M1.7x5mm Black Zinc Steel Cross Head Machine Screws

Material

carbon steel

Grade

4.8/ 6.8 /8.8 /10.9 /12.9

specification

M1.7*5

Lead time

3 working days

Certificate

ISO14001 /ISO9001 / IATF16949

Surface Treatment

BLACK ZINC

#

Process Name

Checking Items

Detection frequency

Inspection Tools/Equipments

1

IQC

Check raw material: Dimension, Ingredient, RoHS

Caliper, Micrometer, XRF spectrometer

2

Heading

Outward appearance, Dimension

First parts inspection: 5pcs each time

Regular inspection: Dimension -- 10pcs/2hours; Outward appearance -- 100pcs/2hours

Caliper, Micrometer, Projector, Visual

3

Threading

Outward appearance, Dimension, Thread

First parts inspection: 5pcs each time

Regular inspection: Dimension -- 10pcs/2hours; Outward appearance -- 100pcs/2hours

Caliper, Micrometer, Projector, Visual, Ring gauge

4

Heat treatment

Hardness, Torque

10pcs each time

Hardness Tester

5

Plating

Outward appearance, Dimension, Function

MIL-STD-105E Normal and strict single sampling plan

Caliper, Micrometer, Projector, Ring gauge

6

Full Inspection

Outward appearance, Dimension, Function

Roller machine, CCD, Manual

7

Packing&Shipment

Packing, Labels, Quantity, Reports

MIL-STD-105E Normal and strict single sampling plan

Caliper, Micrometer, Projector, Visual, Ring gauge

Q1:Are you a factory or a trading company?

We are manufacturer .

1.thus making sure you get the products with best price.

2.working with us, Factory direct sales, quality is more guaranteed.

3.however, in order to meet the needs of customers, we can also help customers integrate resources and assist customers in purchasing. (We are a manufacturer for making kinds of fasteners over 22 years, we have superior relevant suppliers.)

Q2:What types of customized parts do you provide?

It can be made according to the drawings and specifications provided by customers.for your special needs. we manufacture suitable fasteners according to your product characteristics.

Q3:Do you provide samples ? is it free or extra ?

Yes, if we had stock the available goods or have available toolings, we could offer the sample for free charge within 3 days ,but do not pay the cost of freight.
If the products is custom maked for my company, I will charge the tooling charges and supply the samples for customer approval within 15 working days, My company will bear shipping charges for smaller samples.

Q4:How does your company guarantee product quality?

1.Each link of our products has a corresponding department to monitor the quality.From the source to the delivery, the products are in strict accordance with THE ISO process, from the previous process to the next process flow, all are confirmed that the quality is correct before the next step.

2.We have a special quality department responsible for the quality of the products. The screening method will also be based on different screw products, manual screening, machine screening.

3.We have fully inspection systems and equipments from material to products, each step confirm the best quality for you.