Non-Standard Stainless Steel Half Thread Black Steel Slotted Round Head Machine Screws

Product Description

Product description 

Fastener production customization

We Specializing in the development and production of screws, automatic turns, shafts and special-shaped fasteners. Our metal fasteners are widely used in mobile phones, computers, printers, household appliances, telecommunications, computer imaging equipment, etc

 

Production Details

Availlable Material	1.Stainless Steel: SS201, SS202,SS302,SS303, SS304, SS316, SS410, SS420,SS430,etc.
	2,Steel:C45(K1045), C46(K1046),C20,etc.
	3.Brass or brass alloy:H63(CuZn37,C2720);H65(CuZn36,C2700);H68(CuZn33);
	H70(CuZn30,C2600);H90(CuZn10,C2200),etc
	4.Bronze: C51000, C52100, C54400, etc.
	5.Iron: 1213, 12L14,1215,etc.
	6.Aluminum or aluminum alloy: Al6061, Al6063, etc.
	7,Carbon steel : C1006,C1008,C1010,C1016A,C1018A,C1022,C1035K,C1045K,etc.
	8, Titanium and Titanium alloy : TAD,TA1-TA8,TB2,TC1-TC10,etc.
	9,Silver and Silver alloy:AgCu3,AgCu7.5,AgSn3~5,AgPb0.4~0.7,AgPd3~5,AgNi10,etc.
	10,Alloy steel : SCM435,10B21,40Cr,etc.
Grade	4.8 6.8 8.8 10.9 12.9 or Grade4,grade 5, grade 8,
Specification	M0.8-M24,According to the drawing provided by the customer.
Surface Finishing	Zn- Plated,Ni-plated,Passivated,Tin-plated,Sandblast and Anodize,
	Chromate, Polish,Electro Painting,furnace Black, Black Anodize,Plain,Chrome plated,
	Hot Deep Galvanize(H. D. G. ) etc.

 

Screw type
 

Company Introduction

 

Customer & Feedback

Production process

Quality inspection

#	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

 

Packaging & delivery

FAQ

Q: Are you trading company or manufacturer ?
A: We are factory. we have more than 20 years experience of fasteneral making in China.
Q: What is your terms of payment ?
A:  For the first cooperation,  we can do 20- 30% deposit in advance by  T/T, Paypal,Western Union,Money gram and Check in cash, the balance paid against the copy of waybill or B/L.
B, After cooperated business, we can do 30 -60 days AMS for support customer business.
Q: Do you provide samples ? is it free or extra ?
A: 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.
B, Yes, 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.
Q: How long is your delivery time?
A: Generally it is 3-5 working days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: What is yr price terms ?
A, For the smaller  order quantity , Our price terms is EXw, but we will do my best to help client to shipment or supply the cheapest transport cost for customer reference.
B, For the large order quantity , we can do FOB & FCA,CNF & CFR & CIF,DDU & DDP etcs.
Q: What is yr transport method ?
A, For the samples shipment, we use DHL,Fedex,TNT,UPS,Post and other courier for samples shipment.
B, For the massive orders, Usually, we use Sea,air, rail  and others shipment or as customer shipment's request.