High Accuracy Stainless Steel SEMS Screws With Self Tapping Thread A2-70 Grade

Stainless Steel Phillips Pan Head Sems Screw with Self Tapping Thread

What is a SEMS Screw?
A SEMS Screw is a generic term used to describe a screw pre-assembled with a free-spinning lock washer. It is a permanent assembly with the washer held in place by the major diameter of the screw thread being larger than the hole of the washer. The SEMS screw is simple, easy to use and available in many different styles making it well suited for many applications.

Advantages of the SEMS Screw
1- Low cost and widely available
2- Increases productivity by eliminating hand assembly of individual components
3- Permanent assembly assures that the washer is not dropped, lost or forgotten
4- Ease of use with hand drivers and in automated production programs
5- Available in most screw and washer combinations

Company Introduction

Advantages of our factory

1. Professional manufacturer for bolt,screw,nut,washer,PEM fasteners ,cnc lathe machine parts,automatic lathe parts,milling machine parts,stamping part etc.

2. More than 15 years experience

3. 100% inspection on critical dimensions with high accuracy +/-0.01-0.05mm

4. Factory direct price and on time delivery

5. Sample available

6. OEM workable

We are the professional manufacturer of Screws and Rivets, located in Zhejiang province. The biggest advantage of our company is to specialize in producing various kinds of special screws. So customized fasteners can be made as customer's sample or drawing.

Our target is middle - and high-end customers,quality and brand are our ultimate pursuit.

FAQ

Q: How do you control your quality?

A: We have our in-house QC daily and hire third party for randomly inspection.

Q: Could you provide free samples?

A: For our regular products, we offer free samples. For customized bolts, tooling and moulding charges need. All free samples not including its courier charge.

Q: Do you accept small order?

A: Sure, we can accept any orders, we keep lots of stock for ALL STAINLESS STEEL FASTENER, CARBON STEEL NUT AND PART BOLT,Like hex weld nut, cage nut, wing nut, square weld nut,cap nut, hex nut,flange nut.Metric 8.8Grade,10.9Grade 12.9Grade Hex bolt and Hex Socket cap screw,Part ASME Hex cap screw.

Q: How about your delivery time?

A: General speaking, if the goods is in stock, we can delivery them with 2-5days, If the quantity is 1-2container, we can give you with 18-25days,if the quantity is more than 2 container and you are very urgent, we can let factory priority produce your goods.

Q: What is your terms of payment ?

A: We can accept T/T,L/C for general order ,Paypal and Western union for small order or samples order.

If you are interested in our Sem Screws,pls feel free to contact with us.

Ningbo Oukailuo Hardware Co., Ltd. was founded in 1999 and is a leading fastener manufacturer. Company passed ISO9001:2015 quality management system certification, and has ROHS, SGS certificate. Our main export markets are North America, Europe, Oceania, Korea, etc.

We have our own heat treatment shop, electroplating shop, Ruspert workshop. The heat treatment process is very important for product hardness, and our technology can ensure it. Electroplating includes galvanization, yellow zinc, black zinc, and green zinc. All galvanization meets ROHS. Salt spray time can be up to 96 hours. Ruspert can do most of the colors. The salt spray time can be 500 hours and 1000 hours.

OuKaiLuo have over 19 years experience inventory management, managing a growing number of customer production lines on-site to ensure ‘just-in-time’ delivery. We offer many variations of Direct Line Feed management to suit individual needs.