How long is the average lead time?

Lead time is within 15 workdays for both peak and off-peak seasons.

What payment terms do you accept?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

Is quality inspection performed on finished products?

Yes, 100% inspection including visual and function inspection is conducted.

302 Self-Tapping Fastening Inserts Repair Sleeves

Name: 302 Self-Tapping Fastening Inserts Repair Sleeves
Brand: Shenzhen In-sail Precision Parts Co., Ltd.
SKU: 685490262

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

US$0.10

1,000-9,999 Pieces

US$0.075

10,000-49,999 Pieces

US$0.055

50,000-999,999 Pieces

US$0.045

1,000,000+ Pieces

Product profile

Customization

Available

Material

Stainless Steel

Type

Round Head

Model NO.

302, 302H, 307, 308, 307H, 308H, 303, 347, 348

Connection

Common Bolt

Head Style

Round

Standard

DIN, ANSI, GB, JIS, GOST, BSW, OEM

Grade

6.8

Tolearance

ISO 2768-M or OEM

Finish

Clean, Zinc Plated, Black Oxide or OEM

Thread

6h, Unc, Unf, Whitworth or Find

Transport Package

PE Bag + Cartons

Specification

SGS, Material certification

Trademark

In-saiL

Origin

Shenzhen, China

Production Capacity

50k PCS/Week

Key features

Wide Material Compatibility: Suitable for Aluminium, cast iron, plastics, and non-ferrous metals.

Permanent Fastener Solution: Designed for materials with insufficient strength or frequent thread wear.

Extensive Size Range: Available in sizes M2 to M30 with equivalent UNC, UNF, and BSW threading.

Self-Tapping Design: Cuts its own threads when driven into drilled or cored holes.

Multiple Customization Options: Offers customization from samples, designs, full, flexible, and minor options.

ISO Standard Tolerance: Tolerance available in ISO 2768-M or OEM specifications.

Diverse Finish Options: Includes Clean, Zinc Plated, Black Oxide, or OEM finishes.

Comprehensive Thread Options: Supports 6h, Unc, Unf, Whitworth, or custom thread types.

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: ≤1.82h

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.