DIN Standard Stainless Steel SEMS Screws Combination Screw With Blue Patch

Stainless Steel 18-8 Phillips Pan Sem Screw M3*12 with Blue Patch

Product Description

Sems screws can be ordered with various combinations of head styles, washers styles, thread styles, materials and plating types catering to your specific requirements. The head style and drive which you prefer can be combined with either a machine screw thread or any form of tapping screw thread. Any washer combination you need can be special ordered if not available from stock. Work hardened materials are available in machine screw threads and heat-treated materials (for greater strength) are available in tapping screw threads.

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:

• Low cost and widely available
• Increases productivity by eliminating hand assembly of individual components
• Permanent assembly assures that the washer is not dropped, lost or forgotten
• Ease of use with hand drivers and in automated production programs
• Available in most screw and washer combinations

Key Considerations When Choosing SEMS Screws:

• Select the correct configuration for the specific task at hand
• Good design ensures savings in the long run
• Proper finishes perform optimally and are aesthetically pleasing
• Ease of use, particularly in difficult spaces

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

As a professional and integrative fastener maker,Oukailuo combines scientific research ,production and sales as a whole.Enjoying a full set of advanced production equipment and quality measurement system.Oukailuo makes it possible that 98% of screws,rivets,cold heading parts and stamping parts which we mainly specialize in,greatly satisfy customers’ needs.Besides,OEM is also available if samples or drawings can be provide.Oukailuo has been verified by BV and ISO9001 international quality management system .Most of our fasteners are in line with ROHS standard (e.g.SGS,CTI).So they are in great demand not only in China but also US,Europe,Oceania and South America.

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.