Can I get samples before placing a bulk order?

Yes, samples can be sent upon request to verify quality and specifications.

What is the hardness and tolerance of the gaskets?

Hardness is HRC43-47 with thickness tolerance as precise as 0.005mm, ensuring no burrs.

Bolt Nut and Gasket /Bolt-in Spacer / Galvanized Flat Washer/Nut/Fw/Sw

Name: Bolt Nut and Gasket /Bolt-in Spacer / Galvanized Flat Washer/Nut/Fw/Sw
Brand: QINGHE SANJU TRADING CO., LTD.
SKU: 2079975925

Hebei, ChinaQINGHE SANJU TRADING CO., LTD.

US$0.02-0.08

5,000 Pieces

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Type

Flat Gasket

Material

Stainless Steel

Model NO.

M3-M20

Combination Washer Structure

A Type

Combination Washer Packaging

All Inclusive

Spring Washer Type

Standard

Performance

4.8, 8.8, 10.9s 12.9 Grade

Materials

Carbon Steel Q235

Surface Treatment

Black Oxide and Galvanized

Surface Processing

Electric Galvanizing and Hot Galvanizing

Transport Package

Export Packing

Specification

M3-M27

Trademark

SANJU

Origin

Hebei

HS Code

7318290000

Production Capacity

50000000

Key features

Customizable Sizes: Width ranges from 12.7mm to 1000mm; Length from 100mm to 5000mm; Thickness 0.005mm to 3.00mm.

High Precision Tolerance: Thickness tolerance as precise as 0.005mm with no burrs and high precision finish.

Diverse Material Options: Available in Carbon Steel Q235, Stainless Steel (304, 316, 316L, 201), and various grades.

Multiple Surface Treatments: Options include Black Oxide, Electric Galvanizing, and Hot Galvanizing for corrosion resistance.

Superior Mechanical Properties: Features strong pull strength, excellent toughness, and hardness between HRC43-47.

OEM and ODM Services: Full customization support for various types of screws, nuts, gaskets, and metal products.

Sample Availability: Samples can be sent upon request for quality verification before bulk orders.

Wide Product Range: Includes flat gaskets, spring washers, bolts, nuts, D buckles, sleeves, and anchor bolts.

Company profile

QINGHE SANJU TRADING CO., LTD.

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2019-04-04 CertifiedNearest Port: Tianjin PortAverage Response Time: ≤0.93h CertifiedTerms of Payment: T/T

AI-Powered supplier vetting

SummaryQINGHE SANJU TRADING CO., LTD. is a China-based limited company established in 2019, operating from Hebei with 15 employees. The supplier describes itself as an integrated manufacturing and trading company and reports four production lines, a 1,200 m² manufacturing area, milling cutter output of 3,000,000 pieces, and export activity across Africa, Southeast Asia/Mideast, Europe, and North America. It states that 71%–90% of sales are exports and offers FOB, CIF, and CFR quotation terms. The supplier claims export experience, after-sales service, broad product coverage, and cooperation with customers in multiple countries. However, its management-system certification is listed as NIL, and the available information does not substantiate specific customer references, formal innovation programs, or detailed customization capabilities.

Supplier typeThe supplier is identified as a combined business entity and describes itself as an integrated industry-and-trade company providing manufacturing, sales, and purchasing follow-up services. This indicates a hybrid manufacturing and trading model rather than a pure trading-only operation.

CertificationsThe supplier’s certification of management systems is explicitly recorded as NIL. Therefore, no management-system certification is evidenced in the provided information.

After-Sales capabilityThe supplier explicitly claims good after-sales service and describes a range of follow-up services intended to support procurement, distribution, and savings management requirements. These statements provide positive evidence of an after-sales service offering, although no service process or performance metrics are supplied.

Production capacityThe supplier reports an integrated manufacturing-and-sales operation, a 1,200 m² manufacturing area, four production lines, and annual milling cutter output of 3,000,000 pieces. It also states lead times of within 15 working days during off-peak periods and one month during peak periods, providing explicit evidence of established production capacity and defined fulfillment timelines.