, CIF, CFR, and EXW terms. However, supplier-management, corrective-action, and complaint-handling procedures lack written records; there is no overseas warehouse, showroom, agent or branch, or offline trade-show participation. No valid manufacturing contract with related subcontractors and no SDK availability are also reported. Customer cases are not provided.

Supplier typeThe supplier provides ODM services, has 17 years of export experience, and operates eight production lines. Its overseas service footprint is limited because it reports no overseas agents or branches and serves zero listed countries directly.

CertificationsThe supplier reports TS 16949, ISO 14001, ISO 9001, ISO 14000, and ISO 22000 certifications, along with quality assurance in its quality-control processes. This is explicit evidence of multiple certifications and a stated quality-assurance function, although certification validity details are not provided.

After-Sales capabilityThe supplier has a customer-complaint procedure, but no written complaint-handling records, and its corrective and preventive action procedure also lacks written records. It has no overseas warehouse, showroom, agents, or branches, which limits demonstrated overseas service infrastructure.

R&D capabilityThe supplier reports 3D software design services, ODM capability, and new products within the past year, supported by 11–20 years of cumulative R&D engineer experience. However, it reports no available SDK, so the evidence supports product-development capability but not SDK-based development.

Production capacityThe supplier operates eight production lines, has in-stock capability, uses numerous inspection and manufacturing-related instruments, and follows uniform finished-product inspection instructions. Average lead time is within 15 working days in both peak and off-season, but no valid contract exists with related subcontractors, creating a documented manufacturing-governance weakness.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, flexible customization, and minor customization, and also provides 3D software design and ODM services. These statements directly demonstrate broad customization coverage.