Square head knurling step machine screws blacking color steel automotive fasteners

Square head knurling step machine screws blacking color steel automotive fasteners
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Steel: 10b21 Swrch35k 45k 40cr Scm435
Color: Black
Size: M3 M4 M6 M8
Basic Infomation
Place of Origin: Shanghai China
Brand Name: kinsom fasteners
Payment & Shipping Terms
Payment Terms: T/T
Product Description

Kinsom Fasteners are dedicated to helping your production run smoothly. Superior quality and excellent service are the keys to our success.

Our many years of expertise, unique manufacturing process, professional testing machine,and our commitment to complete Customer Satisfaction is your assurance of the finest craftsmanship and meticulous personal service - at factory to you prices that maximize savings.

We take pride in anticipating your needs, and in servicing them with short and medium-run custom fasteners that meet your toughest specification and your highest expectations.






1.Available Material: Stainless steel 304 `316 ,AISI303 ,AISI416, AISI420;

Carton steel/alloy steel 45K 35K,SWRCH22A,SWRCH18A,SWRCH08A, 10B21,SCM435;

Aluminum5052 6063F22,brass ,Titanium/Ti Alloy And so on;

According to customer's requirement

2.Standard: JIS,DIN,ANSI,ISO,BS,GB,Non standard is availabe and depends on customer's


3.Hardness/Heat treatment: Class 4.8-12.9

4.Type of Shank:Full thread/ Parcial thread/No thread

5.Drivers :slotted,six-lobe,pozi driver,square,triangle,8 point,phillips

6.Type of Head:flat,oval,truss,PF.round ,button,pan(JIS,ANSI),fillister,square

7. Surface Treatment:Zinc,nickel,gold brass,black/black oxide etc

8.Shank Diameter:M1.2-M30 customized by your need

9.Overall Length: 6-120MM

10.Salt Spray Test:24hr-1000hr

11.Testing equipment:Automatic Optic Inspector,Projecting Apparatus,Salt Spray Test,Hardness/Tensile Machine

12.Certification:SGS,RoHS,Material Certication,PPAP

13.Sample:Accepted,we will send samples for your approval

14.Package Description:Packing arranged in row accordingly into a corrugated Box, and then palletized, Or according to customers' requests.

15.Delivery Term:EXW,FOB,CIF,CNF

16.Lead Time:Samples10- 15workdays,Mass productions 15-20 workdays after payment received.

17.Payment Term;L/C, T/T, Paypal,Cash,Western Union




1. According to customer samples or drawings;

2.Submit samples for customer's approval;

3.Free samples if we have stock or just have current same molding to produce it.

4.Provide in door or third party inspeciton report. PPAP file /SGS/material ,mechanical property ,dimensional report.

5.Whole fastening solutions,whether you need cold forging or machining process to get this parts,Whether you need design advice,

help with choosing the right technology, or assistance in reviewing an existing design for cost efficiency and quality,

We have the solution for you.

6.OEM ODM/ Neutral Packaging and label;


Custom Labels and Packaging

Shanghai Kinsom Precision Hardware Co.,Ltd(Kinsom Fasteners)will package specific quantities by your specific needs,
show your own part number on bag or logo on box labels . Invoices, PI ,Packaging List and other paperwork also can be added your own number.

Wanna resell your fasteners ? It s no problem, kinsom fasteners provide the Neutral Packaging.
The custom labels,logo and packaging helps you track them and reselling.


Phillips pan head machine screws with flat split washer 3 parts zinc coating kinsom fastenersPhillips pan head machine screws with flat split washer 3 parts zinc coating kinsom fasteners

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Get in touch with us
Tel : +86-18114615363
Fax : 86-512-5527-0346
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