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M16 M18 M20 Carbon Steel Hexagon Slotted Nut/Castle Nut

Name: M16 M18 M20 Carbon Steel Hexagon Slotted Nut/Castle Nut
Brand: Qewitco Fasteners Co., Ltd
SKU: 2115652032

Shandong, ChinaQewitco Fasteners Co., Ltd

US$0.04-0.07

1,000 Pieces

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Type

Hexagon Head

Model NO.

Slotted Nut/Castle Nut

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, GOST, BSW, ISO

Grade

4.8 5.6 6.8 8.8 10.9 12.9

Certification

ISO9001 CE

Delivery

20-30 Days

Finish

Plain , Zinc Plated or Customized

Packag Color

Customizable

Thread Standard

Unc/Unf/Unef/Uns/Bsw/Bsf/Metric Coarse/Metric Fine

Custom Order

Customization by Drawing/Sample

Price Terms

Fob/CFR/CIF/DDP/DAP

ODM/OEM

Available

Service

Custom-Made Service

Size Standard

Metric

Material Test Certificate

Have

Sample

Samples in Stock Are Free with Freight Collect

Color

Silver

Quality Control

100% Quality Inspection

Application

Connection,Fastening

Transport Package

Bulk Pack Small Boxed

Specification

M8-M48

Trademark

Qewitco

Origin

China

HS Code

731816

Production Capacity

10000ton/Year

Key features

High-Strength Anti-Loosening Design: Top slot design allows for cotter pins or wire locking to prevent loosening under vibration.

Diverse Material Options: Available in carbon steel, stainless steel, alloy steel, brass, and aluminum.

Wide Strength Grade Range: Covers Class 4.8 to 12.9 for standard to ultra-high-strength applications.

Customizable Surface Finishes: Zinc plating (clear/blue/yellow/black), nickel, chrome, and customized finishes.

Non-Standard Size Support: Supports sizes M8-M48 and larger with special threads and custom requirements.

International Standards Compliance: Conforms to DIN935, DIN937, ISO, ANSI, and other global standards.

Factory Direct Pricing: Competitive pricing with support for small trial orders and bulk customization.

100% Quality Inspection: Strict QC ensures every nut meets standards with full visual inspection.

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: ≤0.77hTerms 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.