What is the inspection process?

We perform 100% inspection on finished products, including visual and functional checks, following uniform instructions.

What are the available surface treatments?

Options include Plain, Passivating, Black, Color-Zinc, and Blue-White Zinc.

Where is the nearest shipping port?

The nearest port is Shenzhen Port.

Left-Hand Threaded Alloy Steel Socket Head Screws 91670A537

Name: Left-Hand Threaded Alloy Steel Socket Head Screws 91670A537
Brand: Shenzhen In-sail Precision Parts Co., Ltd.
SKU: 862907045

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

US$0.01

100 Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Shape of Head

Raised Countersunk Head

Model NO.

LF-91670A537

Surface Finishing

Cleaning

Certification

ISO, RoHS

Customized

Non-Customized

Model No.

Machine Screw

Series

ISO1483 Self Tapping Screws

Surface Treatment

Plain,Passivating,Black,Color-Zinc,Blue-White Zin

Design

OEM Services Provided

Application

Machinery,Chemical Industry,Environmental

Inspection

100% QC Steps Inspect Before Shipment

Manufacture Processing

Cold Heading,Machining,Automatic Lathe

Export Markets

Global

Transport Package

PE Bag + Cartons, Blister Packing

Specification

SGS, Material certification

Trademark

In-saiL

Origin

Shenzhen, China

HS Code

7318160000

Production Capacity

1000K PCS/Day

Key features

ISO & RoHS Certified: Meets ISO9001:2015, ISO, and RoHS standards for quality and environmental safety.

Full Customization Available: Offers customization from samples, designs, flexible options, and minor adjustments.

Comprehensive QC Inspection: 100% inspection including visual and functional checks before shipment.

Rapid Lead Time: Production completed within 15 working days for both peak and off-peak seasons.

Flexible Payment Terms: Accepts LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

Low MOQ Requirement: Minimum Order Quantity starts from just 1 piece.

Advanced Manufacturing: Utilizes CNC spindle machines, automatic lathes, and cold heading processes.

Global Export Experience: 17 years of export experience with 8 production lines and 5 QA inspectors.

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: ≤1.37h

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.