What bolts match F959 / F959M washers?

These DTI washers are perfectly suitable for A325, A490 imperial structural bolts and 8.8/10.9/12.9 grade metric high-strength structural bolts.

Are these standard size DTI washers customizable?

We provide standard DTI washers with complete sizes, and support customized surface treatment, non-standard dimensions and bulk OEM processing for large construction and wind power projects.

A325, A490 High Strength Structural Bolts

ASTM F959-2017, ASTM F959M-2017

High-Strength Carbon Steel Washers for A325 Structural Applications

Name: High-Strength Carbon Steel Washers for A325 Structural Applications
Brand: Qingdao Vanhon Machinery Technology Co., Ltd.
SKU: 2291624755

Shandong, ChinaQingdao Vanhon Machinery Technology Co., Ltd.

US$1.00-500.00

1,000 Pieces

Product specifications

F959

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Type

Flat Gasket

Material

Carbon Steel

Model NO.

F959

Combination Washer Structure

A Type

Combination Washer Packaging

Spring Washer Type

Standard

Standard Compliance

Compliant with ASTM F959 / F959m International Ind

Core Function

High-Precision Design for Accurate Bolt Tension Mo

Premium Material

High-Strength Carbon Steel Base, Pressure and Defo

Wide Compatibility

Compatible with A325, A490 and 8.8-12.9 Grade Stru

Surface Finish

Available in HDG, Black Oxide, Zinc Plated Anti-Co

Precise Dimension

Standard Tolerance, Complete Metric & Imperial Siz

Stable Structure

One-Piece Stamping Structure with Uniform Force Be

Application Scenarios

Widely Used in Wind Power, Bridge, Steel Structure

Environmental Resistance

Excellent Anti-Corrosion and Anti-Aging for Harsh

Custom Service

Support Bulk Customization and Stable Mass Supply

Transport Package

Box, Carton, Pallet

Specification

1/2" 5/8" 3/4" 7/8" 1" 1-1/8" 1-1/4" 1-3/8" 1-1/2"

Trademark

vkf

Origin

China

HS Code

7318220000

Production Capacity

300 Tons/Month

Key features

Fully compliant with ASTM F959 / F959M international industrial standards, universal for global structural projects

High-precision tension sensing design, real-time bolt tension monitoring to avoid structural loosening risks

Made of high-strength carbon steel and alloy steel base materials, excellent compression resistance for heavy-duty industrial applications

Perfectly compatible with A325, A490 and other mainstream structural bolts for accurate assembly

Available in hot-dip galvanized, black oxide and other finishes, anti-corrosion and anti-aging for harsh working environments

High-precision integral stamping process with tight dimensional tolerance, flat surface and perfect fitting performance

Complete size coverage of F959 imperial and F959M metric series to meet global diverse assembly requirements

Widely applied in steel structure, bridge engineering, wind power, marine and heavy construction projects

Uniform material structure and stable force bearing, long service life and low maintenance cost

Support bulk customization and OEM service, sufficient stock and stable supply for large-scale engineering procurement

Company profile

OEM ServicesMulti-language PioneerImporters and ExportersHigh Repeat Buyers Choice

Qingdao Vanhon Machinery Technology Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2023-03-01Nearest Port: shanghai, tianjin, ningboAverage Response Time: ≤0.01h

AI-Powered supplier vetting

SummaryQingdao Vanhon Machinery Technology Co., Ltd. is identified as a trading company and limited company offering vehicle lifts, simple parking lifts, lift accessories, and hardware accessories. It reports OEM service for popular brands, broad customization options, inventory capability, and substantial export orientation, with Europe and North America listed as primary markets. However, the supplier has only four employees and one R&D engineer, launched no new products in the previous year, has no available SDK, and holds no stated management-system certifications. Quality-control evidence is weak: test equipment is reported as zero, while quality assurance and traceability statuses are unknown. Written procedures are absent for corrective actions and complaint handling. Financial records are referenced for three years, but no financial results are provided. No specific customer cases are disclosed, although OEM service for well-known brands is explicitly claimed.

CertificationsThe supplier’s certification of management systems is explicitly recorded as “NIL.” No certification is identified in the provided information, so there is no evidence of certification-based compliance strength.

After-Sales capabilityThe supplier has inventory service capability and accepts multiple payment methods, but it has no written procedures or records for corrective and preventive actions or effective customer-complaint handling. Its service-capability assessment has relevant records but no written procedure, and it has no overseas warehouse or showroom.

R&D capabilityThe supplier reports one R&D engineer with one year of total R&D experience, launched no new products during the previous year, and has no available SDK. These explicit indicators show limited demonstrated innovation activity, although design and customization services are available.

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

Product Q&A

Q:How long is your delivery time?

Generally it is 5-10 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.

Q:Do you provide samples?is it free or extra?

Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q:What is your terms of payment?

Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment.

Q:Can you send me a price list?

Due to a lot of kinds of fasteners, we quote prices accoridng to sizes, quantity, packing only.

Q:What is the difference between F959 and F959M DTI washers?

ASTM F959 refers to imperial inch-size DTI washers, while ASTM F959M represents metric millimeter-size DTI washers. They are designed for different standard structural bolts with identical tension detection function and high-strength performance.